Find Pace for data shown in table below which below represents speedspot study (SSS) data that recorded from urban collector highway inTikrit city.ENo.123456789Speed group (mph)20-2525-3030-3535-4040-4545 - 5050-5555 - 6060-65Frequency (f)04132841372290

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Find Pace for data shown in table below which below represents speed spot study (SSS) data that recorded from urban collector highway in Tikrit city. No. 1 2 3 4 5 6 7 8 9 Speed group (mph) 20-25 25-30 30-35 35-40 40-45 45 - 50 50-55 55-60 60-65 Frequency (f) 0 4 13 28 41 37 22 9 0

Find Pace for data shown in table below which below represents speed spot study (SSS) data that recorded from urban collector highway in Tikrit city. No. 1 2 3 4 5 6 7 8 9 Speed group (mph) 20-25 25-30 30-35 35-40 40-45 45 - 50 50-55 55-60 60-65 Frequency (f) 0 4 13 28 41 37 22 9 0

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter12: Forecasting Travel Demand

Section: Chapter Questions

Problem 17P

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1. If the signal phase designation shown below follows the NEMA convention, the value of "a" and "e" respectively should be: 2 Heaviest Movement e b a а. 1 and 8 b. 4 and 5 с. 1 and 4 d. 3 and 4 2. Which of the following is (are) common accident exposure measure(s) for a highway section? a. Fatality b. Vehicle-Kilometer с. Роpulation d. All of the above 3. Which of the following is (are) possible choice(s) of safety performance index? а. Speed b. Асcident c. Traffic conflicts d. All of the above
Part 2 - Solving: Observers stationed at two sections A-A and B-B, 200 m apart on a highway, record the arrival times of four vehicles as shown in the table. %3 Vehicle Section A-A Section B-B To + 7.6 sec To + 10.4 sec To + 15.1 sec I To + 23.4 sec If the total time of observation at A-A was 20 seconds, determine: (a) the time mean speed in A To + 4.2 sec To + 8.7 sec To + 13.7 seC B C KPH, (b) the space mean speed in KPH, (c) the flow at section A-A in veh/hr, (d) time headway in seconds, and (c) traffic density in veh/km. 5 points each.
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.
1. A total of 5,000 person-trips are made between a commercial district and a residential area during the PM peak hour. Commuters have two modes available, including private automobile and a light- rail transit system. The following utility function was calibrated using data from the study area from users of these two modes: U 3D -0. 50T1 — 0. 50T, — 2. 00С Data summarizing the operational characteristics and costs associated with each mode are provided in the following table. Private Light-Rail Parameter Automobile Transit = in-vehicle travel time (min.) 10 T1 T2 = excess time (min.) C = out-of-pocket cost (dollars) 15 5 10 5.00 2.00 Determine how many trips will be made by each travel mode based on these characteristics.
Spot speed study was carried out redesign the stretch of major district road. The data collected during th estudy is given below. (1) (ii) Speed Range kmph 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100 Frequency of vehicles Cars Two Wheelers 5 20 24 20 30 35 25 10 10 1 0 6 12 30 60 35 35 15 18 9 What is the design speed for redesigning existing MDR? What are upper and lowe speed limits for mixed traffic? Others 0 4 4 5 30 30 15 10 2 0
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)
uestion 18 The density of traffic in a certain observation point on a highway was recorded to be 30 veh/km. If the space mean speed of the vehicle is 50 kph, how many vehicles will be passing every 30 minutes O A. 25.5 O B. 750 O C. 12.5 O D. 13 O E. None of the above «
44 LTE !:: 12:29 HW4 ) جوالي College of Engineering Cl Engineering Department Northern Border University Faculty of engincering Department of Civil Engineering 1401380: Traffic and Transportation Engineering Dr. Abdelkader Mabrouk Home Work 4 Exercise: A section of rural 2 lane highway is to be designed to carry a peak hour volume of 1500 on a level terrain. Determine the level of service at which it will operate using the following data: V Lane width = 11 ft V No passing zone = 20% Directional split = 60/40 V Decimal fraction of trucks = 0.10 V Decimal fraction of recreational vehicles = 0.04 V Decimal fraction of buses = 0.01 Shoulder width = 6 ft PHF = 0.95
5-4.. The following traffic count data were taken from a per- manent detector location on a major state highway. 1. 2. 3. 4. 5. Month No. of Total Total Total Weekdays Days in Monthly Weekday Volume in Month Month Volume (days) (days) (vehs) (vehs) 200,000 210,000 215,000 205,000 195,000 193,000 180,000 175,000 189,000 170,000 171,000 Jan 22 31 Feb 20 28 185,000 180,000: 172,000 168,000 160,000 150,000 -175,000 178,000 182,000 176,000 Mar 22 31 30 Apr May Jun 22 21 31 22 30 Jul 23 31 21 31 Aug Sep Oct 22 30 198,000 205,000 200,000 22 31 Nov 21 30 Dec 22 31 From this data, determine (a) the AADT, (b) the ADT for each month, (c) the AAWT, and (d) the AWT for each month. From this information, what can be dis- cerned about the character of the facility and the demand it serves?
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The results of a speed study are given in the form of a frequency distribution table. Find the time mean speed and space mean speed. speed rang: (2-5),(6-9),(10-13),(14-17)frequency: 1,4,0,7
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