Behold the Transport for London Traffic Collision Map

TFLmap
TfL’s crash map distinguishes between “serious” and “slight” collisions. Image: Transport for London

As City Hall staffers work on improvements to Vision Zero View, hopefully they’re taking cues from Transport for London’s collision map.

Launched last September, the TfL map “shows traffic collisions that resulted in personal injury and were reported to the police” from 2005 through 2015.

Some features of the TfL map that Vision Zero View doesn’t currently have:

  • Crashes are searchable by the severity of injury (“serious” or “slight”), whereas Vision Zero View lumps all non-fatal injury crashes together — this is important because the rate of serious injuries is considered a better measurement of street safety than the rate of fatalities or total injuries;
  • You can see fatal and injury crashes simultaneously, and icons for individual crashes vary based on injury severity, while on Vision Zero View fatalities and non-fatal injuries can only be viewed separately;
  • Summaries of individual crashes include vehicle types involved, the time of day each crashed occurred, and information on resulting injuries.

Streetsblog reader Robert Wright pointed me to the location where he was struck by a driver in 2009. The map described the crash like so:

On 04 February 2009 at 09:40:00 a collision occurred at Brixton Road junction with Groveway in Lambeth involving a light goods vehicle and a pedal cycle. An adult pedal cyclist was slightly injured.

One significant advantage of Vision Zero View, meanwhile, is that data is updated each month, while London only posts annual datasets. The current NYC map also includes info on street safety measures and speed limits, and categorizes injuries per square mile broken down by police precinct, city council district, and community district.

vzview
Vision Zero View’s traffic injury map shows specific crash locations…
tfl_zoomout
…while the TfL map clusters crashes together unless you zoom in to the tightest level.

Another superior aspect of Vision Zero View is that you can see specific crash locations even if you’re not zoomed in very far — you have to zoom out a few levels to trigger the “heatmap” mode — while on the London map, you have to go in tight to see individual crashes. It’s easier to get a sense of dangerous locations looking at the NYC map.

Still, there are very useful details in the data made public by TfL that NYC should emulate.

  • oriordan

    Just to add, TfL also make the source data available so it is possible to do your own data crunching if you don’t like the view presented by the website.

ALSO ON STREETSBLOG

Van Bramer Wants Better Crash Data on the City’s Vision Zero View Map

|
City Council Majority Leader Jimmy Van Bramer has introduced a bill to expand the city’s online publication of crash data. When City Hall launched Vision Zero View in November 2014, it was a major upgrade. For the first time, New Yorkers could see up-to-date information on where crashes happen, with data refreshed every month. But there’s a lot still […]

Crash Data Show NYC Is Losing Ground on Vision Zero

|
After a four-month hiatus, City Hall is again updating its Vision Zero View map with new crash data, and through the first six months of 2016, traffic deaths rose slightly compared the same period last year. Through the end of June, 111 people lost their lives to traffic violence, up from 107 in the first half of 2015. Drivers […]

DOT Unveils Interactive Vision Zero Map, But NYPD Data Still Incomplete

|
As the Transportation Alternatives Vision Zero for Cities Symposium got underway in Downtown Brooklyn this morning, DOT released an interactive map of traffic crashes, street safety projects and more. One piece that’s still missing, though: NYPD enforcement data. “Vision Zero View” maps injury and fatal crashes based on the latest available data, updated monthly, and […]

NYPD Still Doesn’t Investigate All Fatal Traffic Crashes

|
In 2013, Ray Kelly made the only significant traffic safety policy change in his exceptionally long tenure as police commissioner. Kelly promised to increase the staffing of NYPD’s Collision Investigation Squad — where, at the time, only 19 detectives were assigned to investigate crashes in a city with about 300 traffic deaths and 3,000 serious injuries […]

Advocates: Ethical Standards Demand Zero Tolerance for Traffic Deaths

|
Traffic deaths need to be treated as an ethical imperative to save lives, said representatives from Transportation Alternatives, the Drum Major Institute, and the medical community today at the public release of the new report, “Vision Zero” [PDF]. “It is simply unacceptable for people to die in traffic,” said T.A. Executive Director Paul Steely White, […]