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.]
- Identify and obtain funding for this study.
- Identify a location for safety improvements and obtain data for the “before” conditions.
- 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.
- Initiate this study by 2013 and complete by 2015.
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.
- 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
- 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.
- Figure 1: Crime vs. Fatal and Serious Injury Pedestrian Crashes by Chicago Community Area
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.
About Steven Can Plan
I started this blog in 2007 as the writing assignment for an introductory urban planning class at UIC. It's about cities (mainly Chicago), GIS oftentimes, and transportation (mainly bicycling). Learn more about me, Steven Vance. I also write for Streetsblog Chicago.
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Chicago Bike Map App
The Chicago Bike Map app is a bike and street map stored entirely in your iOS device – no data connection required. The map is designed to look much like the City of Chicago's official printed and online bike map. The app works on iPhone, iPod touch, and iPad.
Highly Recommended Bike Products
The best value taillight. It has three red LEDs that alternate and provide extreme brightness. I have two of these.
Bells can be quite useful, especially to tell people in front that you're passing them. I like the ding-dong bell the best. It makes a solid DING and then DONG on the spring's return.
I've used this pannier to carry groceries, books, my laptop, clothing, anything. I like it because it's stylish (but also "normal" looking at the same time), stands up on its own, is extremely durable, and has the most universal attachment system: two hooks.
Instant City: Life and Death in Karachi by Steve Inskeep
I reviewed this book that the publisher sent to me.
Traffic: Why We Drive the Way We Do (and What It Says About Us) by Tom Vanderbilt
As someone who doesn't like driving, but believes that cars can be efficient in moving groups of people and goods, this is my favorite book.