From Carmine Palombo, SEMCOG Director of Transportation Programs ▪ e-mail ▪ 313-324-3314
The condition of Southeast Michigan Roads continues to decline.
Approximately 4,000 miles (10,660 lane miles) of the region’s major roads were visually ranked
in 2008. Results of this survey indicate:
13 percent of the road network in good condition;
57 percent in fair condition; and
30 percent in poor condition.
The 2007 survey ranked:
18 percent of the road network in good condition;
55 percent in fair condition; and
27 percent in poor condition.
Survey data from the past five years (2004-2008) show a steady decline in the overall pavement
condition of the major roads in Southeast Michigan. Of particular concern is the fact that the
percentage of lane miles of roads rated poor has increased by three times, from 10 to 30 percent,
since 2004 (see graph below).
Road condition trends, 2004-2008, by percent of lane miles
The roads continue to deteriorate.
Gas tax revenues are declining in both the Federal Highway Trust Fund (HTF) and the
Michigan Transportation Fund (MTF) because of higher gas prices and people driving
less, motor vehicle fuel efficiency and hybrid vehicles, and the recession.
We have to find alternate ways to fund to necessary repairs of our transportation system,
or this trend will continue.
Source: SEMCOG’s extensive traffic count program, consisting of more than 27,000 traffic count locations
throughout Southeast Michigan. Data come from the Michigan Department of Transportation, county road
commissions, and local governments who have traffic count programs. Each year, SEMCOG receives counts from at
least 5,800 locations throughout the region. Query SEMCOG’s traffic count database at