Skip to content
The Detroit

Why Traverse City police cruisers are switching to all-blue lights

Why Traverse City police cruisers are switching to all-blue lights
Photo: WDIV ClickOnDetroit (NBC) - Local News · view original

What to know: Blue lights stand out immediately against nighttime red taillights and traffic signals. The human eye perceives blue wavelengths as brighter and sharper in the dark. Distinguishes police cruisers from fire trucks, ambulances, and utility vehicles. Holiday travelers heading north thr...

Sources and story details