The clock is ticking until quitting time, when there will likely be a mass exodus from the city to soak up the last bits of summer.

And that always means police will be out in full force, focusing on what they call the "big four": agressive driving or speeding, drivers not wearing seatbelts, drinking and driving, and distracted driving.

They're also trying to enforce the "Move Over" law, which requires drivers to change lanes if they see an emergency vehicle on the side of the road if it's safe. If not, they should slow down. The fines are big for this one, too: up to $2,000 and three demerit points.

OPP Sergeant Dave Woodford says three people were killed on the roads last Labour Day Weekend and one on the water.

Sadly, so far this year, there have been 232 fatal car crashes on roadways.