Q2/ The table below shows (15 min.) volume of vehicles passing a section count for roads A and B Find the peak hour Factor for each road and discussion your answer with the upper and lower limit. Time Period 11:00 - 11:15 11:15-11:30 11:30 - 11:45 11:45 - 12:00 Road A volume (vehicle) 800 1200 900 500 Road B volume (vehicle) 1400 1300 1700 2000

Q2/ The table below shows (15 min.) volume of vehicles passing a section count for roads A and B Find the peak hour Factor for each road and discussion your answer with the upper and lower limit. Time Period 11:00 - 11:15 11:15-11:30 11:30 - 11:45 11:45 - 12:00 Road A volume (vehicle) 800 1200 900 500 Road B volume (vehicle) 1400 1300 1700 2000

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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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
Problems 1. Traffic volumes on a four-lane freeway (two lanes in each direction) were counted manually from an overhead location, resulting in the data shown here. The desire was to obtain continuous 15-minute counts for each lane of the freeway for a two-hour period surrounding the morning peak hour. 11On 400 linc W Data for Problem 1 Eastbound Westbound Time of Count (PM) Lane 1 Lane 2 Lane 1 Lane 2 4:00-4:12 4:15-4:27 4:30-4:42 4:45-4:57 5:00-5:12 360 310 350 285 380 330 370 300 370 340 5:15-5:27 5:30-5:42 5:45-5:57 345 280 340 260 310 320 From the data shown, determine the following: (a) Continuous 15-minute volumes for each period and each lane. (b) The peak hour, peak hour volume, and peak hour factor (PHF) for each direction of flow and for the freeway as a whole. (c) Directional flow rates during each 15-minute count period.
The table below shows the number of vehicles observed on a corridor over each 15-minutes during the peak hour. Peak hour (7--8am) 7:00-7:15am 7:15-7:30am 7:30-7:45am 7:45-8:00am # of vehicle 200 120 153 183 Calculate the peak hour factor and report your answer correct to two digits after the decimal.
Vehicles arrive at an entrance to a recreational park. There is a single gate (at which all vehicles must stop), where a park attendant distributes a free brochure. The park opens at 8:00 A.M., the average arrival rate be 240 veh/h and Poisson distributed (exponential times between arrivals) over the entire period from park opening time (8:00 A.M.) until closing at dusk. If the time required to distribute the brochure is 10 seconds, the distribution time varies depending on whether park patrons have questions relating to park operating policies, assuming M/M/1 queuing. a.) Compute the average length of queue (express in veh), b.) Average waiting time in the queue (express in min/veh), c.) and average time spent in the system(express in min/veh)
Based on the following traffic speed frequency table, the mean speed and mode speed are approximately . & respectively. Speed class 30- <40 40- <50 50- <60 60- <70 70- <80 80- <90 90- <100 100- <110 (kph) Frequency 8. 12 20 25 22 15 8.
On a two-lane intersection approach, following traffic queue data were observed. Clock Time Cycle # Number of Vehicles in Queue +0 sec +20 sec +40 sec 5:00 5:01 5:02 5:03 6. 7. 3 6. 4 8. 4 5:04 7 5:05 5:06 6. 4 7. 9. 5:07 5:08 5:09 8 8 10 4 3. Total 64 63 65 Sum(Vig) - 192 Vstop = 130 VT= 165 FFS - 35 1) Estimate average time in queue sec/veh 2) The number of vehicle stopping per lane per cycle = veh 3) Fraction of vehicles stopping = 4) Control delay sec/veh
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.
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
19 Compute the peak hour factor if the hourly volume of traffic is 1964 veh/hour and the highest 15-min volume is 722. Round off to two decimal places.
The vehicle count obtained in every 10-minute interval of a traffic volume survey done in peak one hour is given below. Time Interval (in minutes) 0-10 10-20 20-30 30-40 40-50 50-60 Vehicle Count 10 11 12 15 13 11 The peak hour factor (PHF) for 10 minute sub-interval is off to one decimal place) (round
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. Maximum Q Xm Area C Maximu X, SW SW SW Area B Area A 'sWD , 'm(u) to(u) Distance
7. The following table shows traffic flow data collected at the main road in an urban area, in two successive days during the peak period Day one Flow (veh) Day two Time Flow (veh) 7:30 – 7:45 7:45 – 8:00 900 950 960 8:00 – 8:15 1010 1015 8:15 – 8:30 990 980 (a) Determine the peak hour factor (PHF) (b) Estimate the missing traffic flow count (x) on day two.