Surface Transportation Bills
Transportation Planning
Highway Design
Traffic Engineering
Acronyms
100
FAST
What is Fixing America’s Surface Transportation
100
The process of estimating the number of vehicles or people that will use a specific transportation facility in the future
What is Transportation forecasting
100
This is the manual that contains the standards for highway design
What is AASHTO Greenbook
100
A road element in which demand exceeds capacity.
What is Bottleneck
100
NTSB
What is National Transportation Safety Board
200
MAP-21
What is Moving Ahead for Progress in the 21st Century
200
Determines the frequency of origins or destinations of trips in each zone by trip purpose
What is Transportation generation
200
A speed used to determine the horizontal and vertical alignments of a highway
What is Design speed
200
The time, in seconds, for the front bumper of the second of two successive vehicles to reach the starting point of the front bumper of the first
What is Gap
200
DBE
What is Disadvantaged Business Enterprise
300
SAFETEA-LU
What is Safe, Accountable, Flexible, Effective Transportation Equity Act: A Legacy for Users
300
This matches tripmakers' origins and destinations in the Four Step Method.
What is Trip Distribution
300
The visibility distance required for drivers to execute safe passing maneuvers in the opposing traffic lane of a two-lane, two-way highway.
What is Passing Sight Distance
300
The percentage of time that a detector was occupied during a given time period
What is Occupancy
300
PTOE
What is Professional Traffic Operations Engineer
400
TEA 21
What is Transportation Equity Act for the 21st Century
400
This part of the Four Step Method allocates trips between origin and destination by a particular mode to a route
What is Traffic Assignment
400
A two-level interchange in which left turns are handles by ramp roads.
What is Cloverleaf Interchange
400
This is the average speed of all vehicles occupying a given section of roadway over a specific time period.
What is Space Mean Speed
400
HOP
What is Highway Occupancy Permit
500
TIFIA
What is Transportation Infrastructure Finance and Innovation Act of 1998
500
In the "hierarchy" of a trip, including primary movement roadway, a collection/distribution system, and other transitions, the trip ends here.
What is Termination Point
500
The geometry of a roundabout eliminates this type of vehicle-vehicle crash
What is Right-angle
500
This number is a highway's theoretical maximum saturation flow rate per lane.
What is 1900 vehicles per hour
500
SHPO
What is State Historic Preservation Officer
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