The Brief MnDOT will test speed cameras at two construction work zones during a one-month pilot program. The Minnesota Department of Transportation will soon begin testing speed cameras at two construction work sites. MnDOT testing speed camera programWhat we know:MnDOT officials say they will launch a one-month pilot test of speed cameras at two construction work zones in the state. What they're saying:Officials say over the past five years there have been 11,000 crashes in Minnesota work zones. When you approach or enter a work zone, please slow down, read and follow the signs.