definition
strict definition
tram traffic signal
Signals displaying or broadcasting changing commands to trams, streetcars, and other light rail traffic.
Tram traffic signals are lights, mechanical flags, audio speakers, or other forms of signage which display or broadcast dynamically changing commands to light rail traffic, including trams and streetcars.
The intended recipient is a light rail vehicle. The signal can be audible or mechanical as well as a light display.
A vehicle traffic signal directs road vehicles. Separate indications can address tram and road movements at the same intersection.