Avoid driving on the Perimeter Highway on Saturday if you can. A convoy of as many as 200 trucks could make driving slow.

The World’s Largest Truck Convoy is a project of the Law Enforcement Torch Run, which raises money for the Special Olympics. The convoy started at 11:00 a.m. from  the Oak Bluff Recreation Centre.

Last year’s convoy involved 170 trucks and raised $55,000.