national highway traffic safety administration data-driven approaches to crime and traffic safety...
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National Highway Traffic Safety Administration
Data-Driven Approaches to Crime and Traffic Safety (DDACTS)
Shannon PurdyNHTSA Region 2
Deputy Commissioner Christine CoulterPhiladelphia Police Department
Safer drivers. Safer cars. Safer roads. 2
Crash fatalities, 1990 - now
Safer drivers. Safer cars. Safer roads. 3
What is DDACTS?
DDACTS is an operational model that uses the analysis of location-based crash, crime, calls for service and enforcement data to support effective and efficient deployment of resources.
Safer drivers. Safer cars. Safer roads. 4
DDACTS Goal
Reduce the incidence of crime and crashes in our
communities.
Reduce social harm.
Safer drivers. Safer cars. Safer roads. 5
Why use DDACTS?
Crashes and crime often occur in close proximity
Crime/dangerous behavior often involves motor vehicles
Crashes significantly drain agency resources
Vehicle stops yield valuable intelligence
Agencies have increasing demands/decreasing resources
State highway safety programs AND fund recipients must
deploy crash countermeasure resources based on data
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Safer drivers. Safer cars. Safer roads.
Philadelphia Police Department
140 square miles approx. 1.6 million people
21 police districts
6,250 sworn & 800 civilian personnel
Safer drivers. Safer cars. Safer roads.
Plan For Pilot Initiative
Utilize Traffic on “dark nights”
Focus on 25th District
Target areas of high traffic
Enforcement of traffic laws, DUI checkpoints, car stops
Safer drivers. Safer cars. Safer roads.
Philadelphia’s 25th District
High levels of social harm
Enthusiastic participation from district leadership
Safer drivers. Safer cars. Safer roads.
Density of Crashes vs. Violent Crime occurring between
Jan 2008 and July 2011, Tuesdays between 7-11pm
Crashes (3700 Series)
Violent Crimes (100, 300, 400 Series)
Medium HighLow
Safer drivers. Safer cars. Safer roads.
Density of Crashes vs. Violent Crime occurring between
Jan 2008 and July 2011, Thursdays between 7-11pm
Crashes (3700 Series)
Violent Crimes (100, 300, 400 Series)
Medium HighLow
Safer drivers. Safer cars. Safer roads.
Monitoring and adjusting
Challenges to initial implementation – Occupy Protests– Events and Man Power
Are we measuring this correctly?– Tickets and Citations not being tracked– Other units of measure not being taken into
account– Measuring contacts and community
involvement
Safer drivers. Safer cars. Safer roads.
DUI Checkpoint
April 20, 2012: Friday night
Checkpoint at C and Allegheny
19 DUIs
Safer drivers. Safer cars. Safer roads.
…and other results
2,300 Packs of Heroin and 100 Percocet
Safer drivers. Safer cars. Safer roads.
Results from Pilot
Percent change over first six months of implementation compared to the three-year
averageViolent Crime-24%
Traffic Crashes-7%
Impounded Vehicles31%
Police Stops 5%*
Social Harms Enforcement
* PPD’s Police stops were down significantly citywide in 2012
Safer drivers. Safer cars. Safer roads.
Data Driving Philadelphia
Safer drivers. Safer cars. Safer roads.
Mapping Activity
Safer drivers. Safer cars. Safer roads.
Mapping Enforcement
Safer drivers. Safer cars. Safer roads. 19
Shannon PurdyNHTSA Region 2
Christine CoulterPhiladelphia Police Department
Thank you!
To learn more…