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
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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-0.8787. 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.Given the following data: The route will use 40-seat standard buses The door opening and closing time is 4 seconds The boarding time is 3.5 seconds and 4.0 seconds for standing passengers The alighting time is 2 seconds Use the attached table to calculate the average dwell time of the bus at each of the 10 stations
- 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 20006. (a) Define the peak hour factor (PHF) (b) Explain the traffic condition when PHF=1. 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 Day two Time Flow (veh) Flow (veh) 7:30 – 7:45 900 7:45 – 8:00 950 960 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.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.
- 5. In the volume study of KAAF University street, the following data was collected. Because of a shortage in manpower, data was collected for 12 minute periods in each 30 minutes as shown in the table below. Time No. of vehicles 3:30 - 3:42 3:45 - 3:57 100 4:00 - 4:12 106 4:15 - 4:27 4:30 - 4:42 115 4:45 - 4:57 5:00 - 5:12 120 5:15 - 5:27 5:30 - 5:42 142 5:45 - 5:57 6:00 - 6:12 135 6:15 - 6:27 |6:30 - 6:42 120 6:45 - 6:57 7:00 - 7:12 105 (a) Complete the table of the data collection (b) Find the peak hour (c) Determine the peak hour volume (d) Calculate the peak hour factor (PHF)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.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
- A mode choice logit model is to be developed based on the following information. A surveyof travellers in an area with bus service found the following data:Model Parameter Auto BusX1, waiting time (min.) 0 10X2, travel time (min.) 20 35X3, parking time (min.) 5 0X4, out-of-pocket cost (cents) 225 100Ak, calibration constant _0.33 _0.27The following utility functions were calibrated based on an observed mode split of 84.9%private auto use and 15.1% bus use.Utility function: Uk = Ak -- 0.10 X1 - 0.13 X2 - 0.12 X3 - 0.0045 X4After implementing service improvements to the buses, the mode split changed to 81.6%private auto use and 18.4% bus use. Determine a value for the calibration constant for the busmode that reflects this shift in mode split.1. Estimate the queue dissipation time, maximum queue length, and total delay, given: Time Arrival Rate (veh/hour/lane) Departure Rate (veh/hour/lane) 3:30 4:00 PM 4:00 8:00 PM 3:00 - 3:30 PM 1200 1800 1200 1200 900 18001321 GV The following travel times were measured as below. Compute the TMS and SMS for this data (tabulate your answer). Vehicle Travel time (sec) Speed (km/hr) 1 132 ? 2 168 ? 3 144 70 4 126 ? 5 144 70 6 156 ?