Worcester Turnpike to Route 9 to…?

We can’t understand our present time — or plan for the future — unless we know how we got here. In a previous post, I described how I ride on Massachusetts Route 9. Now I’ll tell you what that makes me think about. Bear with me.

Backstory

One of the pleasures of riding in eastern Massachusetts is to discern the age and the history of roads from their meanderings, and by studying the buildings along them. Most rural roads here pre-date the advent of motor vehicles. That works well for bicyclists. Roads follow the contours of the land, except for notorious roads with “hill” in their name,

From the arrival of the first humans as glaciers retreated, until the arrival of settlers from Europe in the 1600s, there was only singletrack, trodden on foot.

Settlers introduced horses, oxen and wagons.  Many old trails widened to doubletrack. The settlers located early town centers on hilltops for defense against Native Americans who did not like being driven from their lands. Settlers later built town centers in valleys with water power for mills. Local people would organize a “bee” — a day when they’d get together for road maintenance. Distances between towns were short, so farmers could manage a day trip by wagon to market and back.

I can infer all this as I ride my bicycle in the Eastern Massachusetts countryside. Some old roads still have stone mile markers from before the Revolution.

In the 1700s, Benjamin Franklin organized the postal service. Town-to-town roads, strung together, connected major population centers. Parts of U.S. Route 20, which passes a half mile from my home, are still called the Boston Post Road. It connected to New York and beyond.

From the Worcester Turnpike to Route 9

In the early 1800s, private companies established turnpikes with government authorization. These toll roads radiated out in several directions from Boston. The Worcester Turnpike heads west to  — Worcester. The Turnpike was created in one political stroke, rather than its evolving like most roads. For this reason, it is quite straight, and for the most part, avoids town centers.

A wWrocester turnpike-like toll gate

A turnpike toll house and toll gate, early 1800s — from robertpeecher.com

Turnpikes served budding intercity commerce, but they soon failed financially. They were expensive to construct. Unlike modern toll roads, the turnpikes had no access control. “Shunpikes” went around the tollgates.

By the mid-1800s, railroads linked cities. The turnpikes couldn’t compete. Many did continue to exist, under government management and free for users.

The eastern half of the Worcester Turnpike survived; the western half deteriorated. In 1903, the entire Worcester Turnpike revived, hosting a light rail line. Trolley cars stopped running in 1932 as increasing use of motor vehicles drained demand. Some political shenanigans occurred, too, as Joe Orfant, expert on Route 9, has told me. He has written a fascinating detailed history.

Trolley on the Worcester Turnpike in Brookline

Trolley on the Worcester Turnpike in Brookline (Brookline Historical Society archive)

“The Finest Motor Road in the World”

You’ve probably read about struggles to improve roads toward the end of the 1800s, involving in no small part bicyclists and the bicycle industry. But hardly any roads outside urban areas were paved before the 1920s.

In 1933, benefiting from Depression stimulus funding, the Worcester Turnpike was designated as a segment of Massachusetts Route 9, and extensively rebuilt. At the time of this construction it was heralded as “the finest motor road in the world.” It relieved the congestion on Route 20, which meandered through town centers.

Route 9’s two roadways separated by a median identify it as a precursor of the German Autobahns and New York-area parkways, constructed in the mid- to late 1930s; the Pennsylvania Turnpike (1942); and limited-access highways everywhere.

Route 9, Southborough Masachusetts.

Route 9, Southborough, Massachusetts. Same location, 2011.

A Transitional Design

Even though much of Route 9 seems interstate-like today, designation of the Worcester Turnpike segment as a limited-access highway has never been possible.

Today’s transportation engineers would not create this sort of roadway through a densely populated area. But by necessity Route 9 is “grandfathered,” because it is lined with businesses and residences. and offers the only access to numerous side streets.

Reaching most destinations on the opposite side requires continuing to the next interchange and doubling back. Space-saving interchanges require drivers to slow before exiting and stop for through traffic before entering. Many of these interchanges still exist, largely unchanged.

Interchange of Cedar Street and Route 9, Wellesley, Massachusetts

Interchange of Cedar Street and Route 9, Wellesley, Massachusetts

Massachusetts Route 9 and Bicyclists

The Worcester Turnpike segment of Massachusetts Route 9 is not quiet or pleasant for bicycling. Until recent years, though, it has been serviceable for bicyclists of an average adult skill level. Route 9’s wide shoulders are easy riding. Its slow-and-stop intersections are tame.

But parts of Route 9 have been modified, one by one, to accommodate increases in motor traffic. From early on, many minor cross streets were interrupted. This works well for bicyclists who don’t need to cross the highway, and poorly for those who do.

And when the Massachusetts Highway Department builds or reconstructs an interchange with a limited-access highway, it tends to add limited-access highway features to the intersecting road. Such it the case with the Route 95 interchange.

Full cloverleaf, original design of Route 9-Route 95 interchange

Full cloverleaf, original design of Route 9-Interstate 95 interchange

From the time of its construction in the early 1950s until recent years, the interchange with Interstate 95 was a full cloverleaf, as shown in the satellite image above. Route 9 had two weave areas where traffic slowing for an off ramp crossed traffic accelerating from an on ramp. These weaves were underneath the Route 95 overpass.

Traffic slowing down mixing with traffic speeding up inside an underpass on a high-speed highway is not a great concept.

Redesign of the Route 9/I-95 Interchange

Revised design in the mid-2010s eliminated the weaves, introducing instead a couple of signal-controlled left turns.  This “partial cloverleaf” design includes reduced vegetation, which improves sight distances.

Revised design of Route 9-Route 95 interchange

Revised design of Route 9/Interstate 95 interchange

What does all this mean for bicyclists?

I’ve already described the specifics of a trip which required me to ride through the interchange. Granted, the present configuration is better than the earlier full cloverleaf. As I showed in my previous post, I was able to negotiate it using lane control and a CyclingSavvy bag of tricks.

Bicyclists could use sidewalks. These meet the letter of the law for the Americans with Disabilities Act, though not exactly the spirit of the law. How would you like to negotiate a wheelchair crammed in next to high-speed travel lanes through an underpass? In winter, sidewalk users often must clamber over mounds of plowed snow. Distances are long for walking.

Opportunity is Possible in an Auto-Centric Landscape

In an ideal world, pedestrians and slower, local, wheeled traffic — people on foot, bicycles, e-bikes — would not to have to use Route 9 at all. But this traffic would have to cross Route 95 somewhere.

Including a separate underpass or overpass while reconstructing the interchange would have added little extra cost to the project. It didn’t happen, no thanks to the Massachusetts Department of Transportation Highway Division.

But a single overpass and less than a mile of paths could connect the William Street office park, east of Route 95, to Cedar Street and several residential streets to the west, also opening up a riverfront park to residents and to workers. Route 95 crosses the Charles River on a bridge north of the interchange. A path on a boardwalk could run next to the river. Just sayin’.

Paths to provide alternative access and open up a riverfront park

Paths could provide alternative access and open up a riverfront park. Click to enlarge.

Worcester Turnpike, to Route 9, to the Big Picture

My story raises the larger question of sustainability of the transportation system and world economy. The die was cast in the mid-1800s as railroads bootstrapped the accessibility of coal — fossil fuel — for themselves, for industry, and for space heating, supplanting water power and wood.

Then petroleum made possible the motor vehicles which led to demand for motor roads. These among other technological developments allowed the world to support an increasing human population.

It’s easy to look at what succeeds in the present while neglecting thoughts for the future. It should have been obvious from the start that fossil fuel resources were finite. Grimly, climate change — caused by fossil fuel use — is catching up with us faster.

I almost regret saying this, but the present Covid-19 pandemic is showing us how bicycling becomes more popular in times of crisis. No matter how the future unfolds, people will ride bicycles. The more difficult conditions get, the more people will need them. For all of us, this is motivation to make bicycling better.

 

A Beginner’s Guide, Part One: Bicycle Safe to Ride?

Usually, in Maine, few bicyclists are out on the road in early April. But this year, I saw many. All over the world, bicycle use was on the rise as people cut back on social gatherings, and public-health experts encouraged outdoor exercise. Old bikes were being dusted off. Bike shops — with their shiny new status as essential services — couldn’t keep up with demand.

Sign advertising help including making bicycles safe to rideRecalling my experience eighteen years ago as an adult returning to cycling after a decade away, I started a little experiment. I hung out a shingle (repurposed election sign) for “Free Bike Help” in my neighborhood.

The sign offered basic mechanical assistance such as changing an inner tube or adjusting brakes, and safety advice. I also started a companion blog. The idea was to help beginners, if I could. I didn’t get a lot of patronage, but I did successfully learn to replace a rear shifter!

A Unified Theory…

My goal with the blog was to cover the basics. By late August, I felt I had done that. I wanted a way to tie it all together, a well-organized “Grand Unified Theory of Bike Safety.” So, in a late-August post, I presented a concept called the “Five Layers of Bicycle Safety“, developed by friend of CyclingSavvy Dan Gutierrez. I have also been influenced by a different categorization used by our Bicycle Coalition of Maine in its youth education program .

This series of posts will attempt a similar unifying treatment, using top-level categories of:

  1. Equipment
  2. Clothing
  3. Skills
  4. Behavior

As with the “Five Layers”, I present these in this order because each builds on the last. Each level of safety requires the prior ones. You might think of them also as being in the order in which a beginner cyclist should tackle them.

Let’s start with equipment. Is that old bike safe to ride?


The Bicycle

The two main safety questions to ask about a bicycle are (1) does it fit you, and (2) is it mechanically safe to ride?

Bike Fit

You can go all out with a professional fitting session at your local bike shop. But even a beginner can roughly evaluate whether a bicycle fits.

Handlebar position

Elbows should bend slightly without your having to reach for the handlebars or slide forward on the saddle. The distance to the handgrips depends on the length of the frame, but also on the design of the handlebars and handlebar stem. These are replaceable.

Generally, a person who rides harder will want the handlebars lower so that the weight of the upper body counteracts the force on the pedals. But then the neck and shoulder muscles need strengthening to hold the head up, and so beginners generally prefer higher handlebars.  Handlebars never have to be higher than the waist.

Stand-over Height

Stand in front of the saddle, straddling the frame, with your feet flat on the ground. If the bicycle has a horizontal top tube, it should be 1-2″ below your crotch. If the top tube is slanted down to the seat tube, you can still try to imagine what the distance would be if there were a top tube.

Cyclist standing over a bicycle

Cyclist standing over a bicycle with a slanted top tube. A mountain bike with a slanted top tube favors dismounts on uneven ground.

Cyclist lifting a bicycle to check standover clearance

Cyclist lifting the bicycle to check stand-over clearance. A bicycle with a horizontal top tube should clear by at least an inch.

Typically, the seatpost will protrude about four inches above a horizontal top tube. A somewhat smaller frame is OK, with a longer seatpost. A somewhat taller frame is OK, too, if the top tube is slanted. The reach to the handlebars is more important.

A smaller cyclist (for example, 5’0″ CyclingSavvy Instructor Pamela Murray, pictured below) needs a bicycle with somewhat smaller wheels than usual to maintain the correct geometry.

Leg Extension

While pedaling, your legs should not go completely straight at the bottom of the pedal stroke, but should be just slightly bent. Neither should your knees rise above your waist at the top of the pedal stroke. Riding a with a low saddle will tire you out and wear out your knees.

If leg extension is not quite right, the saddle may be moved up or down to compensate. Be aware, however, that most bicycles are not designed to allow the rider to sit on the saddle with the feet flat on the ground. A saddle that low doesn’t give you enough leg extension. When sitting on a properly adjusted saddle, you will at most be able to touch your tiptoes to the ground. (But this is not necessary when riding! See our post on starting and stopping.)

Your knees will be slightly bent at the bottom of the pedal stroke. If the saddle is too high, you will be “reaching” for the pedals and your hips will rock — stressful!

A bicycle that fits is safer to ride, and more comfortable

On a bicycle that fits, the knee is slightly bent at the bottom of the pedal stroke, with the pedal under the ball of the foot. Arms are more relaxed.

Pam Murray demonstrates a bicycle which is slightly too big.

The bicycle  is slightly too large. The ankle is slightly raised, the knee is straight. Arms are outstretched. The pedal is forward on the foot (green arrow).

Before raising the saddle, take the seatpost out all the way to check that it is long enough when adjusted to fit you. At least 2 1/2 inches should remain inside the frame.

If saddle adjustment still does not create the proper fit, you may need a different bike with a different size frame, or maybe only a longer seatpost, if the handlebar is high enough.

Level Saddle Forward-Back Adjustment

The saddle can also slide forward and backward, and can tilt, after loosening the bolt(s) in the seatpost clamp underneath it. The saddle should be level. You will feel whether it is too far forward or backward as you pedal. (You will want to sit farther back than it allows, or slide forward.)

REI has good detailed information on bike fit.

Safe to Ride?

For evaluating a bike’s mechanical soundness, many education programs use the “ABC Quick Check.”

Air

Under-inflated tires can affect bike control, and harm the rim. Check to see that the tires are properly inflated.

It’s best to inflate tires with a bicycle pump with a built-in pressure gauge, or have a separate gauge. A  pressure rating will be printed somewhere on the tire, measured in “PSI,” Pounds per Square Inch. This is a maximum pressure. You will have a more comfortable ride with a somewhat lower pressure, especially if you are light. Generally, wider tires that operate at lower pressures give a smoother ride.

PSI notation on bicycle tire. Too soft is unsafe, too hard is uncomfortable

Bicycle inner tubes have two common types of valves, “Schrader” (same as on motor vehicles) and “Presta” (skinnier). Some pumps handle only one or the other, some both. I go into more detail about valves and how to use the pump in my “A is for Air” FreeBikeHelp post.

Swapping Inner Tubes
Schrader valve

Schrader valve w/o valve cap

Presta valve

Presta valve, closed. Unscrew nut to open.

If you ride a lot, consider learning to swap out an inner tube yourself, to avoid being stranded. To do this, you will need a set of “tire levers” (to help pry the tire off the rim), a portable pump, and a spare tube of the appropriate size.

On a bicycle with quick-release wheels, swapping the tube is simpler and faster than repairing it, if the hole is even patchable. If so, you can patch the inner tube when you get home and use it as a spare. If the bicycle has an internal-gear hub and/or coaster brake, it may be easier to expose and patch the tube without removing the wheel.

Many bike shops offer classes on how to change an inner tube, or you can learn online. Detailed instructions are at https://sheldonbrown.com/flats.html. One important step in changing a flat on the road is to examine the tire for what caused it. You don’t want to have your new spare go flat five minutes later!

Brakes

Most adult bikes and older kids’ bikes have handbrakes, operated by levers on the handlebars. To check these, lean over the bike, pressing your belly down on the saddle, apply one brake at a time and try to push the bike forward. The brake should engage before the lever has traveled far. When you grip the lever as strongly as you can, the lever should be no closer than about a half inch from the handlebar. The brake should firmly stop the wheel from turning.

If your brakes operate by squeezing the rim between a pair of brake pads, check for brake-pad wear. Cable-operated brakes have a bolt-like adjuster either at the lever or at the brake. As the pads wear, you unscrew this (and retighten its locknut) to keep the lever travel in the correct range. When pads wear down to where there is 1/8 inch of rubber clear of the backing plates, replace them. Also change pads if the rubber has hardened. Disk and drum brakes have the same kind of adjusters, though the mechanism is different.

bicycle rim brake pads, new and worn, which are unsafe

new (left) and worn (right) brake pads

Very small kids’ bikes, and some other bikes, have a coaster brake, a.k.a. “backpedaling brake”. To test this, press back on a pedal and make sure that the brake stops the rear wheel.

If your brakes do not perform well, or make noise, they may need more complicated adjustments, or replacement. Check with your local bike shop.

Chain/Cassette/Crank

The letter C stands for any or all of these. They are all parts of the bike’s drivetrain, which makes it go when you pedal. The cassette is the name for the cluster of sprockets on the back wheel. The cranks are the levers that hold the pedals.

The basic check here is to make sure that the chain and sprockets are clean, lubricated, and move smoothly and quietly. Pedaling backwards should not result in the chain skipping around. Gear shifting should be smooth.

Use chain lubricant from a bike shop, or oil from a hardware store. Do not use WD-40. It is a de-greaser, and will actually remove other lubrication.

After you look at the chain and cassette, wiggle the cranks to make sure they’re not loose side-to-side. The only movement should be circular.

Addressing problems with anything here beyond cleaning and lubrication will typically require repair from a bike shop, or a capable shade-tree mechanic.

Quick Releases

A quick release is a lever-operated clamping mechanism with an adjusting nut on the side of the wheel opposite the lever. Pressing the lever toward the wheel secures it. The lever should be tight enough to leave a slight impression on the palm of your hand, but should still close all the way. A quick-release may also secure the seatpost.  If these instructions confuse you, go to sheldonbrown.com for more detail. It’s important for your wheels to be secure!

Bicycle quick release must be correctly tightened for the bicycle to be safe to ride.

A quick release on a wheel

Safe to Ride. Next…

Now your bike is safe to ride! In the next post in this series, we’ll discuss lights and other safely-related equipment.

Bweginner who has just learned to ride

Learn to Ride the Easy Way as an Adult Beginner

If you, or a friend, never rode a bicycle before, take heart.

It can be easier to learn to ride from scratch than to unlearn habits from childhood.

On August 28, 2017, I had the pleasure of watching John Ciccarelli, owner and Head Coach of Bicycle Solutions (LCI #453) take an adult beginner from nothing to starting, stopping, balancing, steering and turning in a couple of hours. An earlier post promised this follow-up to show how he accomplished this.

photo of adult student learning how to "power pedal" her bicycle as instructor looks on

Pre-pandemic, John Ciccarelli assists a student preparing for a power-pedal start.

John explains his Learn To Ride method:

Our Learn To Ride method is to start with a bike that basically fits, remove pedals, and lower the saddle so the learner can sit with both feet flat on the ground and knees slightly bent. We’ve made a balance bike. Handlebars no higher than the diaphragm.

We use a slightly inclined schoolyard or parking lot. Sloped enough that a soccer ball when started will keep rolling but not pick up speed.

When the client can glide for 10 seconds repeatedly and confidently, if it’s an adult we re-install one pedal, raise the seat 1.5″-2″, maybe the handlebars too, then teach how to glide with a weighted leg on a pedal. That usually doesn’t take very long, and it’s well worth doing. If it’s a kid we skip this and go to 2 pedals.

Re-install the second pedal. Shift the bike to a gear that will give moderate resistance when the student pedals at the speed at which they’ve been comfortably gliding. Do the same “scooter start” as when there was just one pedal, start the glide as before with the second foot hanging in space, then “find your pedal” (which is held in the high position by the steady leg on the other side) on the fly. Begin pedaling. We call this a “gliding start” or “gravity start.”

Sometimes, due to a combination of bike and rider geometry, the “gravity start”/ “find your pedal” step proves difficult. If so, we skip it and do the power-pedal start.

Power-pedal start: both brakes applied, bike leaned toward “ground foot”, which is flat on the ground (not tip-toe), raise pedal to 2 o’clock (right side) or 10 o’clock (left side). Practice the brake release by counting down from 3: “3, 2, 1, release” [“put your fingers away”], then push hard to start the bike. Immediately “sit up straight” and “ride tall.”

Watch it happen!

Practice is necessarily very repetitive, and our 5-minute video succeeds in showing the student’s progress step by step. The same steps work for self-teaching.

This video is from before the Covid-19 pandemic. John and his instructor partners at Bicycle Solutions continue to teach people to learn to ride now at several locations around the San Francisco Bay Area. In an earlier post, John describes his measures to avoid pandemic risks.

Should a motorist cross the double yellow line to pass this icyclist on road with long sight distance ahead?

The Double Yellow Line: What Is A Motorist To Do?

The American Bicycling Education Association‘s mission is not only to educate bicyclists. We want every road user to know how to cooperate.

I drive a car, too, when I have to. Sometimes I cross the double yellow line to overtake a bicyclist. Motorists often must decide whether to pass a bicyclist in a no passing zone.

Cross the double yellow line?

Let’s say that you are driving a car, approaching a bicyclist from behind on a road with a double yellow centerline. The law in some states says “don’t cross the double yellow.”

In about 26 states, other laws require motorists to give three or more feet of lateral passing clearance from bicyclists. Almost always, the road isn’t wide enough for a motorist to stay on her side of the double-yellow line, give three feet, and overtake a bicyclist.

Should the bicyclist squeeze right as much as possible, so that you in your car can brush by with inches to spare, while staying to the right of the centerline?

Or do you wait in your car behind the bicyclist until the end of the no-passing zone? It sometimes goes on for a very long way, even on a road where you can see far ahead.

Centerline laws are based on an assumption that isn’t true

TUnnecessarily long no-passing zone. Cross the double yellow line here?raffic engineering practice with centerlines is based on the assumption that all vehicles travel at or near the posted speed limit. If the vehicle being passed is much slower — a bicycle, farm tractor, or Amish buggy, for example — the passing distance is much shorter. Safe passing is then possible while disregarding the letter of the law.

To use a fancy expression, the double yellow line leads to cognitive dissonance.

Thinking for yourself

The good news: this quandary teaches people to think for themselves. Where I live, in Massachusetts, almost every motorist has come to terms with crossing the double yellow when necessary to pass a bicyclist safely, as in this 45-second video.

Some motorists do take the invitation to cross the double yellow when the sight line ahead is too short for safety. The usual outcome is a brush-by pass, though it can be worse.

And brush-by passes lead to self-reinforcing unsafe bicyclist behavior, when bicyclists conclude that it is safest just to squeeze to the right and hope for the best.

Addressing legal issues with double yellow lines

Given the law as is, what should motorists do?

As the video makes clear enough, don’t take up a bicyclist’s invitation to pass when it might not be safe. What you can’t see can hurt you — or more likely, hurt the bicyclist, who gets more than just a brush-by.

Serious crashes are caused by startling bicyclists with a close pass, and by the wind blast from a passing motor vehicle.  Misjudged close passes cause serious collisions.  You don’t want to be responsible for any of those.

Crossing the centerline (whether it’s marked as a double yellow or not) is a common and generally accepted practice. The likelihood of getting a traffic ticket after executing a safe pass is almost zero. A technical violation of the law might be used against you if you do have a crash… but that would be a result of careless passing.

Several states have amended their traffic laws to explicitly allow crossing a double yellow line to pass bicyclists when safe. Bicyclists should support efforts to change the passing law. Most other states have an exception that reads something like this: “This section does not apply when an obstruction exists making it necessary to drive to the left of the center of the highway.” While none of us like to be referred to as an obstruction, it will suffice until the statute can be made more specific.

For more background, you might go to our longer article on the topic.

More to come

Also see John Brooking’s article “How to Get Great Passing” in this blog.

And we now have a follow-up post with a bicyclist (me!) who will show a better way to handle the same situation, at the same location in the video.

Last vehicle in the platoon, just ahead

I Rode a Bicycle on Massachusetts Route 9

OK, folks, now I have ridden the route that takes me to two appointments along Massachusetts Route 9, through a gnarly interchange that I described in a previous post.

My route.on Massachustts route 9

My route (right to left). Click on the image to enlarge it.

I think that I mostly got it right on the second try. I shot video, and now you can see how I did it.

You could do it on a sidewalk.

Yes, CyclingSavvy teaches safe pedestrian behavior, too! Even a novice bicyclist could use sidewalks to get through the Massachusetts Route 9/I-95 interchange.

Using the sidewalk, you’ll cross a couple of high-speed highway ramps. As you enter a crosswalk, either no traffic should be approaching, or a driver should come to a complete stop to allow you to cross, blocking other traffic. A blinking turn signal is a good indication that a driver will enter an on ramp; its absence is no guarantee that a driver will not.

But I did it in the road.

Using the roadway is faster, and savvy strategies make it work better.

Here’s how I prepared.

I drove through in a car, with a dashcam running. That showed me the basic layout of the intersection, but the experience is so unlike cycling that it didn’t help much.

I next studied the route using Google Maps — as described in my previous post — and rode through a first time on my bicycle. The traffic lights were all green, and I just kept moving. I took notes mentally, and shot video.

A Google mapssatellite view of part of my route, right to left

Google satellite view of part of my route, right to left. Click on the image to enlarge it.

Why go to the trouble?

Was it worth going to this kind of trouble? Yes, so I could write this post, and so I could test savvy cycling strategies against the toughest challenge I could find within easy riding distance of my home.

Before I rode through a second time and reviewed my video, I wasn’t even sure that I would be comfortable riding here myself.

I am not running a contest to find the worst possible riding conditions.

Rather, I am demonstrating that the process to tame a troublesome route segment can work for very unfriendly road configurations.

Your time is well spent if it frees you to ride a bicycle more. After you’ve figured out one or two situations, others get easier and easier to sort out.

Strategies For A Busy Highway

The video below shows the strategies I used. Below the video, I’ll describe the strategies.

The first stretch on a frontage road is easy. It’s 20 feet wide, a good example of where it makes complete sense to keep right so motorists can pass.

Frontage road leading to Route 9

Frontage road leading to Route 9

Then things get interesting. Unless you just happen to arrive at the end of a platoon of Route 9 traffic, you do well to to turn right into William Street and make a U-turn, as I did. I waited, at first behind a pickup truck, then I pulled forward and waited alone.

Waiting for the platoon to pass on William Street

Waiting for the platoon to pass on William Street

By waiting, I could time my entry onto Route 9 and use traffic platooning to get an empty roadway most of the way to an off-ramp, the first major challenge of the ride.

Last vehicle in the platoon, just ahead

Last vehicle in the platoon, just ahead

On my way past the off-ramp, I rode in the left tire track, signaling that I intended to go straight and allowing a really big truck behind me to enter the ramp with zero conflict.

Truck entering off-ramp from Route 9

Truck entering off-ramp from Route 9

I continued past a traffic light, then pulled off onto the shoulder, where I could check for traffic coming from an on-ramp. I waited until the traffic light that I just rode through turned red to block through traffic.

If ramp traffic were heavier, I might have had to negotiate with an entering motorist to slow or stop, and then pass me on the left. But like me, entering motorists would have no main-line traffic to deal with, except for, well, me. Motorists could use the two empty lanes to my left.

Looking back at the on ramp to Route 9

Looking back at the on ramp to Route 9

Thanks to my preparation in the previous step, I next rode through a long underpass on a completely empty roadway. This suited me because drivers exiting the ramp have a somewhat restricted sight line.

Underpass on Route 9, completely empty

Looking back into a completely empty underpass

I got nearly to the next traffic light before it turned green. You may notice that the cars waiting at the light are from the platoon that passed while I was pulled over. Waiting for them to pass didn’t lose me any time. Had I not stopped, I would have waited at this red light. This traffic light blocks traffic entering from the right, and so I had clear passage on a green light.

Signalized on ramp at next traffic light

Signalized on ramp at next traffic light

Plain-Vanilla Lane Control

From this point forward until past the interchange, I used plain-vanilla CyclingSavvy lane control, riding in the rightmost through lane.

One rogue motorcyclist split the lane between me and the SUV to my left. This is legal in some states, but not in Massachusetts. Avoiding collisions with other road users of this ilk is one more reason to be predictable, though it would also be nice to see some law enforcement.

I kept a steady, straight line of travel, and Wild Man sped onward to crash somewhere else.

The rogue motocyclist

The rogue motorcyclist

With lane control in a through lane on this high-speed highway, I was relying on motorists to change lanes and avoid me. They did.

Car merging to pass me

Car merging to pass me

Rear-end collisions are rare, and motorists are unlikely to be driving distractedly when they know that they have to pay attention. But it can happen. My tools to avoid a driver who might rear-end me are glances into my rear-view mirror and if necessary, to swerve out of the way — though possibly into other trouble.

Another Trick Up My Sleeve

There’s another option in this segment: to use the right-turn lane and make a U-turn, as I did earlier at William Street, then turn right on a green light. This can help you ride without other traffic on the short shoulderless section of Route 9 that follows. (If I may editorialize, that segment of Route 9 hardly shows lip service to pedestrian safety. The sidewalks west from there look as though they haven’t been paved or cleared of overgrowth in 50 years.)

Right on green route

Little detour to turn right on green onto Route 9

I do think it’s good that I demonstrated the plain vanilla approach. If the video didn’t cover that, it would offer incomplete advice. On the other hand, with that last U-turn and right on green, it is possible to ride all the way through this interchange, on the roadway, without once mixing with high-speed motor traffic. But that isn’t possible everywhere.

After passing the shoulderless section, I rode a wide, paved shoulder the rest of the way to my destination.

Did you ever imagine that fast traffic might offer a safety advantage? On this busy highway, it does. Any driver who would turn right would have to slow way down, offering ample warning of a right-hook risk.

Riding on the dhouler west of the interchange on Route 9

Riding on the shoulder west of the interchange

This part of the video got so uneventful that I have inserted a map of the ride, and titles, over parts of it.

No love affair with Massachusetts Route 9!

The creation of this post does NOT mean that I like riding a bicycle on Route 9.

I do not like the interchange, whose present configuration dates from 2016.

Nor do I like the stretch of Route 9 designed in the 1930s, despite the shoulder that makes for an easy, if noisy, bicycle ride.

The crowning problem with both of these segments is that there is no other way in or out of office parks, residences and residential streets along Route 9, by any means of transportation.

As I remark in the video, there’s also no way to cross Route 9 for stretches of a half mile or more. As a result, Route 9 has created car dependency far in excess of anything usual in Boston suburbs.

Criticism is fair only along with explanations and suggestions. I have published another post, about the history of Route 9, to discuss the opportunities lost, and explore possibilities to improve matters.

I’m also planning to post a video of a a ride on the same route when traffic is heavier, in rush hour. I expect that the ride will be easier, because the traffic will be slower.

CyclingSavvy Zooms

Adapting to the Pandemic

Instructors are testing how best to Zoom CyclingSavvy sessions and observe social distancing requirements for outdoor sessions.

CyclingSavvy instructor Pam Murray

CyclingSavvy Instructor Pam Murray. Photo credit: Kellar Shearon

Getting Rubber on the Road in Charlotte

During COVID, I’ve already taught a couple of full courses in Charlotte, North Carolina. There’s a resurgence of interest in biking and there are new riders every day.

I taught my first course since COVID on July 10-12, with precautions to reduce exposure as much as possible.

Truth & Techniques of Traffic Cycling is delivered online. Participants have told me they like this better. They report it’s much easier to enjoy this material from the comfort of their own homes.

I limit outdoor sessions to 10 students. Masks are required, with social distancing when possible. In North Carolina, as of this writing, group sizes are currently limited to 25 people outside and 10 people inside. While we are outside, I limit the group to the smaller size to be on the safe side. The only other change is to ride single-file vs. riding double-file, to socially distance as much as possible.

We find that classroom sessions work best with two instructors: one to give the presentation, and the other to monitor the chat window and manage discussion.

Due to the small class size in my courses, everyone chimed in with questions and everyone was engaged. “Truth & Techniques of Traffic Cycling” as I taught it lasted three full hours, in one session.

Live From St. Louis: Savvy Cycling Now

Instructor Karen Karabell is teaching online from St. Louis, Missouri. As an experiment last June, she asked friends to attend four one-hour sessions over the course of the month.

“Truth & Techniques of Traffic Cycling” contains a lot of information and ideas. Karen thought these would be easier for people to digest in a series of one-hour sessions, spread over four weeks.

CyclingSavvy zoom poll

July 28, 2020: Anonymous poll of Savvy Cycling Now participants.

Feedback from her friends was so gratifying that Karen asked our friend Serge Issakov to advertise a July series on two Facebook pages: Supporters of Full Lane Rights for Bicyclists and Bicyclists Belong in the Traffic Lane. Seventy-four people signed up! Fewer than half attended the sessions, though. (Research is clear that most people don’t value what they don’t pay for.)

At the end of the July series, Karen surveyed participants (see poll results). She asked the American Bicycling Education Association to consider making Savvy Cycling Now an official program.

ABEA Beta Testing

This August ABEA has been beta testing Savvy Cycling Now. One hundred and forty-five people signed up for this month’s free series. However, between 50 and 75 have shown up to the three sessions held so far this month.

This class size definitely requires two instructors  which makes the sessions better. Successful traffic cycling is as much an art as a science. Discussions are robust. The varying perspectives make for a gripping session.

Here’s a video clip from the August 11 session of Savvy Cycling Now:

In-Person vs. Virtual Instruction

With online instruction, interaction among students and instructors is less fluid, but there are also advantages. Nobody has to travel. Students participate from the comfort of their own homes, with easy access to a restroom and snacks.

People can sign up from anywhere. The three-hour session can be split up into shorter parts. Both Karen and I keep hearing from participants how valuable this information has been for them. We’re grateful to share it!

My Bike is a Lifeline

Bicycling is essential for my health and well-being, even more so now.  Bicycling has been my solace during this socially distanced and stressful time. It’s the one thing that is mostly the same. When people started asking when they could take the in-person course again, that’s why I started scheduling more of them.

Stay Tuned — and Check Out Ride Awesome!

Expect ABEA to roll out a Covid-adapted program soon. Students will be able to take the classroom session online, and socially-distanced outdoor sessions with any instructor.

Ride Awesome! —  CyclingSavvy’s premium online course — is … awesome. There’s truly nothing like it. During the pandemic, lifetime access to Ride Awesome! is half price. This is the best fifty bucks you’ll ever spend.

With enough requests, we should be able to offer on-bike sessions within driving distance for most U.S. participants (currently, only the United States has CyclingSavvy Instructors). Let us know if you want to complete the course. Contact us!

Would You Ride A Bicycle Through Here?

If you’ve taken the CyclingSavvy course, you’ll recall the video of John Alexander’s bicycle ride across a huge highway interchange.  At less than 10 miles per hour, on an Elektra Townie bicycle.

If you haven’t seen the video, watch it here, and relax. John’s bicycle ride was boring, not daring.

John — and Keri Caffrey, riding behind him with cameras to record it all — had the road almost entirely to themselves, through thoughtful choice of lane position, and by taking advantage of traffic-signal timing.

My own gnarly bicycle riding challenge

I face a similar situation later this month. I have two doctor’s appointments about a mile apart. By far the shortest route between the two doctors’ offices passes through a similar huge highway interchange. I could take a much longer way there, and this longer ride would also include backtracking on a poison-ivy-infested sidewalk.

On Monday, I checked out the route in a car, with a dashcam running:

OK, here’s a challenge for you:

How would you ride this?

Would you ride it at all?

Have a look in Google maps

The image below shows my route, from right to left, in Google Maps. (When I drove, I went straight through on Route 9 rather than turning into William Street. That doesn’t change anything important.)

Google map of gnarly route for bicycle ride

Google will let me share the location but not the route information. Here’s the location in Google Maps. You can play around with Google Street View and get a closer look.

map view of Google Maps, featuring yellow Google Dude
Google Dude is the yellow fellow in the lower right corner of Google Maps

Not familiar with Street View? If you’re using a computer, click on Google Dude, the yellow fellow in the lower right corner of Google Maps. Drag the green fog under his feet to any street that lights up in blue, release the mouse button, and there you are.

You can move around using the the keyboard’s arrow buttons.  The right and left buttons turn you around. The down button is your reverse gear, up button moves you forward. Or click on the image and drag with the mouse.

Once you’ve dropped your Dude, there’s a “compass” in the lower right corner that also makes it easy to turn around:

Google Dude view of William Street
Compass in lower right corner (in Google maps) spins map to the view you want.

Once I dropped Google Dude on the road, I spun the compass to point Dude in the direction I’ll be riding next week. I clicked on the street to move forward, and stand with Dude in the middle of any road.

The arrow in the black box at the upper left corner of the screen takes you back to the overhead view.

On a tablet or smartphone, you can tap and swipe the screen to access these same features.

This bicycle ride is possible!

I have discussed this route with a few other people and found at least two, maybe, three different ways to manage it. I don’t consider the ride difficult even for a novice cyclist, but savvy strategies can make it much more convenient. (Hint: see my description of John Alexander’s ride above.)

Please post comments and suggestions. I’ll get back to you in a couple of weeks with video of my ride.

I love to ride my bicycle, but I have my limits. Arriving at the doctors’ offices drenched in sweat during a pandemic or with rain would exceed those limits! If necessary, I’ll ride the route on a different day to shoot the video.

Your turn now.

I’m eager to hear your thoughts on this ride.

The Madrid Model

Note from Editor John Allen: This post started with a request from Madrid Ciclista in Madrid, Spain, to publish a translation of an article on this blog into Spanish. We were happy to comply. A look at their website revealed that Madrid has been thinking outside the box about bicycling. Miguel Cardo of Madrid Ciclista wrote the post below describing the “Modelo Madrid” in 99.44% perfect English.

Fire up Google Maps.

Switch to satellite view and have a look at any large avenue in my city, Madrid:

Madrid boulevard with ciclocarriles 30 marking

 

 

Madrid boulevard with ciclocarriles 30 marking

Lanes marked with that symbol have a speed limit of 30 km/h (about 19 mph). The default of 50 km/h (about 31 mph) is allowed in the other lanes. The marking with the oversized sharrow means:

  • Bicyclists can use the lane;
  • They have to ride in the middle of the lane.

All this started in 2013.

The city government was still reeling from the excesses of a real-estate bubble. Debt had ballooned to 7.4 billion euros after a failed Olympic bid. [1] The city could not even dream of any significant infrastructure project. A giant fine from the European Commission was looming for the city’s failure to reduce its pollution levels. [2]

City officials had to come up with something. This time they just couldn’t buy their way out of trouble. So they tried something different: a plan to increase cycling modal share without any large infrastructure projects.

The first plan was modest.

City officials started with a timid plan of “ciclocarriles 30” along the avenues and boulevards surrounding the Old Town. “Ciclocarriles 30” means 30 km/h bike lanes. The plan also included a municipal bike-share scheme that would use electric bikes, because Madrid is notoriously hilly. [3]

Municipal bike-share bicycle riding over a CC30 marking - photo by permission of @MadCycleCuqui

Municipal bike-share bicycle about to pass over a CC30 marking. Photo by permission of @MadCycleCuqui

In the beginning, nobody thought much of the plan.

In a chaotic and aggressive environment, motorists would not welcome the new users on “their” roads. Madrid city police have a well-deserved reputation for not enforcing traffic laws. Most people thought of the plan as some low-cost desperate measure to postpone the EU fine for a while, at least until a different administration was in charge. I’m not even sure that the city officials who created the plan had much faith in it.

Onward to Modelo Madrid.

Modelo Madrid makes urban cycling a transportation mode equal to any otherFast forward five or six years. Madrid city police still turned a blind eye to speeding, but the unexpected happened.

Madrid’s undisciplined, chaotic, aggressive motorists can be seen moving slowly behind a cyclist, waiting for the right moment to overtake — changing lanes to pass in the lane to the left.

The true benefit of the 30 km/h (19 mph) speed limit is not that motorists comply with it, but that they drive at 15 km/h (9 mph) behind cyclists without even revving their engines. A new generation of cyclists — many of whom started riding on the new municipal white electric bikes — uses these roads with confidence.

Every road user is mandated to control his or her traffic lane.

A third measure sustaining this change was a city ordinance issued in 2010, which not only allowed but made mandatory riding on the center of the lane. [4]

In the video below, shot by the rider of a folding bicycle, nothing exciting happens, so don’t feel compelled to watch it all the way through.

The number of cyclists is still modest (2-3 percent in the central area, according to counts by Madrid Ciclista) but growing. [5]

Percentage of bicycles in central Madrid with respect to other vehicles, counts by Madrid Ciclista

Percentage of bicycles in central Madrid with respect to other vehicles, counts by Madrid Ciclista

The graph below, from the city’s lower, less accurate counts, shows the trend from year to year:

Yearly trends in bicycle use in central Madrid

Yearly trends in bicycle use in central Madrid

When compared with other European cities, the number of crashes per million trips is encouragingly low. [6].

City counts showing trend in bicycle use

We can now say that slow lanes were the origin of the so-called Modelo Madrid. The Madrid Model recognizes urban cycling as a transportation mode equal to any other, not requiring special infrastructure but granting the same rights to cyclists as to other vehicle operators. [7]

No cyclists ride on the sidewalk. Cyclists grant the same respect to pedestrians as they demand from motorists. Modelo Madrid puts in practice many of the principles pioneered by John Forester and refined in the United States by CyclingSavvy.

Modelo Madrid: the way of the future?

As with any other aspect of public policy, we can’t “ride” on our laurels — to paraphrase the English idiom — and expect equal treatment for cyclists in Madrid forever.

Economic stimulus money spent on “sustainable” projects is always a threat for urban cyclists, especially in these COVID-19 times. Going back to the segregated model is still possible. Some very loud cycling activists and associations are always demanding narrow bike lanes in the door zone or on sidewalks, following the North European model.

Here’s an example from Seville:

Sidewalk bikeway in Seville, Spain

Bikeway in Seville, Spain, 2018. Photo credit: Gary Cziko

On the other hand, more Spanish cities are introducing slow lanes, especially after the COVID-19 lockdown: Valladolid, Burgos, Leganés, Granada…

Cyclist in Ciclocarril 30

Photo by permission of @MadCycleCuqui

Additional thoughts from Editor John Allen:

Which way should US states go? Could there be slow lanes on multi-lane streets in the USA? Keep in mind that higher speeds are common now on e-bikes, which probably did not in exist when Seville bikeways were planned and constructed.

Consider that automated crash avoidance is becoming common on motor vehicles, and improving. A transition to autonomous vehicles will follow, in time.

Suppose that a hoped-for decrease in motor traffic occurs with autonomous vehicles. Consider also the dangers of edge riding, and the reduction in efficiency and safety when turning vehicles must cross the path of through-traveling ones, rather than merging before turning.

All of these factors suggest that an integrated model like the Modelo Madrid could become more compelling as time passes.

Does US practice support the Modelo Madrid?

There is no specific mention in the model US traffic law [8] of different lanes with different posted speed limits. Yet these are in wide use, established indirectly.

In several states, large trucks are held to a lower speed limit than other vehicles [9], and are prohibited from using the leftmost lanes on multi-lane highways [10]. Edge-of-the road “friction” with parked vehicles, walk-outs, drive-outs and parking decreases the safe speed in the rightmost lane on city streets.

The general rule is to pass on the left, in the “fast lane”. But faster vehicles may pass bicyclists on the right in a right-turn lane, and sometimes a bus lane.

In all of these cases, the basic speed limit applies: to drive no faster than is reasonable and prudent. That speed is established by the design of the street and by the users who are present. Here’s an example of a bike lane to the left of a bus lane on University Avenue, Madison, Wisconsin. [11]

Bike lane to left of bus lane, Madison, Wisconsin, 2001

Bike lane to left of bus lane, Madison, Wisconsin, 2001. Photo credit: John S. Allen

Footnotes

(Web links in the body of an article are more usual, but we prefer not to sidetrack readers into articles which need explanation, some in Spanish. So, these footnotes – Editor.)

[1] Newspaper article about the debt

[2] Newspaper article about the fine

[3] Online news article describing the original plan, with map

[4] City ordinancetranslation of relevant sections into English

[5] Madrid Ciclista’s article “en Madrid no hay bicis” (“There are no bicycles in Madrid”) describes and promotes bicycle counts by citizens, and asserts that the city government has been undercounting.

[6] Crash rates in different European cities, and bicycle trends in Madrid. Article is in English: http://madridciclista.org/city-of-bikes/

[7] Madrid Ciclista article describing the Modelo Madrid.

[8] https://iamtraffic.org/wp-content/uploads/2013/01/UVC2000.pdf — see pages 147-148. Each US state enacts traffic law separately, and so there are differences.

[9] https://en.wikipedia.org/wiki/Speed_limits_in_the_United_States

[10] https://static.tti.tamu.edu/tti.tamu.edu/documents/policy/congestion-mitigation/truck-lane-restrictions.pdf

[11] The University Avenue installation serves a large student population. The buses, on their fixed route, stay in the bus lane. More details here.

Crowd of bicyclists

Bikeway Study: Strategies to Improve Bicyclist Safety

 In Part One of this series, I discussed how most bikeway studies fail to address the key factors that lead to crashes, and I described the basic findings of Metroplan Orlando’s new bikeway study. Part Two went into deeper detail to show how cyclist direction, position and speed affect crash risk. In this final part, I’ll discuss how data from the study should inform attitudes and strategies to improve cyclist safety.

Crowd of bicyclists

Jacobsen’s widely-cited study

In a 2003 paper in Injury Prevention [1], Peter Jacobsen found that higher bicycle use went with lower cyclist crash rates across geographies (European nations and California cities) and over time (United Kingdom and The Netherlands). As cycling (and walking) increased, it seemed that the overall crash risk dropped. In the discussion section of the paper, Jacobsen wrote:

“It seems unlikely that people walking or bicycling obey traffic laws more or defer to motorists more in societies or time periods with greater walking and bicycling. Indeed, it seems less likely, and hence unable to explain the observed results. Adaptation in motorist behavior seems more plausible and other discussions support that view.”

Though Jacobsen provided no behavioral data to support this explanation, it has become popular among bikeway proponents. When skeptics point out conflicts created by many bikeways, advocates have a handy response: “But there’s safety in numbers…” Others have questioned Jacobsen’s math [2].

Does Jacobsen’s conclusion hold water?

Our bikeway study shows whether that assumption holds water. Did rates for motorist-caused or bicyclist-caused crashes increase or decrease with larger numbers of bicyclists?

I divided the twenty streets into five groups of four each, ranked from lowest to highest bicyclist counts over 10 years. The table below shows enormous differences in the amount of bicyclist travel. There was 60 times as much bicycle use on the busiest streets as on the least busy.

Quintile Streets by Bicyclist ExposureLowest Quintile2nd Quintile3rd Quintile4th QuintileTop Quintile
Bicyclist Miles Traveled819,0005.344 M9.674 M13.341 M49.218 M
Miles Between Motorist-Caused Crashes19,00046,00039,00049,00045,000
Miles Between Bicyclist-Caused Crashes13,00073,000125,000205,000198,000

I left the lowest 1/5 out of the analysis, because the bicyclist exposure and the numbers of crashes are tiny. Even from the second group to the top group, there’s a nine-fold increase in bike use:

Orlando bikeway study: miles between bicyclist- vs motorist- caused crashes
The results? There is little difference in the risk of motorist-caused crashes. (Remember, a higher number — more miles between crashes — means lower crash risk.) But bicyclist-caused crashes were 170% to 180% lower for the top and fourth quintiles!

Better overall bicyclist behavior is responsible for the “safety in numbers” effect. [3]

It’s plausible that motorist behavior improved some small amount on the higher usage streets, but that would probably be masked by the reduced risk due to slower cyclists on the sidewalks.

Three of the four streets in the 4th quintile (with the lowest risk for cyclist-caused crashes) are two-lane streets with bike lanes. These are just the type of streets touted as “bike-friendly.”  Bikeway advocates like to say that bikeways attract potential cyclists who are “interested but concerned.” [4] Wouldn’t “interested but concerned” cyclists generally be more cautious and less likely to cause crashes?

The streets in the top quintile are all high-speed, high-volume, four- and six-lane arterials. Their obvious risks should encourage cyclists to use extra care.

It’s possible that motorist behavior does improve with still higher bicycle use. On the busiest cycling streets in the Orlando bikeway study, a bicyclist would pass any given point about once every eight minutes. In some European cities, bicyclists are almost always in sight. Motorists’ expectations would be radically different there.

Study results: crash risks and numbers

Orlando bikeway study: key to the three graphs below

Key to the three graphs below

In this bikeway study, ten times as many cyclists were using bike lanes on the bike lane streets as were using the travel lanes on the comparison streets. Almost all bicyclists on the comparison streets were riding on sidewalks. But there was only 28 percent more bicyclist travel overall on the bike-lane streets. Most of the increase in bike lane use was due to bicyclists switching from the sidewalk to the bike lane.

Orlando bikeway study: Estimated miles of travel on streets with and without bike lanes

Though the bike lanes in this bikeway study presented a 53 percent lower crash risk per cyclist, four times as many motorist-caused crashes occurred in bike lanes on bike-lane streets as in travel lanes on the comparison streets. Almost all of the motorist-caused crashes on the comparison streets, and more than 3/4 of them on bike-lane streets, occurred on sidewalks and crosswalks.

Orlando bikeway study: Counts of motorist-caused crashes on streets with and without bike lanes

The crash rate was higher for sidewalks on the bike-lane streets than on the comparison streets, and so the bike-lane streets had a higher overall crash rate, despite the 53 percent lower crash risk than with the travel lanes on comparison streets. (Recall that a longer bar in the graph below represents a longer mileage between crashes — lower crash risk.)

Orlando bikeway study: miles between motorist-caused crashes on streets with and without bike lanes

How to approach a Vision Zero goal

The stated goal of the Vision Zero Network is to eliminate all traffic fatalities and severe injuries, while increasing safe, healthy, equitable mobility for all. [5]

In order to truly approach this goal, much more effective risk-reduction methods than bike lanes and sidepaths must be implemented. As I highlighted in Part 2:

Rather than bikes lanes or sidewalks improving the safety of bicyclists, bicyclists are improving the safety of bike lanes or sidewalks by riding slower.

Bikeway advocates point to separated bike lanes, special bicycle signals, and channelized (“protected) intersections as improvements over sidewalks and ordinary striped (“basic) bike lanes. Slowing bicyclists at the approaches of intersections is part of bikeway designers’ design strategy, and may reduce risk somewhat.

In our Metro Orlando data, though, only 28 percent of motorist-caused turning and crossing crashes (for cyclists riding with the flow) occurred at signalized intersections. Forty-two percent occurred at unsignalized intersections (mostly minor cross streets), and 30 percent at driveways.

Orlando bikeway study: turning and crossing crashes by intersection type

Most turning-movement collisions do not occur at signalized intersections. It is not practical to install preventive measures everywhere a motorist may cross the path of a bicyclist.

Mitigating all conflicts would require channelization to slow bicyclists at every intersection and driveway. This would be very costly — if even possible — and would slow cyclists nearly to pedestrian speeds, making bicycling less useful. [6]

Cyclists who tried to maintain their preferred speed could be blamed for crashes in the bikeways, or harassed for using lane control in the travel lanes. Now with electric-assist bikes, novice cyclists can ride on bikeways at the speeds of fitter, experienced cyclists. This is not a good combination.

The 6 E's of a bicycle program

Final Thoughts

The real world is a very messy place. As with many of life’s other challenges and questions, prevention of bicyclist crashes doesn’t lend itself to simple, straightforward answers. Nor does the question of whether bikeways really improve cyclist safety.

Cyclist skill, direction, position, speed, predictability, and conspicuity are concerns in crash prevention. So are motorist attention, speed and turning movements, lighting conditions, sight lines, traffic controls, and many other lesser concerns.

Attempting to address all of these factors with street and bikeway design is bound to fail. Design can improve safety, but it won’t get us as far as we’d like.

“Prepare the child for the path, not the path for the child.”

This saying (perhaps Native American) has been replaced with a popular version, found on parenting websites, using the word “road” instead of “path.” [7] and [8]

Prepare the child for the road, not the road for the child. Adults as well as children benefit from such a philosophy. Bicyclist training and education are not optional.

Mother and child riding side by side on a street and both signaling a right turn


Footnotes

[1] Jacobsen’s article

[2] The widely cited hyperbolic, descending curve which appears in every graph in Jacobsen’s report  is an artifact of faulty math. Correct math gives varied results. See this for an explanation.

[3] Other research has also shown that bicyclist crash rates are lower on busy streets, notably a  study by William Moritz from the 1990s. One factor: cyclists with more experience and greater skill are more likely to ride on busy streets. Also, more mentoring occurs where bicycling is more common. See discussion here.

[4] This categorization, one of four by Portland, Oregon bicycle coordinator Roger Geller, conflates two characteristics. Not all interested people are concerned, and vice versa.

[5] Wikipedia article describing Vision Zero, with links to other resources.

[6] The reduction in possible trip destinations within a given time is greater: in an urban grid: half the speed, 1/4 the destinations.

[7] See this, for example.

[8] However, Strong Towns offers the opposite advice.

Bikeway Study Part Two: Your Speed, Your Choice

Safer Motorists or Safer Bicyclists?

Last week, in the first of a three-part series describing my research on bikeway crash risk, I gave relative estimated risks for three types of motorist-caused crashes when bicyclists rode with the flow…

miles between crashes graph_intersection with diagram

Travel Lane Edge – 61,000 Miles Between Crashes (Highest Risk)

Bike Lane – 75,000 Miles

Sidewalk – 122,000 Miles (Lowest Risk)

… and asked:

Why would the risk be lowest for bicyclists riding on sidewalks?

All crashes occurred at intersections and driveways with no sort of “protection” for the bicyclist. Don’t experienced bicyclists avoid using sidewalks — and sometimes even bike lanes — because riding in the street is supposed to help them avoid such conflicts?

Stay with me while I show you where the data led me as I pondered this question.

There are two key possibilities why these risks are lower: (1) Motorists might be more likely to yield to bike lane and sidewalk cyclists for some reason, and (2) Bike lane and sidewalk cyclists might be better able to avoid a motorist-caused crash.

It’s often argued and assumed that striping a bicycle lane leads motorists to look for and yield to cyclists. But the sidewalk cyclists had lower risk for these motorist-caused crashes than even the bike lane users, though sidewalks are neither designated nor designed for use by cyclists.

When we split up the crashes further, we see that only the risk of drive-outs is higher for bike-lane and sidewalk cyclists.  Right-hook and left-cross crashes are less likely:

Right Hook & Left Cross

miles between crashes graph_right hook and left cross

Travel Lane Edge – 73,000 Miles (Highest Risk)

Bike Lane – 100,000 Miles

Sidewalk – 300,000 Miles (Lowest Risk)

Sidewalk cyclists have the highest risk of drive-out crashes:

Drive-Out

miles between crashes graph_drive out

Travel Lane Edge – 367,000 Miles (Lowest Risk)

Bike Lane – 292,000 Miles

Sidewalk – 245,000 Miles (Highest Risk)

Would motorists be more likely to yield to bike lane and sidewalk cyclists during overtaking right turns and opposing left turns, but not during drive-outs? I think that this is not more likely.

People Make Mistakes

News Flash: Humans make mistakes, whether they’re walking, bicycling, or driving motor vehicles.

We expect slower automobile and motorcycle drivers to be better able to react more quickly than faster ones to avoid conflicts caused by other motorists.

Why would we assume differently for bicyclists? [1]

Recall the average speeds we found for cyclists using the three positions. A slower cyclist needs less perception and reaction time and less braking distance:

Bicyclist PositionBicyclist Average (Mean) SpeedBicyclist 85th Percentile SpeedStopping Distance at 85th Percentile Speed
Travel Lane14.5 MPH18.4 MPH104 Feet
Bike Lane11.8 MPH15.7 MPH83 Feet
Sidewalk9.3 MPH12.4 MPH60 Feet

Facing an impending motorist-caused crash, the bike-lane user riding at the 85th-percentile speed would need an additional 23 feet of stopping distance compared to the sidewalk rider — about the width of the typical two-lane street. The difference is about the same between the travel lane and the bike lane. The total difference between travel lane and sidewalk is about the width of four traffic lanes, or 44 feet.

85th Percentile Bicyclist Speed and Stopping Distance

85th percentile stopping distance

With right-hook and left-cross crashes, the motorist is coming from the bicyclist’s left, so the farther right the bicyclist is, the longer it takes for the motorist to reach the bicyclist’s path. This means that the bike lane or sidewalk bicyclist gets more reaction time. With drive-out crashes, the travel lane cyclist gets the most reaction time.

Rather than bikes lanes or sidewalks improving the safety of bicyclists, bicyclists are improving the safety of bike lanes or sidewalks by riding slower.

The Takeaway

If you’re going to ride on the sidewalk, bike lane or edge of the travel lane, you must ride slower.

I can’t tell you how slow is slow enough. But if you’re having more close calls with turning and crossing vehicles than you’d like, you need to either slow down, or use lane control. [2]

Based on the data, each additional mile per hour of bicyclist’s speed increases the risk of a motorist-caused crash about 9 percent.

With lane control, you give yourself much more reaction time for drive-out crashes, you eliminate the right hook crash, and you get more options for avoiding the left cross.

lane control allows faster speed

To put it in the simplest of terms: The faster you go, the more important it is for you to control your travel lane.

Sidepaths and Motorist-Caused Crash Risks

We performed the same type of analysis for five sidepaths which have been in place for over ten years. I was curious as to whether they would have better safety performance than a regular sidewalk. They did — about 68 percent better, on average — but it varied widely. Looking closer, I found that three of the paths had few intersections and commercial driveways — 4.6 per mile — while the other two had 11.6 per mile. Low-conflict paths had 64 percent lower motorist-caused crash rates compared to the other two paths; 51 percent lower than for ordinary sidewalks.

Low-Conflict SidepathsHigh-Conflict SidepathsRegular Sidewalks
Intersections and Commercial Driveways per Mile4.611.610.5
Cyclist Miles Between Motorist-Caused Crashes81,000 (Lowest Risk)29,000 (Highest Risk)40,000

miles between crashes graph sidepaths

Notice that high-conflict paths had 10 percent more intersections and driveways per mile than the sidewalks, but 38 percent higher motorist-caused crash risk, likely due to the higher bicyclist speeds on the paths (16.3 MPH versus 12.4 MPH for the sidewalks).

If we replace a sidewalk with a sidepath without somehow reducing the turning and crossing conflicts, the risk for the bicyclists will likely increase. This information helps you as a cyclist to decide when a sidepath might be reasonable to use — such as going with the flow on a low-conflict path — and when to avoid one — for example, when going against the flow, or going with the flow fast on a high-conflict path.

Bikeway designers can’t foresee every situation for you, so don’t expect them to.

Next time: Safety in numbers, Vision Zero, and “Preparing the Child.”

Footnotes

[1] The 1976 Bikecentennial study found that 38% of crashes occurred on downgrades, though the constituted only 15% of the route. This was for all types of crashes.

[2] This short video explains lane control and the need for it.