After one hour and a half the British Thirty Corps takes the Grave bridge. At the time the tanks roll over the bridge, you can see a traffic-light in the base of the screen.

After two hours the Grenadier Guards capture the Nijmegen bridge. In the background you can see several traffic-lights.

Although traffic-lights existed in the Second World War, I think they wouldn't have worked after more than four years of occupation by the Germans.