Data from a 6-ft by 6-ft inductive loop detector collected during a time period of 33 sec indicate that the mean speed of traffic is 52 mi/h among the 15 vehicles counted. Assume an average vehicle length of 19 ft. Determine the density (in veh/mi) and occupancy(percentage).densityoccupancyveh/mi%Need Help?Read ItWatch It

Given:Mean speed of traffic: 52 mi/hTime period: 33 secondsNumber of vehicles counted: 15Average…

Answered: Data from a 6-ft by 6-ft inductive loop…

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter6: Fundamental Principles Of Traffic Flow

Section: Chapter Questions

Problem 6P

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Similar questions

A flow characteristic that is related to the density and obtained from speed data is occupancy. Data obtained from a 6-ft by 6-ft inductive loop detector is used to determine the traffic density. With an occupancy of 9.375%, determine the density, in vehicles per mile, for a mean vehicle length of 27 feet.
It was determined through a survey that the rate of vehicles crossing a point on a highway is 400 veh/h. Calculate the probability of 5 vehicles arriving at an interval of 60 sec.
Data on a traffic accident record on a certain intersection for the past 4 years has an accident rate of 9200 per million entering vehicles (MEV). If the total accident is 802, find the average daily traffic a. 75 b. 60 c. 45 d. 95
The following data was collected from a lane when the highway was operating at capacity. Spot speeds (mph): 25, 30, 32, 35, 28, 35, 26, 29, 30, 34. Time Headways (sec): 2, 2, 1, 2, 3, 1.5, 2.5, 1.5, 2.5 what is the 85th percentile speed? Space mean speed(mph)? Jam density(veh/mi)? Capacity of the hwy lane?
Data on a traffic accident recorded on a certain intersection for the past 7 years has an accident rate of 4288 per million entering vehicles (ARMV). If the average daily traffic entering the intersection is 492, find the total number of accidents during the 7-year period a.5390 b.5388 c.5391 d.5389
Data from a 6ft by 6ft inductive loop detector collected during a 60 second interval indicates that the mean speed of traffic is 50mph among the 32 vehicles counted. Assume an average vehicle length of 19ft. Calculate a. The density, b. The occupancy, and C. The flow rate during this interval.
Calculate the minimum passing sight distance required for a two-lane rural roadway that has a posted speed limit of 45 mi/h. The local traffic engineer conducted a speed study of the subject road and found the following: average speed of the passing vehicle was 47 mi/h with an average acceleration of 1.43 m/h/sec, and the average speed impeder vehicles was 40 mi/h. Write your step by step solutions.
Data obtained from aerial photography showed six vehicles on a 600 ft – long section of road. Traffic data collected at the same time indicated an average time headway of 4 sec. Determine (a) the density on the highway, (b) the flow on the road, and (c) the space mean speed.
6-20 The table below gives data on accepted and rejected gaps of vehicles on the minor road of an unsignalized intersection. If the arrival of major road vehicles can be described by the Poisson distribution, and the peak hour volume is 1100 veh/h, deter- mine the expected number of accepted gaps that will be available for minor road vehi- cles during the peak hour. Number of Accepted Gaps >t Number of Gap (t) (s) Rejected Gaps >t 1.5 92 3 2.5 52 18 3.5 30 35 4.5 10 62 5.5 100
Two set of students are collecting traffic data at the two sections A and B 300 meters apart long a highway . Observation at A shows that 5 vehicles pass that section at intervals of 9 sec , 10 sec, 11 sec, 13 sec, and 15 sec respectively. If the speed of the vehicles were 84, 76, 68, 60 and 52 kph, compute the time mean spee (kph), space mean speed (kph), density of the highway
QUESTION 4 What is the time between the arrival of a vehicle and the arrival of the next vehicle, as measured at a given point on the roadway. spacing headway gap O none of the above
8 The number of accidents for 5 years recorded in a certain intersection is 5883. If the average daily traffic is 489, determine the accident rate. Round off to the nearest whole number.

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