HAS over Decarie expressway, busy traffic. CS of cars speeding across frame. Shots of traffic under Decarie-Metropolitan Boulevard Interchange. Several TRAVELLING SHOTs of downtown Montreal from car moving into Montreal via Bonaventure Expressway. Several shots of heavy traffic on Metropolitan Boulevard, stop and go traffic. HAS of traffic, police and motorcycle on side of road. HAS of heavy traffic on Decarie Expressway, much steam, smoke in the air.