Arterial Management Program

Model Systems Engineering Documents for Adaptive Signal Control Technology (ASCT) Systems

Glossary

ASC Adaptive Split Control
ASCT Adaptive Signal Control Technology
Child Child requirement that is associated with an over-arching requirement called a parent requirement.
CIC Critical Intersection Control
CFR Code of Federal Regulations
COTS Commercially available Off-The-Shelf. This is an FAR term defining a non-developmental item of supply that is both commercial and sold in substantial quantities in the commercial marketplace, and that can be procured or utilized under government contract in precisely the same form as available to the general public.
FAR Federal Acquisition Regulation
ICM Integrated Corridor Mobility
ITS Intelligent Transportation System
Low-bid Contract awarded to the "lowest responsible bidder." Bid is based on a complete set of plans and specifications that precisely defines the facilities to be built.
Natural cycle length The cycle length at which an intersection would run with minimum overall delay.
Parent Parent requirement that has associated sub-requirements called child requirements.
PIF Public interest finding
Real-time Activity that occurs simultaneously with or very soon after an event. For example, real-time control involves taking action based on measurements immediately after the measurement is completed.
Resonant cycle length A cycle length that accommodates good two-way progression.
RFI Request for information
RFP Request for proposal
RFQ Request for qualifications
Synch point Reference point in signal phase or cycle used to synchronize operation of adjacent signals.
TBC Time base coordination
TMC Transportation Management Center
TOC Traffic Operations Center
TOD Time of Day
TRPS Traffic Responsive Pattern Selection

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