Other states use ramp metering to reduce crashes, improve travel times and control the flow of traffic entering the freeway. The ramp meters will be used when traffic is slower and congested. They ...

Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's ...

What you need to know: While the outcome is not always optimal, the intent is often to manage queues, prevent spillbacks, and ...

A new traffic signal system designed by University of Michigan researchers is being implemented in Oakland County, with plans to expand across Southeast Michigan. The system uses GPS data to track ...