What are Ramp Meters?

Ramp meters are traffic signals specifically installed on expressway entrance ramps. Their primary function is to regulate the flow of vehicles entering the highway, thereby managing traffic congestion and maintaining a smoother flow of traffic on the expressway. By controlling the timing of when vehicles can enter, ramp meters help to prevent bottlenecks and reduce the potential for accidents that can occur when too many cars merge onto a busy highway at once.

This signaling system is usually designed to operate during peak traffic times, allowing vehicles to enter the highway at intervals rather than all at once. This controlled access can significantly improve the overall efficiency of the highway, leading to shorter travel times and less stop-and-go traffic conditions. Understanding the role of ramp meters is essential for safe and efficient driving, particularly in urban areas with heavy traffic.