1) The number of accidents has been recorded at an intersection in the last three years asfollows: 18, 21, and 19. The accidents were mostly due to left-turning vehicles, speeding,and the absence of left-turn protection. The average ADT for the last 3 years is 8500. Thefollowing shows the crash reduction factor for various countermeasures:CountermeasureReduction FactorRetime signalsProvide left-turn signal phaseReduce speed limit on approachesProvide turning guide lines0.300.300.350.05a) Determine the appropriate countermeasuresb) Determine the expected reduction in crashes if the countermeasures are implemented.The ADT is expected to increase 2%

1. First we need to change over both the normal and convergence collides with its property…

Answered: The number of accidents has been rec…

The number of accidents has been rec ollows: 18, 21, and 19. The acciden and the absence of left-turn protection ollowing shows the crash reduction Countermeasure Retime signals

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Highway Safety

Proper highway safety refers to the methods or rules that prevent highway travelers from being killed or severely injured. Proper highway safety measures help to protect motorists, cyclists, pedestrians, passengers on public transport, and so on.

Question

1) The number of accidents has been recorded at an intersection in the last three years as
follows: 18, 21, and 19. The accidents were mostly due to left-turning vehicles, speeding,
and the absence of left-turn protection. The average ADT for the last 3 years is 8500. The
following shows the crash reduction factor for various countermeasures:
Countermeasure
Reduction Factor
Retime signals
Provide left-turn signal phase
Reduce speed limit on approaches
Provide turning guide lines
0.30
0.30
0.35
0.05
a) Determine the appropriate countermeasures
b) Determine the expected reduction in crashes if the countermeasures are implemented.
The ADT is expected to increase 2%

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