Shockwave theory: Calculate the maximum queue length (Q in the below figure) given the current condition Arrival volume: 450 vphpl, speed 40 MPH Jam density (waiting): 130 veh/mile/lane Red time: 30 sec; Green time: 70 sec Saturation rate (capacity volume): 1500 vehicles per hour per lane. Please use this diagram to calculate.

Shockwave theory: Calculate the maximum queue length (Q in the below figure) given the current condition Arrival volume: 450 vphpl, speed 40 MPH Jam density (waiting): 130 veh/mile/lane Red time: 30 sec; Green time: 70 sec Saturation rate (capacity volume): 1500 vehicles per hour per lane. Please use this diagram to calculate.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter4: Traffic Engineering Studies

Section: Chapter Questions

Problem 21P

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Example 3 Because of a minor collision, one of the two SB lanes on a freeway is blocked at 8:13am. The normal freeway capacity of 3600 vph is reduced to 1340 vph. The SB flow rate at this time of day is 2715 vph. The blockage is removed after 15 minutes. - Find the maximum queue length Maximum time spent in queue - - - Time of queue dissipation - Total delay -
2) Given the following data for five traffic analysis zones (TAZ): Zone Production Attraction 1 1 2 4 The travel times are as follows: 5 13 min 20 min 15 min 450 600 270 325 0 9 min 7 min 5 min 3 400 750 120 0 350 Determine the trips on the following: T1-3 and T2-5.
1. Planners have estimated the following models for the AM Peak Hour T₁ = 1.5 H₁ T; - (1.5 Euj1) + (1 Euthy) + (0.5 Eretj) Where: T - Person Trips Originating in Zone i T₁ = Person Trips Destined for Zone j H Esti Eath Eret Variable 10000 8000 3000 2000 Data Dakotopolis 15000 10000 5000 1500 New Fargo A. What are the number of person trips originating in and destined for each city? B. Normalize the number of person trips so that the number of person trip origins = the number of person trip destinations. Assume the model for person trip origins is more accurate.
Transportation The table shows a 15-minute volume counts during the peak hour on an approach of an intersection
Choose the right answer traffic volume data has been collected for 15 min time intervals as shownbelow. Find the total hourly volume, flow rate and peak hour factor (PHF). Time:7:30 - 7:45 7:45 - 8:00 8:00 - 8:15 8:15 - 8:30 Volume 200 300 350 250 * a-0.876 b-0.877 c-0.878
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This is the product of the arrival rate and average waiting time in the queue. a. Average waiting timeb. Average vehiclesc. Average length of queued. Average delay
H.W: Traffic volume data has been collected for 10 min time intervals as shown below. Find the total hourly volume, flow rate and PHF. Time 7:30-7:40 7:40-7:50 7:50-8:00 8:00-8:10 8:10-8:20 8:20-8:30 Volume 250 280 300 200 150 130
PLEASE ANSWER ANY TWO A)A roadway with a capacity of 4000 vph has 15 minute arrivals of 1000, 500, 500, and 2000 during the peak hour. The queue at the end of the hour is most likely. B)A 3ft detector is used along a highway to help measure density. What is the density (in vpmpl) if the detector is occupied 50 percent of the time. Assume 28 ft veh length. C)If vehicles arrive at a rate of 360 vph, what is the probability of exactly 2 vehicles arriving in 20 seconds? (2 to decimals) D)How many vehicles have "arrived" if for 3 straight 15 minute periods the arrival rates are 240 vph, 400 vph, 600 vph?
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A MOX V, YK/s a" zain 1Q TH 25% of hourly volume 1 Add file Q3: The following table show the results of current traffic counts for a rural highway at each 15 min. intervals during two hrs. Calculate:1. Peak hour volume 2. Peak hour factor 3. Current and future design hour volume If the design life is 35 years and construction time 5 years 7:00- 7:15- 7:30- 7:45- 8:00- 8:15-8:30- 8:45- 7:15 7:30 7:45 8:00 8:15 8:30 8:45 9:00 Time Volume 100 200 700 800 600 300 100 50 (veh.) 1 Add file Page 2 of 5 Вack Next Never submit passwords through Google Forms. This form was created inside of University of Diyala, Report Abuse Google Forms
1) 1) A section of highway has the following flow-density relationship: q-50k-0.156k² What is the capacity (maximum flow) of the highway section, the space mean speed at capacity, and the density when the traffic flow on the highway is at one-quarter of its capacity? 2) An observer has determined that the time headways between successive vehicles on a section of highway are exponentially distributed (arrival of vehicle is Poisson distribution) and that 60% of the headways between vehicles are 13 seconds or greater. If the observer decides to count traffic in 30-second time intervals, estimate the probability of the observer counting exactly four vehicles in an interval.