This is formed when pedestrians group themselves together when crossing

Zero flow rate conditions happen at _____ ______ and when there are zero vehicles

It is the portion of the walkway that can be effectively used for pedestrian movement

It is a useful device for defining the elements of traffic flow

It is the average speed of all vehicles occupying a given section of highway or lane over a specified time period

Pedestrian, _____, vehicle, and traffic make up the elements being considered in highway design

One of the most critical safety problems in any highway system involves the interactions of vehicles and _____

It is the extreme expression of a driver’s psychological and personal displeasure over the traffic situation encountered

It is the range of sight within which signs and markings must be placed

It is defined as the ability to see fine details in an object

It is the distance required to overtake another vehicle along a two-lane two-way road

It is the time interval between successive vehicles as they pass a point along a lane

Turn scenario for vehicles speeds over 15 kph or 10 mph

It is the inclination of the roadway toward the center of the curve

It is the largest vehicle likely to use the facility with reasonable frequency

It assumes an exponential model for speed-density relationships

Age, strengths of stimulus, _____, and habits can affect a person’s perception reaction time

The _____ of accidents usually increases as traffic flow decreases

Measure of effectiveness for level of service analyses of pedestrian facilities

The greenshield model assumes a ____ relationship between speed and density