United States Department of Transportation
i
Development of automated testing tools for traffic control signals and devices (NTCIP and security) phase 2 : [summary].
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2015-02-01
[PDF-1.11 MB]
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Abstract:The metal cabinets that house traffic signal
controllers are a common sight at most
intersections in Florida. Traffic engineers use them
to time signal changes and facilitate the flow of
traffic through an intersection. At the core of this
device is the actuated signal controller (ASC),
commonly known as a traffic signal controller,
which takes in a variety of information and adjusts
the timing of traffic signals. Prior to use, traffic
controllers must be tested to verify that they
are working as designed and as programmed.
However, many different companies manufacture
traffic controllers, and testing them requires an
individualized protocol for each manufacturer,
which makes testing them complex and timeconsuming.
Fortunately, standards for traffic
controllers have recently been developed as part
of the National Transportation Communications for
Intelligent Transportation System Protocol (NTCIP)
which allowed the development of a test tool that
could automatically test any traffic controller,
regardless of their proprietary protocol, as long as
the controller conforms to the NTCIP.
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