Questions
Questions
Questions
ACRONYMS

100

A speed used to determine the horizontal and vertical alignments of a highway
What is Design Speed?

100

The number of vehicles crossing a detector during a given time period.
What is Flow?

100

# of Vehicles divided by length of road
What is Density?

100

ITS (NOT INSTITUTE OF TRANSPORTATION STUDIES)
What is Intelligent Transportation Systems?

200

A set of lanes at an intersection that accommodates all left-turn, through, and right-turn movements from a given direction.
What is an Approach?

200

Harmonic mean of individual speeds
What is Space Mean Speed?

200

The percentage of time that a detector was occupied during a given time period
What is Occupancy?

200

AWDT
What is Average Weekday Daily Traffic?

300

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?

300

The theoretical speed of traffic when density is zero.
What is free-flow speed?

300

A road element in which demand exceeds capacity.
What is a bottleneck?

300

HOV
What is a High-Occupancy Vehicle?

400

Allocates trips between and origin and destination by a particular mode to a route (Four Step Method)
What is Traffic Assignment?

400

Matches tripmakers' origins and destinations (Four Step Method)
What is Trip Distribution?

400

Computes the proportion of trips between each origin and destination that use a particular transportation mode (Four Step Method)
What is Mode Choice?

400

ATMS
What is Advanced Traffic Management Systems?

500

The process of estimating the number of vehicles or people that will use a specific transportation facility in the future
What is Transportation Forecasting?

500

The type of loop detector that makes up the majority of loop detectors in the State of California
What is a Single Loop Detector?

500

Determines the frequency of origins or destinations of trips in each zone by trip purpose (Four Step Method)
What is Transportation Generation?

500

PTOE
What is Professional Traffic Operations Engineer?