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A Proud History

Since 1967, the Traffic Improvement Association of Michigan (TIA) has made the availability of accurate and timely traffic crash data a high priority.  With the advancement of computerized technology, TIA has made considerable progress.  In 2009, TIA upgraded its Traffic Crash Analysis Tool (TCAT).  The new version of TCAT provides increased speed, better accuracy, and a number of additional features that enhances the user's ability to to promote traffic safety in Michigan.  TCAT further demonstrates TIA's ongoing commitment to reduce human and economic losses caused by traffic crashes, and improve mobility in Michigan.

TCAT uses traffic crash data from the State of Michigan, which is derived from the Michigan Traffic Crash Report form (UD-10).  This form is completed by all Michigan law enforcement agencies for every reportable traffic crash occurring in the state.  TCAT receives a weekly update of data from the State of Michigan, which guarantees that TCAT users are able to analyze the most, current, up-to-date crash data.  TCAT crash data is available for the entire State of Michigan, and contains data from 2000 to present.

No personal data is contained in the TCAT statewide crash database, and there is no way to view personal information on any TCAT report.

About TCAT

TCAT is a comprehensive, web-based traffic crash analysis program for the detailed study of traffic crashes at any location within the state of Michigan.  TCAT is coordinated and funded by TIA, and the computer programming duties are conducted by Midwestern Software Solutions (MS2).  MS2, which is based in Ann Arbor, developed TCAT based on the expert advice of TIA’s traffic engineer and the Road Commission for Oakland County.

TCAT includes the following components:

  • Searching for crash locations or crash specific data.
  • Viewing crash statistics.
  • Interacting with the map to obtain detailed crash statistics.
  • Creating reports of crash statistics.
  • Creating new crash locations.
  • Collision diagrams (a graphical drawing, which further illustrates the crash patterns evident at various intersections).
  • UD-10 report images.

Filtering Capability

TCAT provides an extensive filtering capability so that users can create their own unique traffic crash reports.  TCAT provides the user with numerous data fields to pick from and create their own specific reports. Some of the data items that can be selected are:

  • Alcohol/drug use
  • Day of week
  • Driver condition
  • Hazardous action
  • Injury type
  • Lighting
  • Occupant age
  • Position in vehicle
  • Restraint use
  • Road area
  • Road condition
  • Time of day
  • Traffic control
  • Type of crash
  • Type of vehicle
  • Vehicle activity prior to crash
  • Weather
 

How to Get Access

TCAT is available to TIA's member communities at no cost.  Engineering firms are able to purchase an annual membership for a fee.

Please contact TIA's Traffic Safety Specialist, Dominique Matich, at (248) 334-4971 for more information.

Available Reports

The following is a synopsis of a few reports that are available on TCAT:

  • Intersection Crash Report: Summary data of each crash at a user-selected intersection with the ability to create a collision diagram and mapping of these crashes. The user has the ability to produce reports based on extensive filtering of specific crash data.
  • Link Crash Report: Summary data of each traffic crash on a user-selected road segment with the ability to map these crashes. The user has the ability to produce reports based on extensive filtering of specific crash data.
  • Community Crash Report: Summary data of each traffic crash within a selected county, or community within any county. The user has the ability to produce reports based on extensive filtering of specific crash data.
  • Intersection Ranking Report: Ranking report of intersections within a selected county or community within any county. The user has the ability to produce reports based on extensive filtering of specific crash data.
  • Intersection Ranking Weighted Report (TIA member communities in Oakland County only at this time): Ranking report of major intersections within a selected community weighted by crash frequency, injury severity, and crash rate. The user has the ability to produce reports based on extensive filtering of specific crash data.
  • Link Ranking Report: Ranking report of major road segments within a selected community. The user has the ability to produce reports based on extensive filtering of specific crash data.
  • Link Weighted Report (TIA member communities in Oakland County only at this time): Ranking report of major road segments in a community weighted by crash frequency, injury severity, and crash rate. The user had the ability to produce reports based on extensive filtering of specific crash data.
  • Monthly Crash Summary Report: Summary report of injury traffic crashes and occupant injuries for a user-selected county or community within any county.

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Contact Info

Traffic Improvement Association
1827 N. Squirrel Road
Auburn Hills, Michigan 48326
1-248-334-4971 Office
1-248-475-3434 Fax
www.tiami.us