In states, cities, and townships, traffic courts are courts of limit

Vehicle #1 skidded 50 ft before impact with a drag factor of 0.80, how far from impact was vehicle #1 when vehicle #2 first began to accelerate from being stopped?

If you cannot see clearly around your car 100 ft in all directions as you approach an intersection, you should: a. make sure you're driving in the center lane b. reduce your speed to 15 mph c. wait to turn until the next intersection

Traffic signals at expressway on-ramps use lights.