Category: Cities

Links between pedestrian safety and crime

Chicago Pedestrian Plan

Safety item 20: Analyze the relationship between pedestrian safety and crime (download the plan)

The 2011 Chicago Pedestrian Crash Analysis identified a strong correlation between community areas with high numbers of pedestrian crashes and community areas with high crime rates. Correlation does not indicate causation and further study is necessary to understand this relationship and the potential broader benefits of pedestrian safety improvements. [From page 62 in the 2012 Chicago Pedestrian Plan.]

ACTIONS

Short Term

  • Identify and obtain funding for this study.
  • Identify a location for safety improvements and obtain data for the “before” conditions.

Mid Term

  • Design and implement pedestrian safety improvements.
  • Develop a pedestrian safety enforcement plan for the area for the duration of the project.
  • Analyze the effects on pedestrian safety and crime.

MILESTONES

  1. Initiate this study by 2013 and complete by 2015.

ADDITIONAL RESOURCES

National Highway Traffic Safety Administration. Data-Driven Approaches to Crime and Traffic Safety (DDACTS). 2011. [I don’t fully see the connection, but this reference was linked to a page on NYC Department of Transportation’s website.]

Pedestrian Crash Analysis

The summary report didn’t contain the word “crime”. The technical report contained 2 mentions, with an additional chart. They are quoted in the ordered list below. Download the summary report.

  1. In an examination of various factors including crime, income, race, language spoken, and Walk Score®, the strongest correlation found was between pedestrian crashes and crime
  2. Finally, crime statistics were compared to pedestrian crashes to determine if a correlation could be identified, using data from the Chicago Police Department (CPD) annual reports for 2005 through 2009. The annual reports include incidences of crime by Chicago Community Area (CCA). The statistics for the years 2005 through 2009 were averaged and compared to the aver- age number of fatal and serious injury pedestrian crashes over the same time period in each CCA. Of these factors, crime was the only variable that correlated to pedestrian crashes. Figure 1 shows the correlation between crime and pedestrian crashes was very high. However, there may be many variables responsible for this correlation.
  3. Figure 1: Crime vs. Fatal and Serious Injury Pedestrian Crashes by Chicago Community Area

Figure 1.

I have a few criticisms of this analysis: it lacks raw data; the data tables included in the technical report are of limited length, listing only the “top” items of any metric; the summary report lists many silly factoids; the maps are low resolution and of a limited scale – their design could be modified to improve their usefulness in communicating the crash frequencies of the marked locations. The analysis is reliable.

The technical report includes the state’s guide on how police officers are trained to fill out a crash report form. It also includes relevant crash reporting laws in Illinois. Download the technical report.

Special post for S.M.

Some reasons why the CTA doesn’t make its own mobile apps

Where’s the train?

“Twitter updated their app and now it sucks”. (Here’s some evidence.)

Have you heard that before? Thankfully there are tens – perhaps hundreds – more options to post to and read Twitter on your appy device.

The Chicago Transit Authority provides 1.7 million rides per day. A lot of passengers like to know where the trains and buses are. And it’s possible to know with many tools like Bus Tracker and Train Tracker, both of which are available through APIs, SMS, and websites.

Some people (eh, I can’t exactly point out who right now) have noted (complained?) that the CTA doesn’t make its own app for smartphones and tablets. I’m glad they don’t!

Here are more reasons why the CTA doesn’t make its own mobile apps:

  1. It would be racist of the CTA. (Pretty much everything the CTA does is racist according to someone but making an app would only be useful to those with compatible devices, so it’s probably more accurate to say income discrimination.)
  2. Bus service is getting cut but they’re spending money on making apps.
  3. There are 4 platforms to write apps for (at least 4 – not sure if any CTA passengers would demand Symbian or webOS).

The best reason?

Developers can do it better. So the CTA gives them the tools.

Is there a member of the ITE who will stand up against bad road designs?

Sharing the road is one place to start. Why should one on a two-wheeled, muscle-powered device pedal along side a garbage truck with blind spots? Wait, why does an automobile even have blind spots? This enormous right-turn lane is one example of “dangerous by design”. 

Update October 5, 2012: For a great example on why I cannot – and why you should not – support bad road designs is this story of a fatal bike crash on a major biking “commuterway” in Chicago. We must stop building narrow bike lanes to the left of parked cars and we can be done with this type of crash for good.

The infrastructure as we have it in Chicago and many other American cities cannot support any increases in bicycling. The operation and design of our infrastructure creates a finite limit for the number of people who will bicycle on it. I’m not talking about how many people can use it, but how many people want to use it.

We’ve seen infinitesimal growth in the bicycle’s mode share for commuting to work, so small that the growth might not actually be growth at all because all the reported increases are within the range of error (the Census Bureau being the collector and distributor of the data). Our infrastructure is not safe, and that is what inhibits an increase in bicycling riders and trips that the City of Chicago, its mayor, its council, its officially adopted plans, and its people, desire. Until our roads are made safe, the cycle growth will remain minuscule or non-existent. The only other significant factor in promoting cycling is high gasoline prices, but even as they remain high, the cycle growth (or spike, seen in 2008) hasn’t returned.

It’s a small group of people who are designing and maintaining our roads. And they are the first group of people we listen to when we say we want safe roads. Instead of the people who’ve actually built safe roads.

The ITE is the Institute of Transportation Engineers, and, like many organizations, has a code of ethics. In their Canons of Ethics document (.pdf), there are at least two sections that require members to stand against bad road designs.

Section 1: The member will have due regard for the safety, health and welfare of the public in the performance of professional duties.

Section 11: The member will guard against conditions that are dangerous or threatening to life, limb, or property on work for which the member is responsible, or, if not responsible, will promptly call such conditions to the attention of those who are responsible.

A study in Portland, Oregon, found that 60% of residents wanted to bike, but had concerns about safety.

These residents are curious about bicycling. They are hearing messages from a wide variety of sources about how easy it is to ride a bicycle in Portland, about how bicycling is booming in the city, about “bicycle culture” in Portland, about Portland being a “bicycle-friendly” city, and about the need for people to lead more active lives. They like riding a bicycle, remembering back to their youths, or to the ride they took last summer on the Springwater, or in the BridgePedal, or at Sun River, and they would like to ride more. But, they are afraid to ride. They don’t like the cars speeding down their streets. They get nervous thinking about what would happen to them on a bicycle when a driver runs a red light, or guns their cars around them, or passes too closely and too fast.

American roads are dangerous by design. It’s time to fire the people who design them that way.

Year after year, roads in Chicago are ripped up, repaved, and restriped in exactly the same way that existed before. Miles of missed opportunities for safer roads. This essay says nothing of the lack of police enforcement of traffic rules, for which there is little empirical evidence. The essay may be updated from time to time, but I won’t be noting each change.

An example of a better design: the buses and bikes don’t mix, and automobiles turning left cannot be passed by through-automobiles. Bicyclists are safer. 

See the Houten “Fietstransferium”, and other bikes and transit commentary

Video by Mark Wagenbuur, aka markenlei on YouTube. See his original blog post about it.

I’m going to take a wild guess and say that “Fietstransferium” means “bike transfer building”. It’s a structure underneath the train tracks at the Houten (in the Netherlands) main railway station (it has a secondary station on the same line a little bit south of the main one). You roll in directly from a car-free street in the center of a town, park your bike, and walk up to the platforms. Also available in the Fietstransferium are bike rentals (likely OV-fiets) and bike repair. It wasn’t open when I visited Houten in January 2011.

From the video (and from other sources) 60% of NS passengers arrive by bike. Good connections between bikes and trains helps maintain that access rate, but probably also helps increase it. Bike connections to major train stations in Chicago is woeful, even at the stations that are new enough to support a good connection. Let’s call Houten’s bike to train connection quality “roll in, walk 100 feet, service”: you roll into the bike parking area, and walk upstairs to your train (there’s even a ticket machine in the bike parking area). This differs from “roll on service” as that means you roll your bike into the train.

Chicago

The LaSalle Street Metra Station got an upgrade in bike connections this year when the “intermodal center” adjacent to it on Congress Parkway and Financial Place was added. It came with bike parking, an elevator, and a staircase with bike ramp. The station has other access points, which are very well hidden. Unguarded.

Well-placed bike parking
The LaSalle Street intermodal center. 

Northwestern (Ogilvie) Station lacks indoor and guarded bike parking, and any that’s available is far away from the tracks. The sheltered bike parking is very undesirable, dark, and dirty; I don’t recommend parking on Washington Street. Nor do I recommend parking on any of the sidewalks surrounding the station block.

Union Station is similar to Northwestern Station: all bike parking is unguarded and far from the tracks. Millennium Station. Same problems.

The nexus of bikes and transit is something I enjoy planning, and talking and writing about. Read my past articles on the subject. I’ve created the biggest and best collection of bikes and transit photos in the eponymous Flickr group. It’s an important part of the Chicago Bike Map app. You can load train stations on the map, search for them, and get information about when and how to board a train or bus with your bike. Coming soon is information on accessible stations (which have wide gate turnstiles making for self-service bike entry) and stations that aren’t accessible but have the same wide gate turnstiles (called TWA, or turnstile wheelchair accessible).

Additionally, none of these stations are accessible by good bike lanes. Only Union Station and Northwestern Station have adjacent bike lanes, and then only ones that are north-south (Clinton and Canal). As the Chicago Department of Transportation noted in its multiple presentations about the upcoming installation of the Union Station bus intermodal station, biking on Canal Street is not good and the bike lane will probably be reconfigured during the Central Loop BRT project. To summarize, the connection quality that Chicago’s downtown train stations provide is “confusing service”: where does one park? will the bike be safe? how does one get to the platform now?

Getting to Union Station

Biking on Canal Street outside Union Station. It has multiple entrances and access routes but which one is best?  Another photo from biking on Canal Street.

Near Northwestern Station, the Washington Street bike lane ends abruptly three blocks away at Desplaines Street. The Madison Street bike lane doesn’t reach Northwestern Station, nor would it be effective with its current design, as it would constantly be occupied by things that aren’t bicycles.

Speeding zone

Biking on Washington Street, a very wide fast street, whose bike lane ends very soon (in the middle ground) where then you find yourself competing for space with buses and right-turning cars. As soon as one is “competing” on a street, the street fails to provide good space for either mode. 

Harrison Street just south of the LaSalle Street Station is usually a good street to bike on, but it lacks the kind of bikeway infrastructure that attracts new people to transportation bicycling, and more trips to be made. (I’ve lately been thinking of ways to synthesize the argument about why protected and European-style bikeway infrastructure is necessary, so here goes: Bicycle usage will not increase without them.)

San Francisco

Bikes on Bart Pilot Aug. 3, 2012

Photo of a man walking with his bicycle in a BART station by San Francisco Bicycle Coalition. 

BART in the San Francisco Bay Area tested in August policy of having no bike blackout periods on Fridays. That meant people could bring their bikes on the trains at all times on Fridays in August, and not just outside rush periods. Showing their high level of attention planning and policy, the agency evaluated the program with a proper survey. There’s a meeting tomorrow with the BART Bicycle Task Force; Chicago’s Regional Transportation Authority should have such a group!