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Wisconsin Traffic Operations and Safety Laboratory

The WisTransPortal System

The WisTransPortal system serves the computing and data management needs of the Wisconsin Traffic Operations and Safety (TOPS) Laboratory. The project scope includes support for ITS data archiving, real-time traffic information services, transportation operations applications, and transportation research. Learn more.

Community Maps - Traffic Safety for Wisconsin

Community Maps logo  Zero in Wisconsin logo   TOPS Lab logo
Community Maps Virtual Office Hours

We are excited to announce the launch of Community Maps Virtual Office Hours on the second Monday of each month at noon, starting July 8th. Please join us to learn about recent updates, provide feedback, and ask any questions that you may have. Information and Zoom details are available here: Office Hours Flyer.

Enter Community Maps

Community Maps provides Wisconsin's law enforcement agencies and county Traffic Safety Commissions with a statewide map of all police reported motor vehicle crashes from 2010 to the current year. Fatal crashes are included from 2001. Crashes are updated on a nightly basis using geo-coded locations from the Wisconsin Department of Transportation DT4000 police crash report. The Community Maps system was designed to support and enhance traffic safety planning, resource allocation, and decision support at the local level, in particular through the regular review of crashes at each of the county quarterly TSC meetings.

Community Maps is hosted at the University of Wisconsin-Madison by the Wisconsin Traffic Operations and Safety (TOPS) Laboratory in collaboration with the Wisconsin Department of Transportation (WisDOT) Bureau of Transportation Safety (BOTS).

NewNew: For crash data analysis requests, please email the BOTS Program and Policy Unit at

For Community Maps technical support, please email

To request access to Community Maps Advanced features, please use the WisTransPortal online User Account Request Form.

Additional contact information:

Randy Wiessinger
Statewide Law Enforcement Liaison
Bureau of Transportation Safety (BOTS)
Division of State Patrol, WisDOT

Sam Noyce
Community Maps System Developer
Traffic Operations and Safety (TOPS) Laboratory
UW-Madison Department of Civil and Environmental Engineering

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