
SEMCOG also has a Traffic Volume map in the Map Gallery.
MDOT TRAFFIC MI DOWNLOAD
Click seasonal adjustment factors to download the factors.įor more information on traffic counts contact Chade Saghir. An estimated AADT is produced by multiplying the factors times the raw counts. These adjustment factors can be applied to the raw counts in Southeast Michigan. The factors were averaged from each of these locations, thus resulting in adjustment factors by year and month for each day of the week. These seasonal factors were developed using the Permanent Traffic Recorders (PTR) located in Southeast Michigan. Seasonal adjustment factors are used to calculate average annual daily traffic (AADT) from short duration vehicle counts. By clicking on a AADT hyperlink, you will leave SEMCOG’s website and will be directed to a more detailed report containing the AADT, Raw Traffic Count, and other information. AADT are traffic volumes that are adjusted by a month and day of week factor to account for seasonal variations in traffic. The initial search results show the most recent Average Annual Daily Traffic (AADT) for the given location for the stated year. Each count was taken during a continuous 24-hour period. Traffic counts in this database were collected and provided to SEMCOG by county road commissions, local communities in Southeast Michigan, the Michigan Department of Transportation, and by consultants specializing in traffic data collection. The Regional Traffic Counts Database is SEMCOG's central repository for traffic counts in the Southeast Michigan region.


The agreement is expected to help MDOT reduce the cost of operations, identify areas that benefit most from road improvements, and more accurately report the impact of transportation investments. MDOT will use INRIX’s services to monitor, measure, and manage the state’s road network. INRIX is a Washington-based company specializing in connected car services and transportation analytics. The Michigan Department of Transportation has selected INRIX for real-time traffic and mobility intelligence as part of a three-year agreement, INRIX announced Monday.
