SEMCOG’s Travel Demand Forecast Model estimates current and forecast motorized vehicle travel volumes, speed, and patterns in Southeast Michigan. The data is used to inform policies, develop projects, and identify opportunities for collaborative initiatives contained in SEMCOG’s long-range transportation plan.

For day-to-day operations, the travel model adds value to SEMCOG members by:

  • supporting master plan updates,
  • analyzing traffic safety improvements,
  • considering economic development impacts, and
  • determining air quality conformity.

Travel modeling is both required and essential to planning efforts at SEMCOG. This model is constantly refined. Data inputs such as population, employment, and households are updated to reflect current demographics. Data outputs compare favorably with those of other regional area models of the same size.

Request Travel Model Data (pdf, 61KB)
Model Development (pdf, 308KB)

Household Travel Survey

SEMCOG, the Southeast Michigan Council of Governments and the Michigan Department of Transportation (MDOT) are kicking off a yearlong household travel survey that will provide vital information necessary to set transportation priorities for the next 20 years. The survey, Mi Travel Counts, will be conducted by Westat, a nationally recognized research firm, for SEMCOG and MDOT.

Transportation agencies will use the data to better understand changes in household travel and project citizens' future travel needs. The survey isn't new; the same type information was last collected by MDOT and SEMCOG in 2004-2005, and updated by MDOT in 2009.

Stay Informed


Additional Materials

Developing Regional Solutions
SEMCOG is a regional planning partnership of governmental units serving 4.7 million people in the seven-county region of Southeast Michigan striving to enhance the region's quality of life.