Sessions 25-28 focus on complex risk driving environments at speeds up to 70 mph. Traffic flow on expressways can be heavy and at times unpredictable. They are called limited or controlled access highways because there are only certain locations, called interchanges, where a driver can enter and exit the expressway. Expressways have a low frequency of collisions, but often have high injury severity rates when a collision does occur because of the higher speeds.
Review the expressway information in the DDS driver’s manual. Make sure your teen understands the different kinds of expressway interchanges, expressway signs, signals, lane markings, speed limits, and the importance of maintaining a 20-30 second visual lead.
Entering an expressway – expressway entrances include three areas: the entrance ramp, the acceleration lane, and the merge area. The entrance ramp allows the driver time to search the expressway and evaluate speed and available space before entering. Entrance ramps may be uphill, downhill, or level with the expressway. Each of these roadway conditions presents a different challenge when trying to search the traffic flow on the expressway. Using commentary driving, practice entering and exiting the expressway 10 times during each session.
Steps for Entering the Expressway:
Steps for Exiting the Expressway:
Expressway Driving Tips
Most routes are one- and two-digit numbers.
Alternate routes are usually three-digit numbers, with the last two numbers designating the main one- or two-digit route.
Ramp Meters are traffic signal devices located on entrance ramps to the freeway. The Ramp Meter Program was implemented to alleviate congestion and emphasize motorist safety. The meters regulate the frequency of vehicles entering the flow of traffic on a freeway. They work similar to traffic signals with a red and green light. All vehicles must stop when the light is red. Vehicles are only permitted to move onto the freeway when the signal turns green.
Checklist for Sessions 25-28
Regulations in red are new this year.
Purple text indicates an important note.