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…

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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Two observers have determined that the time headways between successive vehicles are exponentially distributed and that 70% of the headways are 8s or greater. If one of observer decides to count traffic in 40s intervals, and the other in 35s intervals, estimate the probability of each observer counting 5 or more vehicles in their own intervals?
solve the problem given in image. please solve it completely.
Assume you are an observer standing at a point along a three‐lane roadway. All vehicles in lane 1 are traveling at 30 mi/hr, all vehicles in lane 2 are traveling at 45 mi/hr, and all vehicles in lane 3 are traveling at 60 mi/hr. The spacing between vehicles in each lane is 0.5 mile. If you collect spot speed data for all vehicles as they cross your observation point for 2 hours, what will be the time‐mean speed and space‐mean speed for this traffic stream?
Question 2: The collected data in Table (1) from speed and delay studies by floating car method on a segment of urban road of length 3.5km, running North-South are given in table below: Table (1) Collected field data Trip No. Direction Journey of Trip Total No. of No. of No. of time stopped delay Min. sec. vehicles vehicles vehicles Min. sec. overtaking overtaken from opp. direction 1 N-S 6 32 1 40 4 7 268 S-N 7 14 1 50 3 186 3 N-S 6 50 1 30 280 S-N 7 40 2 00 1 200 6 10 1 10 2 22 N-S 3 250 S-N 8 00 170 7 N-S 6 28 1 40 2 290 8. S-N 7 30 1 40 2 160 Estimate the average travel time for North -South and South – North directions respectively.
Transportation The table shows a 15-minute volume counts during the peak hour on an approach of an intersection
q.complete. Answer.
QUESTION 9 The adjustment for the access point density is based on empirical studies indicating that for each access point per mile, the estimated FFS decreases by 0.25 mi/h, regardless of the type of median. Note that these access points are those that influence traffic flow and that access points that go unnoticed by drivers are not included in the calculation of the access point density. Therefore, what is the expected reduction (mph) in FFS when the access density is 4 access points per mile. (enter a positive value)
On an expressway, it was recorded that there is an average of 22 vehicles that are passing the said portion of the highway in every minute. Evaluate the value of the flow of traffic on that day in veh/hr.
vehicles arrive at roadway section at a rate of 300 veh/h according to a Poisson distribution. During a 40 minute interval, how many of the headways will be greater than 4 seconds on average?
2. Describe the following types of traffic volume counts and explain when they are used: (a) screen-line counts, (b) cordon counts, (c) intersection counts, and (d) control counts.
the following data were taken on five vehicles travelling consecutively 1.5km portion of the NLEX. Vehicle Time(minute) 1 1.2 2 1.0 3 1.4 4 1.3 5 1.1 Determine the density of traffic in (Veh per km) 3.33 3.83 4.33 2.83

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