2-6-5 Traffic Signal Industry Overview Flashcards
There is often a logical reason why traffic signals operate the way they do.
True
There is little or no danger associated with traffic signal construction.
False
Who is ultimately responsible for your safety on the job site?
you are
Traffic signal work usually begins with __?__ construction.
underground
Two types of traffic signal supports are mastarms and __?__.
span wires
An incorrect anchor bolt pattern can be easily fixed after the foundation is poured.
False
The __?__ wire supports the signal cables as well as the signal heads.
messenger
After the concrete is poured for a pole foundation, it will take three to seven days to gain structural strength before a load can be applied.
True
Mastarm poles are made of __?__.
steel
The detection of vehicles is not a critical factor for a traffic signal to run efficiently.
False
The detection of vehicles is not a critical factor for a traffic signal to run efficiently.
False
Which type of detection device is installed in or under the roadway surface?
ntrusive
Which type of detection device is installed over or next to the roadway?
non-intrusive
A(n) __?__ device is used by emergency vehicles to take priority control over a traffic signal.
preemption
The __?__ monitor unit is a safety device that is used to monitor the traffic signal if things go wrong.
conflict
