SPRINGFIELD, Ill. (AP) -- Illinois transportation officials say they're gearing up for busy roadways this Memorial Day weekend and have a plan to reduce congestion.

The Illinois Department of Transportation announced Thursday that non-emergency roadwork will be suspended to improve traffic flow at the unofficial start of summer.

Transportation Secretary Ann Schneider says the move helps ensure safety with the increase of motorists expected on the roads.

The suspension starts 3 p.m. on Friday through midnight Monday.

Transportation officials are urging motorists to obey posted speed limits and that posted limits are still in effect for construction zones even if there's no construction in the works.