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Crashes occur most frequently at intersections, and they are considered the most dangerous places on a street or highway. More than one-third of fatal traffic crashes involving motor vehicles occur at intersections. 

On four-lane highways separated by a median of more than 30 feet, each crossing constitutes a separate intersection. The law requires that you slow down when you come to an intersection, even if you have the right of way. 

## In intersections without traffic signs or signals, the right- of-way rules state: 

• The vehicle already in the intersection has the right of way ahead of any vehicle that has not yet entered; 

• When two or more vehicles reach an intersection at the same time, the vehicle to the right has the right of way; 

• A vehicle with the right-of-way may move straight ahead or, if legal and after signaling, turn right or left; and 

• Even with the right-of-way, be careful to avoid hitting other vehicles and pedestrians. 

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## TIP 

## Single-Point Interchange 

A single-point interchange compresses two intersections into a single intersection over or under a free-flowing road. Through traffic and traffic turning left onto or off the interchange, is controlled by a single set of traffic signals. The traffic signals are located at the center or top of the interchange and allow vehicles to clear the intersection more quickly. These interchanges help move large volumes of traffic through limited amounts of space safely and efficiently. 

When two facing vehicles approach an intersection at the same time, the right- of-way rules are not much help. Both drivers can move straight ahead or turn right. If one driver is going straight while the other wants to turn left, the driver who wants to turn must wait. The driver who wants to turn left must give the proper signal and wait until the turn can be made safely. Therefore, in this case, the driver who is traveling straight ahead has the right of way. Never change lanes while you are moving straight ahead through an intersection. 

## Right-of-Way at Intersections 

When you approach an intersection with a stop sign, you must come to a complete stop and yield to the traffic on the through-street. Do not move ahead or turn until you can proceed safely. 

Drive with caution at intersections with traffic signals and wait until the signal permits you to turn or to move straight ahead. 

When exiting a private driveway, stop and yield to all other vehicles and pedestrians. At unmarked intersections where it is hard to see in all directions, stop and then move forward slowly and cautiously. 

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