A road segment 5500 m long has an annual average daily traffic (AADT) of 8000 veh/day. The Safety Performance functions for injury, fatal, and property damage only(PDO) crashes developed from similar entities are: SPFatal = 0.3 * 10-6 (L) (AADT0.491) SPinjury = 1.602 * 10-6 (L)(AADT0.491) SPPDO = 3.811 10-6 (L)(AADT0.4⁹1) * Determine the following: Number of fatal crashes per year Number of injury crashes per year Number of property damage only crashes per year 1. 2. 3. Answers: 1. Number of fatal crashes per year = 2. Number of injury crashes per year = 3. Number of property damage only crashes per year

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A road segment 5500 m long has an annual average daily traffic (AADT) of 8000 veh/day. The
Safety Performance functions for injury, fatal, and property damage only(PDO) crashes
developed from similar entities are:
SPFatal = 0.3 * 10-6 (L) (AADT0.4⁹1)
= 1.602 * 10-6 (L) (AADT 0.491)
SPinjury
SPPDO = 3.811 10-6 (L) (AADT0.491)
Determine the following:
1.
2.
3.
Number of fatal crashes per year
Number of injury crashes per year
Number of property damage only crashes per year
Answers:
1. Number of fatal crashes per year =
2. Number of injury crashes per year =
3. Number of property damage only crashes per year =
Report your answers to the closest two decimal places without units (i.e., if your answer is
0.258, you should enter 0.26 or if your answer is 3.564, enter 3.56)
Transcribed Image Text:A road segment 5500 m long has an annual average daily traffic (AADT) of 8000 veh/day. The Safety Performance functions for injury, fatal, and property damage only(PDO) crashes developed from similar entities are: SPFatal = 0.3 * 10-6 (L) (AADT0.4⁹1) = 1.602 * 10-6 (L) (AADT 0.491) SPinjury SPPDO = 3.811 10-6 (L) (AADT0.491) Determine the following: 1. 2. 3. Number of fatal crashes per year Number of injury crashes per year Number of property damage only crashes per year Answers: 1. Number of fatal crashes per year = 2. Number of injury crashes per year = 3. Number of property damage only crashes per year = Report your answers to the closest two decimal places without units (i.e., if your answer is 0.258, you should enter 0.26 or if your answer is 3.564, enter 3.56)
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