DETROIT (AP) — Wayne State University researchers plan to study whether different freeway speed limits in Michigan for passenger vehicles and large trucks make roads safer as part of an effort to consider whether speed restrictions for larger vehicles should be scaled back, officials said Monday.

Peter Savolainen recently received a one-year, $175,000 grant from the Michigan Department of Transportation to review research, survey trucking industry groups, collect historical and new field data, and conduct a statistical analysis, the Detroit school announced.