Category: Transportation

#Space4Cycling: Chicago needs intuitive bike lanes and other street markings

Two bicyclists take different routes around this driver blocking the bike lane with their car

In this case at Milwaukee and Green, space was made and well-marked for cycling but no space was outlined for driving. The driver of the black car must pull up this far to see beyond the parked silver car. In the Netherlands they’ve come up with a solution that would work here: shift the green bike lane toward the crosswalk so that the motorist crosses the crosswalk and bike lane at the same time and has space to wait to turn left between the bike lane and the travel lane.

What does an intuitive bike lane or other street marking mean?

It means that the street user can reasonably (yeah) guess, and guess right, what they’re supposed to do.

For bicyclists in Chicago, the lack of bike lane markings that continue to the edge of an intersection (often demarcated at the stop bar) creates an unintuitive bike lane design.

At intersections, an intuitive bike lane design would mean that the bicyclist and the motorist know where and how to position their vehicles in respect to the other, even if there isn’t a car there yet, or there’s not a bike there yet. Many intersections in Chicago that have protected bike lanes do this; especially the ones with separate signal phases. And these intersections work really well for bicyclists: they stand safely away from motorists, and motorists don’t attempt to occupy these spaces.

Inverted sharrow

The “sharrow before and after the intersection because the city dropped the bike lane” is the most common “didn’t make space for cycling” problem. There was plenty of space to make for cycling here, and nearly every other “sharrow…” situation: it’s along the curb and it’s subsidized, curbside parking for drivers.

But currently at dozens, if not hundreds, of Chicago intersections where the bike lane drops before the intersection, you’ll see bicyclists behave and maneuver in several ways, none of which are accommodated by the street’s design.

Some people will bike between two lanes of cars to the front of the line, and when they get there, lacking a bike box or advanced stop line, they’ll stand with their bike in the area between the crosswalk and the stop bar. If the first car is over the stop bar, then people will usually stand with their bike on the crosswalk.

Riding north on Damen towards Fullerton-Elston

The sharrow painted on the pavement, and an accompanying sign saying, “shared lane – yield to bikes” are unintuitive because no one can occupy the same space at the same time, and the symbols don’t communicate who gets first right to a specific part of the road space. In the end, though, in a situation like this, I’ve never seen someone wait back this far on their bike, and many will consider riding on the sidewalk to get to the front. When they get there, though, they won’t find any #space4cycling.

Others will bike between a lane of cars and the curb to get to the front of the line.

New buffered bike lane on Halsted just ends

This is another version of the “sharrow before and after the intersection because the city dropped the bike lane”. Why’d they drop it in this instance? To make space for Halsted Street drivers turning right, and to push more drivers northward through its intersection with Clybourn Avenue.

Others will wait to the side of drivers, and other still will wait behind a line of cars, putting themselves at a major time disadvantage as the people who biked up to the front. Not to mention they’ll choke on more fumes.

Then, when the light turns green, motorists behave differently. Some will follow behind the first bicyclist, while others will try to pass but closely because they’re essentially sharing a lane side-by-side – this exerts a lot of mental stress on the bicyclist.

Where the city has built space that’s absolutely not to be shared (meaning it’s for the exclusive use by people bicycling), then the designs are substandard because they still allow or seem open to driving. Otherwise, though, space for cycling that’s “part time” is only usable space for those holding the most power and not for the people riding bikes who need it.

frankling at washington bike lane (composite image)

In this new design that built a “protected intersection” for bicyclists going north on Franklin and east on Washington Street, the bike space is still a drivable area. (Top photo by Kevin Zolkiewicz; bottom photo by Skip Montanaro)

These deficiencies in Chicago’s bike lane network are often the result of failing to make, or make well, space for cycling from space used for parking or turn lanes.

Bicycling on the Dearborn Street bike lane

Three years after the City of Chicago built the novel and well-used two-way cycle track on one-way Dearborn, this situation north of the track still exists. And somehow they expect drivers on a 4-lane road to travel at 20 MPH.

This is 2015 and we continue to “not make space for cycling” despite every policy that calls for making bicycling in Chicago safe and convenient so that more people will do it. It’s just that in the unwritten policies it says that you can implement that policy if it doesn’t impede driving*.

* The City of Chicago has built many road diets (a reduction in the number of travel lanes) in the last four years, and some before that. A few of these have worked well for bicyclists, like on 55th and Vincennes where they built protected and buffered bike lanes, respectively (and Dearborn through the Loop).

I put road diets in a note after “impede driving” because they’re only done where they also won’t make local traffic more congested on that street or an intersecting streets.

On the face of it, that’s exactly what many people believe they’ll do because a road diet removes or converts lanes and that’s seen as the same as reducing car capacity which will shift that car traffic to other streets. That pretty much doesn’t happen and the city only implements road diets on streets that have MORE capacity than is used.

How to extract highways and subway lines from OpenStreetMap as a shapefile

It’s possible to use Overpass Turbo to extract any object from the OpenStreetMap “planet” and convert it from a GeoJSON or KML file to a shapefile for manipulation and analysis in GIS.

Say you want the subway lines for Mexico City, and you can’t find a GTFS file that you could convert to shapefile, and you can’t find the right files on Sistema de Transporte Colectivo’s website (I didn’t look for it).

Here’s how to extract the subway lines that are shown in OpenStreetMap and save them as a GIS shapefile.

This is my second tutorial to describe using Overpass Turbo. The first extracted places of worship in Cook County. I’ve also used Overpass Turbo to extract a map of campgrounds

Extract free and open source data from OpenStreetMap

  1. Open the Overpass Turbo website and, on the map, search for the city from which you want to extract data. (The Overpass query will be generated in such a way that it’ll only search for data in the current map view.)
  2. Click the “Wizard” button in the top toolbar. (Alternatively you can copy the code below and paste it into the text area on the website and click the “Run” button.)
  3. In the Wizard dialog box, type in “railway=subway” in order to find metro, subway, or rapid transit lines. (If you want to download interstate highways, or what they call motorways in the UK, use “highway=motorway“.) Then click the “build and run query” button.
  4. In a few seconds you’ll see lines and dots (representing the metro or subway stations) on the map, and a new query in the text area. Notice that the query has looked for three kinds of objects: node (points/stations), way (the subway tracks), relation (the subway routes).
  5. If you don’t want a particular kind of object, then delete its line from the query and click the “Run” button. (You probably don’t want relation if you’re just needing GIS data for mapping purposes, and because routes are not always well-defined by OpenStreetMap contributors.)
  6. Download the data by clicking the “Export” button. Choose from one of the first three options (GeoJSON, GPX, KML). If you’re going to use a desktop GIS software, or place this data in a web map (like Leaflet), then choose GeoJSON. Now, depending on what browser you’re using, a couple things could happen after you click on GeoJSON. If you’re using Chrome then clicking it will download a file. If you’re using Safari then clicking it will open a new tab and put the GeoJSON text in there. Copy and paste this text into TextEdit and save the file as “mexico_city_subway.geojson”.
Overpass Turbo screenshot 1 of 2

Screenshot 1: After searching for the city for which you want to extract data (Mexico City in this case), click the “Wizard” button and type “railway=subway” and click run.

Overpass Turbo screenshot 2

Screenshot 2: After building and running the query from the Wizard you’ll see subway lines and stations.

Overpass Turbo screenshot 3

Screenshot 3: Click the Export button and click GeoJSON. In Chrome, a file will download. In Safari, a new tab with the GeoJSON text will open (copy and paste this into TextEdit and save it as “mexico_city_subway.geojson”).

Convert the free and open source data into a shapefile

  1. After you’ve downloaded (via Chrome) or re-saved (Safari) a GeoJSON file of subway data from OpenStreetMap, open QGIS, the free and open source GIS desktop application for Linux, Windows, and Mac.
  2. In QGIS, add the GeoJSON file to the table of contents by either dragging the file in from the Finder (Mac) or Explorer (Windows), or by clicking File>Open and browsing and selecting the file.
  3. Convert it to GeoJSON by right-clicking on the layer in the table of contents and clicking “Save As…”
  4. In the “Save As…” dialog box choose “ESRI Shapefile” from the dropdown menu. Then click “Browse” to find a place to save this file, check “Add saved file to map”, and click the “OK” button.
  5. A new layer will appear in your table of contents. In the map this new layer will be layered directly above your GeoJSON data.
Overpass Turbo screenshot 4

Screenshot 4: The GeoJSON file exported from Overpass Turbo has now been loaded into the QGIS table of contents.

Overpass Turbo screenshot 5

Screenshot 5: In QGIS, right-click the layer, select “Save As…” and set the dialog box to have these settings before clicking OK.

Query for finding subways in your current Overpass Turbo map view

/*
This has been generated by the overpass-turbo wizard.
The original search was:
“railway=subway”
*/
[out:json][timeout:25];
// gather results
(
// query part for: “railway=subway”
node["railway"="subway"]({{bbox}});
way["railway"="subway"]({{bbox}});
relation["railway"="subway"]({{bbox}});
/*relation is for "routes", which are not always
well-defined, so I would ignore it*/
);
// print results
out body;
>;
out skel qt;

I grew up in the suburbs and it shows in early drawings

Vanceville 3 of 13

This panel has the light rail station next to an office complex that had the United Airlines headquarters and the office for “Steve Vance Enterprises – Western Region”.

I lived in suburbs until I was 22. The suburbs of Houston, of San Francisco, and of Chicago.

And from when I was 11 years old to about 15 years old I drew a municipality called “Vanceville” (and “Vancin” at one point) on 13 adjoining panels, each a standard size grade school poster. I started in fifth grade, within a couple of months of moving to Batavia, Illinois.

The first panel was drawn on the backside of a poster that displayed my study for class that counted cars on my street categorized by their manufacturer.

The suburban pattern of development was all I knew – and it really shows. I didn’t make it into the respective city centers that often, and when I did it was mostly by car. I think I drew the ultimate suburb of NIMBYs.

I don’t support this kind of development. Back then I thought I was designing the best city. I had no idea that what I was drawing wasn’t a sustainable way to develop places where people live.

You can see how four panels adjoin.

You can see how four panels adjoin.

I mean, just look at all the massive parking lots I drew. I seriously thought that that was how cities should be designed. I didn’t know that they paved over natural areas and caused dirty water to run off into the river I drew.

There are no multi-unit buildings. In fact, each single-family house is built on a huge lot. I gave each house a big garage, writing explicitly “2 + 1” and “2 + 1/2”.

I drew townhomes, a denser housing style than single-family, because I had a few friends who lived in them. This panel has my house in the lower-left corner.

Sidewalks are rare, but they become more prevalent in later design phases. You can forget bike lanes, but you may be lucky and find a bike path, again, in a later design phase. Those phases are also distinguished by smoother lines, fewer stray markings, and a lighter touch of the pencil.

People have to drive to the parks. Strip malls abound. Many of the shops are named for real businesses in Batavia.

Oh, wait, I drew in light rail tracks and stations. But I didn’t draw them because I knew or thought transit was a good thing. None of the places I lived had it. I drew the light rail because I loved trains.

Vanceville was so oriented to driving that some of the road lanes had “ATM” imprinted where a right-turn arrow would be, to signify that there was an upcoming turn off for a bank drive-through, with two lanes that had only ATMs. Even “Steve Vance Enterprises – Western Region” was connected to a 5-level car park.

There are just so many roads. I drew what appear to be interchanges between two “connector” roads within a residential neighborhood! That same panel seems to have as much asphalt as any other surface, be it developed or grass or water.

I’m not surprised this is the kind of city I drew.

If I still drew, the outcome would be completely different. It would probably look like a mix of Rotterdam, Madrid, and Houten.

What else do you see in the drawings? View the full album.

Vanceville 5 of 13

I drew these at a time when I was also obsessed with spy stories, which explains the CIA building.

Transportation infrastructure is for more than transportation’s sake

Transportation infrastructure should be designed for more than carrying people through places. It also needs to be about carrying people to places, because transportation is for moving people as much for commerce as it is for being social.

The Dutch consider “social safety” when designing and redesigning streets (they’re constantly upgrading streets, roads, and entire neighborhoods to standards that seem to be frequently updated).

Mark Waagenbuur posted a new video this week showing a new tunnel under Amsterdam Centraal, the main train station in Amsterdam, and he highlighted several of its social safety features.

The screen grab I embedded above – and posted on Twitter where it got a lot of shares and likes – shows an aspect that’s common across all cycling facilities in built-up areas: it’s wide enough to ride side by side with your friend, mother, or lover, with still enough room on your left for people to pass you in the same lane.

Another aspect of this tunnel is that it has sound-absorbing panels. Often tunnels have a disturbing echo that inhibit comfortable communication – my new home office has an echo and it makes it hard to have conversations on the phone here because I hear an annoying feedback. The communication is important to be able to hear people cycling with you, but also to hear what other people are doing.

The tunnel has a final feature that supports social safety: clear, wide, and open sight lines. Not just from end to end, but also to the sides. It’s hard to hide around the corner because the breadth of vision is so wide that you would see someone lurking in the corner.

For Chicagoans who use one of the many old tunnels under Lake Shore Drive connecting the “mainland” to the nation’s most popular trail along Lake Michigan, the feeling of claustrophobia and invisibility of what’s around the bend is too common. New tunnels, which I prefer to bridges because you go downhill first, should be a priority when the State of Illinois rebuilds Lake Shore Drive north of Grand Avenue in the next decade. This is what those tunnels look like; sometimes they have mirrors.

We can sell ads on the Lakefront Trail underpasses, but they're still shitty to walk through

People want more walkability and property developers can make it happen

Columbus Commons

The Columbus Commons in the tationty center. Photo by Brandon Bartoszek

This is my favorite part of Sam Schwartz’s book “Street Smart” so far. You’ll find it on page 117 following a discussion of Walk Score, a tool used mostly by realtors that measures “walkability” of any place in American cities based on the location and diversity of services, shops, and amenities nearby.

Every way you slice the data confirms that what all the polls say is true: people want more walkability.

Why, then, is there so little of it?

Why is there such a mismatch between the supply of, and the demand for, walkable neighborhoods?

Is it because, as one observer wrote, “Americans would like to live in places that don’t really exist”?

Do you live in a walkable place? Answer, and then check your Walk Score. I’m curious to know if they match.

Schwartz answers these questions with “not really”.

They want to live in places that do exist, but there are far too few of them.

Schwartz mentions that the housing prices in the most walkable cities – San Francisco, Washington, D.C., and New York City – are so expensive, but being walkable is what makes them the “coolest” cities.

Higher Walk Scores positively correlate with higher housing prices, “which is a problem”, Schwartz says.

[It’s] also an opportunity. By definition, only a few neighborhoods can be the coolest places to live. But that doesn’t mean we can’t make everywhere cooler.

Many pages later Schwartz describes how one city attempted to get property developers to make their proposed buildings or complexes more receptive to walking and biking (active transportation).

Columbus, Ohio, needed to lose some body weight. The city’s sprawling nature contributed to 59 percent of adults being obese or overweight, and 38 percent of children in the third grade (here’s the citation).

The Columbus Healthy Places program was formed in 2006 and implemented by the transportation and public health departments. Here’s one of the strategies they undertook to affect the built environment.

[The transportation and public health officials] persuaded the [buildings] department to grant them an opportunity to comment on all requests from developers to rezone a particular bit of land.

With that opportunity, Schwartz explained on page 133, they proposed that developments with shopping centers, bus stops, schools, park, libraries, drugstores, or grocery stores, within half a mile of residences, “include a suite of active transportation elements” like bike parking, connections to bike lanes and trails, and wider sidewalks.

It worked, he said. Before the program only seven percent of projects requesting a zoning change included active transportation elements, but after it was reviewed by the Columbus Healthy Places managers it “jumped” to 64 percent.