AFTON, VA (Rocktown Now) — The Virginia Department of Transportation is testing a new congestion warning system on Interstate 64 over Afton Mountain to enhance safety for motorists traveling along the corridor.

VDOT officials say the system will be live starting today while testing is taking place and is expected to be fully operational this summer, after testing is complete.

The system uses detection sensors installed along the eastbound and westbound mountain grades to continuously monitor traffic speeds and traffic flow.

When sensors detect stopped vehicles or significant speed reductions indicating congestion, flashing warning lights automatically activate to alert approaching drivers to use caution and prepare to slow down.