Daytime Running Lights
Daytime Running Lights (DRLs) are headlights that are illuminated during the day in order to make vehicles more visible and thus reduce their involvement in crashes. It is possible to fit vehicles with a device that will automatically activate DRLS when the ignition is switched on but is overridden by full strength headlights.
DRLS have been found to increase driver’s peripheral perception of vehicles. It is also easier for drivers to estimate the distance to vehicles with DRLs.