Traffic Count Program

Why are Traffic Counts important?
Traffic counting is an important transportation data collection function.  Traffic-count data is a vital component of the transportation project selection process because traffic count numbers can assist officials in determining transportation project needs.  The MACOG traffic-count program coordinates the collection of intra-/inter-jurisdictional traffic-count data, and as-needed traffic-count data.  A traffic-count database, dating back to 1976, is also maintained by MACOG staff. 

How to view Traffic Counts?
You can view traffic counts in Elkhart, Kosciusko, Marshall, St. Joseph, Fulton, La Porte, and Starke Counties, IN.  Open the Traffic Count Map in Google Maps to view the most recent as well as historical traffic counts at the more than 3,500 traffic count sites.  You can also download the traffic counts *.kmz file into Google Earth (click here to install Google Earth on you computer).

How often are traffic counts completed and for what jurisdictions? Annually the MACOG develops a Traffic Count Report which includes the regions "functionally classified roads".  The MACOG region has more than 3,500 traffic count sites on a three-year count cycle--each site is counted once every three years.  These sites include state roads and local roads. All counts are conducted for a forty-eight hour duration. 

MACOG also maintains the Highway Performance Monitoring System (HPMS) database for the region.  The HPMS provides statistical data used by Congress and the U.S. Department of Transportation in determining funding formulas for road and highway construction.   The Traffic Count Report is completed for the following jurisdictions:  Elkhart, Kosciusko, Marshall, and St. Joseph, Counties.  Sub-divisions and other local roads are generally not counted. Besides also counting roads in Elkhart, Kosciusko, Marshall and St. Joseph Counties, MACOG also conducts counts on the state highways in Fulton, La Porte, and Starke Counties.


What is included in the Traffic-Count Report?
The traffic-count reports generated provide the annual average daily traffic (AADT) amount, which is identified by the year the count was taken.

The MACOG traffic-count data is capable of providing vehicle classification, speed, and weather conditions.  Such data are classified by time of day and day of week, and such classifications can be used to formulate peak-hour data.  Special traffic-counts may also be included in the report.

The traffic counts are adjusted to compensate for the seasonal changes in traffic.  Traffic counts are based on a 24-hour average for both directions since the counts are taken over a 48 hour period.

Shown below is a sample page from the 1997 Traffic Count Manualtraffic3.jpg (37948 bytes)

Who to contact?
MACOG will provide traffic-count information over the phone as long as the information that is being requested is not extensive. If you are requesting large amounts of traffic-count information, then MACOG suggests that a traffic-count manual be purchased. Count station maps for St. Joseph,  Elkhart and Marshall Counties are also available.  Traffic counts are also available on the for Elkhart and St. Joseph Counties.
Additionally, Kosciusko and Marshall County traffic counts can be viewed in Google Earth with St. Joseph and Elkhart counts. Once you download the Google Earth file, verify that the extension is *.kmz (Internet Explorer will save the file as a compressed ZIP file).

Traffic Count Manual $45.00
St. Joseph County Map $8.00
Elkhart County Map $8.00
Marshall County Map $8.00

Please make all requests for materials in writing, accompanied with the appropriate payment.  MACOG can accept the correct change or a check.  We do not accept credit cards or billing.

For traffic count information, please contact MACOG at (574) 674-8894 or e-mail us at