2cb) The average speed of a 1st group of vehicles over a roadmsegment isper45 km/h and their flow is 1350 vehicleshour. The average speedof a2ndgroupof vehicles overthe same segment is 40 km/h and their flow is 1800hour. Determine the maximum flow of thevehicles perwhole traffic stream? Wat mumiyan to booge all

The maximum flow of the whole traffic stream is 3150 vehicles per hour.Explanation:

Answered: 2cb) The average speed of a 1st group…

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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Problem.
A Four Lane freeway is located on rolling terrain with a free flow speed of 70 mph,12ft lanes, and no lateral obstructions within 8 ft of the pavement edges. the traffic stream consists of cars, buses and large trucks (no recreational vehicles) . A weekend directional peak hour volume of 1800 vehicles (*regular users*)is observed ,with 700 arriving in the mostly congested 15 minutes period . if a level of service no worse than C is required ,determine the maximum number of large trucks and buses that can be present in the peak hour traffic stream.. Dislike for wrong answers
The traffic demand for a six-lane urban arterial road (three lanes per direction) is given in the table below. The relationship between flow and density for this road follows GreenShiled's model, with a free flow speed of 105 km/h and a jam density of 92 veh/km/lane. Two of the three lanes of the EB direction were closed at 5:00 AM for maintenance. The two lanes were re-opened at 8:00 AM, allowing the traffic to be released at capacity conditions. a) What is the maximum length of the queue upstream of the bottleneck? b) At what time the queue upstream of the bottleneck will be fully dissipated? c) What is the furthest point upstream of the bottleneck that will be impacted by the lane closure? d) Draw the shock wave diagram showing shock wave speeds, critical times, and distances. Time 5:00 6:00 AM 6:00 7:00 AM 7:00 8:00 AM 8:00 9:00 AM 9:00 10:00 AM 10:00 11:00 AM Demand (vph) 2000 4000 6400 6000 3600 3000
A freeway with 4 lanes, Hourly volume direction ( 2600 veh/hr.) , Truck ( 8 percent ), Buses (3 percent ) , ET = 1.5 , PHF = 0.95, fP =1, RVS ( 0 percent). The (15 min. ) passenger car equivalent flow rate (VP ) Pc/hr./ln. equal to:
Analyze the unsignalized intersection below and calculate the optimum cycle length if the intersection will be signalized. Approach E W N S Maximum no. of lanes 5 5 4 4 Direction Through left Through left Through left Through left N Total volume pcu/hr 1,480 370 860 586 1,360 494 2,030 265 Sat. flow rate pcu/hr/lane 2,400 1,700 2,400 1,700 2,200 1,800 2,200 1,800
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A segment of eight-lane urban freeway experiences a breakdown that blocks two lanes completely for a period of one hour in the peak direction. The breakdown occurs at 9:00 AM and is cleared by 10:00 AM. The capacity of the segment is 2,100 veh/h/In, with a maximum queue discharge rate of 1,800 veh/h/ln. Beginning at 9 AM, the traffic demand at this location is: 9:00 AM-10:00 AM 8,400 veh/h 10:00 AM-11:00 AM 8,000 veh/h 11:00 AM-12:00 Noon 7,000 veh/h After 12:00 Noon 6,000 veh/h 1. What is the maximum queue size that will form in this scenario? 2. At what time does the stable capacity value resume?
A segment of rural freeway is being designed for a FFS of 70 mph through rolling terrain. The directional (i.e. one-way) design volume is 3,000 vehicles per hour. If 10% of the design volume is expected to be heavy vehicles (i.e. trucks and buses), what is the heavy vehicle adjustment used to determine the flow rate? Provide you answer to the nearest hundredths. Response Feedback: f₁ HV 1 1+ · + P ₁ (E₁ − ¹) T T -where PT-0.1, ET=3.0
Traffic flow at a rate of 1200 veh/hr and density of 20 veh/km joined the tail of a 400 m-long Santacruzan procession moving at a pace of 3 kph. Since it was impossible to pass, a platoon density of 190 veh/km was formed. The head of the procession was expected to exit the road after moving 1 km. The capacity of the road is 2000 veh/hr at density 45 veh/km and jam density is at 200 veh/km. a. Draw approximately the − diagram to show the computation of shock wave. b. Estimate the length of queue after the Santacruzan procession has cleared the road. c. Estimate how long it would take to disperse the platoon queue.
The space mean speed (kmph) and density (vehicles/km) of a traffic stream are linearly related. The free flow speed and jam density are 80 kmph and 100 vehicles/km respectively. The traffic flow (in vehicles/h, up to one decimal place) corresponding to a speed of 40 kmph is SIIRDED

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