All the Best US Cycle Tracks are Street Level

There has been a lot of discussion in the local bicycling scene about cycle tracks lately. “Cycle track” is a bit of a generic term. It may refer to a one-way or two-way facility. It may refer to something at street level or at curb height. It may create separation between cyclists, motorists, and pedestrians using paint, medians, or curbs. It may or may not include a floating parking lane. It’s complicated. There are any number of design details that may differ from one cycle track to the next. We need to be careful when using the term cycle track, as the term on its own is not particularly descriptive.

Today, I want to discuss one of these variables – elevation. There are a lot of ongoing discussions about whether cycle tracks should be at street level, or curb height. Curbs play a critical role in this discussion. In the vast majority of urbanized areas in the US, roadway space is demarcated by the use of a standard concrete curb and gutter. There are local variations, but the gold standard is a gutter pan somewhere between 12″ and 24″ in width and a 6″ tall curb. There are two primary functions of this curb: 1) to convey stormwater, and 2) to clearly demarcate exactly what is on the street and what is off the street.

MnDOT Standard B-Curb

MnDOT Standard B-Curb

For a number of years now, curbs have been becoming more and more difficult to design, primarily because of ADA ramp requirements. I want to be clear that I fully support ADA compliance and the new rules, but it is fair to say that they add a new level of complexity to intersection design, especially at signalized intersections. There are very specific rules about ramp grades, placement and orientation of truncated domes, placement of signal poles, push-button pedestals, level landings, crosswalk locations, and other features. Engineers who have been designing curb ramps for decades are scrambling to re-learn their trade.

American bicycle planning for decades has designed bicycle facilities that fit well into one of two categories: on-street or off-street. For the most part, this question is synonymous with “which side of the curb is it on?” On-street bike facilities are traditional bike lanes, and recently, facilities such as lanes marked with sharrows, or even bicycle boulevard facilities. Off-street facilities are trails or paths, such as a recreational trail or a sidepath. There have long been lines drawn in sand about whether cyclists are better off in the street mixed with traffic or separated from traffic on sidepaths. Off street trails have been accused of being not much more than glorified sidewalks (which nearly everyone can agree is not a great place for adult cyclists). On street facilities have been criticized for failing to create adequate separation between bikes and cars. Most of us agree that off-street trails are great at mid-block locations, but the intersections, where cyclists have to leave the path and enter the roadway, is where the real safety concerns are. Where do cycle tracks fit into this discussion? Which side of the curb are cycle tracks on?

Any discussion of cycle tracks is incomplete without a discussion of Denmark and The Netherlands. In both of these countries, cycle tracks occupy a bit of a middle ground somewhere between on-street and off-street – a middle ground that doesn’t really exist within the US. In both countries, curbs are a bit, eh… different.  Curbs are rarely a 2.5′ wide piece of concrete. Only occasionally do Dutch streets actually have a gutter pan, and curbs are often somewhere in the 2″-4″ range. In both countries, cycle track design often uses half-size curbs, subtly demarcating space with 1″-2″ change in elevation. There is nothing similar in the US.

Dutch and Danish cycle tracks have a remarkable way of allowing cyclists to pass through intersections without ever feeling like they are going up or down a ramp, across a curb, or through a gutter. In a sense, they strike a critical balance between the messages that have stymied discussions of bike facilities in the US. At mid-block locations, they provide protection and a low-stress environment for cycling similar to off-street trails. At intersections, they seamlessly transition cyclists to an on-street location where they have the benefits of additional visibility provided by on-street bike lanes.

Take a look at this image below, which is a pretty typical Danish intersection design in the city center where space is scarce. In this image, you can see the cycle tracks extending away from the corner, and as they do, the cycle track is on top of a smallish 2″ or so curb. As the cycle tracks approach the intersection, the curbs just sort of disappear – the 2″ of elevation difference just sort of absorbed into the roadway surface. While cyclists are separated from motorists in mid-block locations by a small curb, they are able to transition seamlessly to street level at intersections. Brilliant.

Copenhagen Typical Intersection

Copenhagen Typical Intersection

This type of design is pretty straight forward and could be reproducible in the US relatively easily. Here’s a video from John Allen of a bikeway on Concord Ave in Cambridge, MA that more or less implements this design (NOTE: I am not a John Allen fan, but the video does a decent job at giving you a feel for the bike facility – feel free to watch the video on mute). I actually like this design, though I don’t think it’s quite what folks have in mind locally when they are discussing cycle tracks.

In The Netherlands, it is common to see something similar to the image below. Right on the corner there is a little raised roundish median (which a co-worker of mine once dubbed “the biscuit” and I see no reason to use any other term). A lot of folks prefer this design to the Danish design above because it offers cyclists a bit more protection if they’re waiting for a light right on the corner. Yet again, notice that there is no clear ramp for cyclists to navigate, and no gutter pan. Any changes in elevation between the roadway and the cycle track are subtle at best. The cycle tracks in the photo below have the trademark dutch red coloring, and if you look closely, you can see where the red coloring stops near the biscuit. Other than color, the transition of the cycle track to the intersection is seamless.

Typical Dutch Intersection with Biscuit

Typical Dutch Intersection with Biscuit

In the photo above, is the cycle track an on-street facility or an off-street facility? Is it proper to think of a facility like this as part of the sidewalk, or part of the roadway? In US terms, is this cycle track in front of the curb, or behind the curb? I suspect only an American (blogger) would ask these questions.

Also, a quick clarification that the question of curb-height or street-level, on-street or off-street is mostly meaningless at mid-block locations. It just doesn’t really matter. But it does matter at intersections. Alot.

So what about the cycletracks that exist in the US already? Let’s take a look at a few examples.

First let’s look at Vassar Street in Cambridge, MA. This street has one-way cycletracks that are clearly at curb height flush with the sidewalks. Decidedly off-street. How does it handle signalized intersections? Well, it doesn’t. I can’t find any good photographs online, but it’s pretty visible on Google Maps that the cycle tracks transition to traditional on-street bike lanes several hundred feet before any signalized intersection along the corridor. This design is lovely at mid-block locations, but it doesn’t address signalized intersections.

Vassar St, Cambridge, MA

Vassar St, Cambridge, MA

Below is a design from Evanston, IL of a two-way facility.  Evanston developed a bikeway along Church Street, and they wanted two blocks of it to be at curb height. Please ignore the rubbish bins in the middle of the cycle track and the question of why no attempt was made to visually distinguish the cycle track from the sidewalk space and focus only on the ramp designs. This is an intersection with a driveway, but you could imagine the same thing at a signalized intersection. This is the opposite of seamless, it clumsily uses a standard ADA pedestrian ramp complete with truncated domes and gutter pans. The engineers decided to include an ADA compliant ramp on a bikeway, presumably not for blind cyclists but because a blind pedestrian might wander onto the cycle track.

Curb height two-way cycle track at an intersection via Steve Vance on flickr

Curb height two-way cycle track at an intersection via Steve Vance on flickr

However, take a look at this same facility about one block down the road in the picture below. At this point the same facility has transitioned from a facility that is decidedly off-street and curb-height to one that is decidedly on-street and at street level (notice how there is no middle alternative – it’s either on or off?) Some folks won’t like this design because it lacks a curb or median separating motorists from cyclists. However, there are a few things that I really like about it. Notice how it completely avoids the question of ramps, curbs, or ADA compliance. Cyclists do not navigate gutter pans, ramps, pavement joints, or truncated domes. They are functionally quite different than riding on a sidewalk. Even more, it allows the existing gutter, curb, sidewalks, ADA ramps, crosswalks, etc. to be 100% standard US design.

Street-level two way cycletrack via Steve Vance on flickr.

Street-level two way cycletrack via Steve Vance on flickr.

Ok, I can hear people thinking that I’ve picked some of the worst possible examples of cycle track designs to make my point. Ok, point taken. It’s because I honestly am not aware of great curb-height (or half-curb-height cycle track designs in the US. If you have examples, please let me know. And again, the question is really not about mid-block locations – it’s the intersections that matter, and curb-height cycle tracks complicate what is already a complicated set of rules governing intersection and ramp design.

Now, think of your favorite cycle track that has been developed in the US or Canada, and let’s see how it handles issues like half-curbs, ramps, crosswalk locations, and ADA compliance.

Here are some photos:

New York 9th Avenue via Steve Vance on flickr

New York 9th Avenue via Steve Vance on flickr

Dunsmuir Vancouver Cycle Track

Dunsmuir Vancouver Cycle Track

Washington DC Cycle Track

Washington DC Cycle Track

15th Street, Washington DC via Dan Reed on flickr

15th Street, Washington DC via Dan Reed on flickr

Montreal Cycle Tracks

Montreal Cycle Tracks

All the photos above are street level facilities. They have no impact on curb height, ramps, crosswalk locations, and ADA compliance. Engineers are free to locate pedestrian curb ramps and crosswalks wherever they please. Are there other favorites out there?

Here’s my point: Curb-height cycle tracks introduce a level of complexity to the design of intersections that is unnecessary. I am not aware of a US city that has successfully translated the elegance of dutch cycle track design into a US context with half-curbs and biscuit islands or a full curb-height design that navigated ADA requirements. Meanwhile, cities all across the US have implemented street-level cycle tracks separated from motorized traffic with medians or parking. In many agencies, it is safe to say that the engineers are not champing at the bit to design cycle tracks at all, let alone a facility that requires them to fundamentally re-imagine all of the curb ramps, which are already tricky enough as it is. I am not suggesting that we settle for less-than-stellar facilities. The word I am hearing from cities like New York and Washington DC is that they are having phenomenal success with their street-level facilities. This is also not to knock on communities like Indianapolis that have developed networks of facilities that are entirely off-street trails – these facilties are great, but they’re quite a bit different than cycle tracks.

I do not doubt that US engineers are perfectly capable of designing any type of facility they set their minds to. We are seeing a number of creative bikeway designs emerging from US cities that have figured out ways to navigate some of these questions. I will be the first to tip my hat to the first US engineers and agencies that are able to implement the grace of Dutch cycle tracks. In the mean time, my hunch is that US cities will have the most success if we keep our cycle tracks at street level.


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14 Responses to All the Best US Cycle Tracks are Street Level

  1. Brendon Slotterback
    Brendon Slotterback May 29, 2013 at 9:13 am #

    I notice you didn’t mention Washington Ave once in this post, but clearly there are some concerns here about where a cycletrack would be in that facility. Their designs seem to show something that looks to be at sidewalk height, not street height.

    Besides the ramps, which I agree would be annoying/dangerous for the cycletrack, my main concern is pedestrian-cyclist interaction. With a cycletrack next to a sidewalk at the same level, I imagine many more bad interactions and crashes. We’ve long recognized this in our off-street trails, which almost all have lanes for cyclists and pedestrians separated by a grassy median, trees, grade, etc.

  2. Walker May 29, 2013 at 10:19 am #

    Great post.

    Many women I’ve talked to do feel much safer mid-block on a path separated from faster traffic by distance and objects. The faster the traffic the more separation they desire. This may be critical in getting some portion of the average population cycling. And even for the more daring among us, this separation, Netherlands the gold standard, provides for a much more pleasant experience.

    I agree with you though that intersections are by far the most critical element. Something I don’t see in the photo’s above is management of turning motorists and adequately providing visibility of cyclists to turning motorists. That’s one thing that the dutch design does very well. They also carry cycle tracks across many mid-block and other intersections at cycle track height producing an inch or so speed table that causes motorists to be a bit more mindful.

    This still leaves the issue of right turns at speed – red or green making little difference, particularly on slip lanes. And left turns squeezing in between motor traffic with no regard to the cyclist or pedestrian in the crossing.

    One advantage to curb height or placing a curb between a cycle track and traffic lanes is reduction of debris thrown on to the cycle track.

    • Anna May 30, 2013 at 10:05 pm #

      I’m really confused about what being a woman has to do with this… I know plenty of guys that are pretty chicken about the same thing.
      Anyhow, personally the only part of street-level paths that bother me are the parked cars (just one extra thing to try and predict–i.e. if someone is going to clothesline me with their door). The clearly delineated lane is also a plus (for some reason the green highlighting in the lane is a significant comfort, almost to the degree of a sidewalk-level track)

      • Reuben Collins
        Reuben Collins May 31, 2013 at 9:14 pm #

        To clarify, there need not be any relationship between elevation and proximity to parked (or moving cars). A separating median between bikes an parked cars may be as wide as desired.

      • Walker June 1, 2013 at 8:22 am #

        Anna, this is what I’ve heard very consistently from women and what these women have stated is that ‘women don’t like riding near traffic’. In polling my suburban neighborhood about transportation cycling there is also a fairly clear divide of men wiling to ride to a local cafe on our busy car-centric roads and women saying ‘no way’. Some of this may be women being honest and men acting macho? On the other hand, the overwhelming majority of commuters on bikes are indeed men.

        However, I do agree with you. There are numerous men and women who don’t mind riding with traffic as well as both who won’t ride unless they have completely segregated cycleways.

        This is a tough issue. Please help me out. Should we completely ignore gender? Should Julie Hirschfeld not have opened AdelineAdeline which she says she opened specifically for women? Should there be no articles or conferences focused on how to get more women cycling?

        We can probably achieve fairly high rates of cycling with just bike lanes rather than segregated bikeways but these would likely be filled with many more men than women – should we do that?

      • Bill Lindeke
        Bill Lindeke June 1, 2013 at 4:02 pm #

        I agree with Anna here. Because bicycling in the US has been historically dominated by men, many narratives have tended to assume that certain kinds of riding (vehicular, in traffic) are “male” styles or preferences. But I think that there are many people who don’t like riding in traffic, and these groups includes bicyclists of diverse class backgrounds, genders, ages, and races. I tend to shy away from using gender as a placeholder for all these differences and preferences (e.g. language that says women are an ‘indicator species’ or something).

  3. Alex Cecchini
    Alex Cecchini May 29, 2013 at 2:42 pm #

    Great post. I think what is often forgotten when putting together cross sections for streets, whether they’re multi-way boulevards, “complete streets”, or some odd combination, is the intersection design, especially as it pertains to bikes and peds.

    The picture you posted of the Dutch design with biscuits looks very similar to what could be done with a Woonerf layout (see Matt’s post for Minnehaha) where parking and slip/bike lane are inside the median. My take is the area denoted for bikes and slip lane vehicle traffic is slightly dropped down vs the sidewalk (2-3″, as the Copenhagen example shows). This gives the subtle demarcation of space (bikes/cars wil be coming here) while also keeping the entire area from building face to median a pedestrian zone (slow speeds, shared space). When the bike/slip lane approaches the intersection, the slip lane is kicked out to the moving traffic lanes while the bike lane continues on straight, ramping down the rest of the 4-6″ to both separate it from the sidewalk and meet up with the street-grade at the intersection.

    http://www.flickr.com/photos/89584720@N08/8742175308/

    The green area at the intersection between the 5′ median and sidewalk is at street grade, while back in the slip lane area they are only 2″ lower than the sidewalk and 5′ median. The median then drops 8″ down to the street grade.

    What are your thoughts?

  4. Matt May 29, 2013 at 4:17 pm #

    http://www.youtube.com/watch?v=FlApbxLz6pA

    This way, you can have bicycles be at street level but also be protected. You’ll have to move walkers and the car stopping line back a few feet, but it should still work fine.

  5. BB May 29, 2013 at 7:37 pm #

    Examples of elvated sidepaths.

    Brooklyn Center

    http://www.youtube.com/watch?v=zplpZIJ2IlA

    Fridley
    http://www.youtube.com/watch?feature=endscreen&NR=1&v=tob3bwn_hjg

    Crystal
    http://www.youtube.com/watch?v=Z4Mgxr4QlCM&feature=endscreen&NR=1

    Maple Grove
    http://www.youtube.com/watch?v=ZAxQI9lRzLE

    Minneapolis
    This bike lane diverts you onto the sidewalk

    http://www.youtube.com/watch?v=QH_SF9KH0Ec

    And my analogy of a sidepath that is elevated.

    • Bill Lindeke
      Bill Lindeke June 1, 2013 at 4:33 pm #

      I’m guessing you mean “analysis”?

    • Xan June 13, 2013 at 9:09 am #

      That is scary. Also, watch out for deer at the end of the video.

  6. Xan June 13, 2013 at 8:51 am #

    See this video to see how the Dutch do it.

    http://youtu.be/FlApbxLz6pA

    Personally I prefer to be not in the street whenever possible. I also cringe when I see I child or someone with a child on their bike trying to navigate American bike paths as if they are traffic equal to cars. It is madness. If you are young, healthy and an experienced biker, paths on the road are not that big of a deal most of the time. But if paths are to be for everyone, we cannot continue to pretend that a bike is a vehicle. Many times it is just a fast pedestrian.

    Maybe it is hard for Americans to imagine sidewalks and bike paths at the same level because sidewalks are so narrow here. But they do not have to be that narrow. Curbs can be moved. Narrowing the road, even while maintaining the same amount of space for cars, will calm traffic. A bike path painted on the road gives drivers a sense of more space which causes them to drive faster. Look at the south bound path on the 19th Ave bridge. To the driver it is like an emergency lane, making the bridge more like a freeway to them. Raise it on a curb, use different paving, visually narrow the road and it will be safer.

    I have had a bike in Netherlands before and I have to say it was nice being able to bike without being in the same mental state as a squirrel in a dog park.

    There are very few places that are enjoyable to bike in America that are not off the road. Looking for examples in this country would seem to be fruitless. It would be better to be the example in this country, in which case we need to look overseas where biking is enjoyed by everyone, not just the hard core.

    • Xan June 13, 2013 at 8:58 am #

      A follow up to the above video, showing theory in practice.

    • Matt June 13, 2013 at 12:34 pm #

      haha, Xan, that’s the same video I posted two weeks ago, albeit with a better context and description from you :)