2022 Traffic Count (ADT) Collection

Average Daily Traffic (ADT) Count data is collected along Lapeer County Primary and Local Roadways on a 4-yr Rotation throughout the County.  When collecting data, air hoses are placed across the Roadway.  Vehicles cross the hose and create a puff of air which is sent into the counter unit.  Two (2) hoses are used on paved roads, one (1) hose is used on gravel roads. Typically we receive two (2) main comments when hoses are placed on the roadway: 1) Hoses mean Development is coming! or 2) Hoses mean this Gravel Road will be Paved!  Typically these rumors are not true.  We are completing the counts are part of the required data collection for Asset Management and to update Townships and residents on traffic pattern trends.


Funding source(s): Local Rd Heavy Maint, Primary Rd Heavy Maint

Location of roadwork:

2022 Year - Attica, Deerfield, Marathon and Mayfield Townships


When is the work being done:

Summer 2022

Description of work:

Annual Maintenance

Impact on Traffic:


Latest Updates

No items found

Project Contact

Beth Schroeder

Advisories & Detours

Data is collected beginning in May – Download 4-yr Rotation Map

First priority for data collection in 2022 is Attica Township – Download Attica Twp ADT Age Map