Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Chapter 5, Problem 13P
To determine
The equivalent number of PDO (Property Damage Only) crashes.
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- 32 Find the accident rate at a road intersection per million entering vehicles if the average daily traffic is 300 and 1,722 accidents had occurred in the last 3 years. Express your answer in whole number.arrow_forwardNeed type answer a. A section of road has 55 accidents recorded in three years. For the same period, the estimated vehicle travel on the section was 23 mvk. Considering only those sections having the same characteristics as the section under study, the mean rate is 80 accidents per 100 mvk. Is the section hazardous with 90 percent level of confidence? b. Based on the graph of the accidents time per day on ‘explain’, what time makes up the most number of accidents? Discuss and explain why the frequency of accident is high.arrow_forwardA 2-mile long section of a roadway has recorded 20 crashes (total) during a period of 5 years. What is the crash rate for the section in terms of rate per 100 million entering vehicles?arrow_forward
- Determine the severity number for a section of highway that had 2 fatal crash, 48 personal injury crashes, and 105 property damage only crashes during a particular time period. Use a weighting scheme of 50 for fatal crashes, 25 for personal injury crashes, and 1 for crashes with only property damage. Determine the severity index by dividing the severity number by the total number of crashes, thereby normalizing the severity number by the number of crashes.arrow_forward1. With the new highway interchange at a dangerous street intersection, police records indicate an average of 5 accidents per month. The Department of Traffic Safety wants to investigate the probability of the following occurring in any month:a) No more than 4 accidents.c) At least 2 accidents.b) A single accident.d) At most 2 accidents in 15 days.arrow_forward1. A town has a population of 250,000 in 2005. In the same year, the number of accidents was 500. Determine the accident per 100000 population. Write only the number2. If there is an average of 1 registered car per 2 person, determine the accident rate per registered vehicle on question 1. Write the number only, _______ accidents per 10000 vehicles.arrow_forward
- The accident rate for 100 million vehicle miles of travel is 9.8. The length of the road is 15 mileswith an ADT of 67,000. Determine the estimated yearly reduction in total crashes if the crashreduction factor is one third.arrow_forwardTry to identify a highway mode transportation-related problem. And, what possible way the said problem may be addressed?arrow_forwardFind the accident rate at a road intersection per million entering vehicles if the average daily traffic is 348 and 1769 accidents had occured in the last 3 years. Express your answer in whole number.arrow_forward
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