
February 28, 2006
One of TLL Electric's six employees digs a hole to install a loop
detector -- the wire under the road that tells a traffic light that
a car is waiting.

February 28, 2006
One of TLL Electric's six employees digs a hole to install a loop
detector -- the wire under the road that tells a traffic light that
a car is waiting.
Comments
Use the comment form below to begin a discussion about this content.
Requires free registration
Posting comments requires a free account and verification.
Or login with:
OpenID