DLR6 个月
PeriLight – flashing light to direct the attention of drivers at level crossings
The central elements of PeriLight are two LED flashing light sources that are positioned next to the tracks, about 50 metres to the left and right of the level crossing. If the driver passes a sensor ...
KTVZ5 天
Redmond changing school speed zone signs to flashing lights; drivers need to slow down to ...
City of Redmond Public Works crews will begin updating 18 school zone speed limit signs this month, moving to a system where ...