Unit 05 Lesson 02 - Ramp Metering
WHY? The population growth in Utah has resulted in an increase in the number of vehicles using our freeways. The result has been more frequent congestion and unpredictable travel times on our freeways.RAMP METERS help prevent slowdowns and 'stop-and-go' conditions that freeway travelers frequently encounter at certain times of the day. There are currently some ramp meters along the Wasatch Front.
What are Ramp Meters? Ramp meters look almost like traffic signals you see at intersections, except they have only red and green lights. Ramp meters are placed on freeway on-ramps and allow only one (unless posted differently) vehicle to pass each time the green light comes on.
How Does Ramp Metering Help? Ramp metering occurs only when many vehicles are attempting to enter the freeway. A lighted “METER ON” sign at the entrance to an on-ramp will indicate when ramp metering is in effect. If the “METER ON” sign is not illuminated, drivers are allowed to enter the freeway as usual. Because the “METER ON” sign is at the entrance to a freeway on-ramp, drivers will be able to decide whether to enter the on-ramp or take an alternate route and avoid having to stop for the ramp meter.
The ramp meter alternates between red and green every few seconds, allowing one (unless posted differently) vehicle to enter the freeway for each green light. If the line of vehicles waiting to enter the freeway gets too long, the ramp meter will automatically allow vehicles to enter the freeway more frequently.
What are the Benefits? Waiting on the on-ramp may take a few extra minutes, but that wait will usually pay off when on the freeway your driving is less obstructed by traffic. You will probably notice that traffic is moving quicker and smoother through areas where you previously experienced “stop-and-go” driving. If you travel only three to five miles on the freeway, it is possible that taking surface streets rather than the freeway will actually take less time, even if you do have to stop at some intersections
What are the Benefits? Waiting on the on-ramp may take a few extra minutes, but that wait will usually pay off when on the freeway your driving is less obstructed by traffic. You will probably notice that traffic is moving quicker and smoother through areas where you previously experienced “stop-and-go” driving. If you travel only three to five miles on the freeway, it is possible that taking surface streets rather than the freeway will actually take less time, even if you do have to stop at some intersections