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Tailgating is a common cause of traffic crashes. Nobody likes a tailgater. Wisconsin law is clear on tailgating: "The operator of a motor vehicle shall not follow another vehicle more closely than is reasonable and prudent, having due regard for the speed of such vehicle and the traffic upon and the condition of the highway. Also, look for an escape path to the side when you are preparing to slow down or stop.

Finally, pay attention to what is happening in the left-rear and right-rear areas behind you Areas 4 and 5 of the space management diagram. You need to know how close other vehicles are to your vehicle and how fast they are traveling. These areas are blind spots, always check them by turning your head before changing lanes. Avoid driving your vehicle in another driver's blind spot. A blind spot is any place around a vehicle a driver cannot see without moving their head.

Here are some good rules to help you avoid this mistake:. The driver in the picture is in a lane that ends soon. If this driver does not change lanes, the driver may have to make a quick lane change or stop and wait for traffic to clear. To avoid last-minute moves, you must look far enough ahead to see and react to things early. You should be able to identify problem situations 12 to 15 seconds ahead — about one block in the city, or a quarter of a mile at highway speeds.

Your ability to handle dangerous traffic situations depends largely on searching for and identifying problems far ahead. Looking far ahead does not mean you should simply stare at the center of the road. You need to continually scan the entire road, including the sides of the road. Looking to the sides is especially important at intersections, driveways, shopping center entrances and exits, and highway entrances and exits — any place where one stream of traffic meets another.

When you come to an intersection, follow the "left-right-left" rule:.