What is the time between the departure of a vehicle and the arrival of the next vehicle, as measured at a given point on the roadway. O spacing O headway O gap O none of the above
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- 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 «QUESTION 1 The approaches of a 4-leg signalized intersection are configured with 1 NB lane, 1 SB lane, 1 EB lane, and 1 WB lane and each of these lanes serves LT, TH, and RT movements. The following volumes and phasing are provided. approach EB WB NB SB movement LT TH RT LT TH RT LT TH RT LT TH RT volume 120 480 160 80 560 100 20 200 40 12 160 48 2 6 What is the critical sum for the EB/WB barrier?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.Question 2: Speed observations from a radar speed meter have been taken, giving the speeds of the subsidiary streams composing the flow along with the volume of traffic of each subsidiary stream. The readings are as under: Calculate: (i) Time-mean speed (ii)Space-mean speed (iii) Variance about space mean speed. Is pitn 50 puns on s pese sped Speed Volume of subsidiary mmidel spued (km hr) stream (Vehicle hour) 2-5 6-9 4 10-13 14-17 18-21 20 2-5 22-25 44 26-29 80 30-33 82 34-37 79 38-41 49 42-45 36 46-49 26 50-53 6. 54-57 10 58-612) 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.QUESTION 4 What is the time between the arrival of a vehicle and the arrival of the next vehicle, as measured at a given point on the roadway. spacing headway gap O none of the aboveAt a specified point on a highway, vehicles are known to arrive according to a Poissonprocess. Vehicles are counted in 30-second intervals, and vehicle counts are taken in 120 ofthese time intervals. It is noted that no cars arrive in 18 of these 120 intervals. a) Approximate the number of these 120 intervals in which exactly three cars arrive. b) Estimate the Percentage of time headways that will be 10 seconds or greater andthose that will be less than 6 seconds.TRAVEL TIME AND DELAY STUDIES • The shows data obtained in a travel time study on a section of highway using the moving-vehicle technique. Estimate (a) the travel time and (b) the volume in each direction at this section of the highway Run Direction/ Number Northward 2 4 5 6 7 8 9 10 Southward 3 4 6 7 8 9 10 No. of Vehicles Travel Traveling in Time Opposite Direction (min) 5.25 5.08 5.30 5.15 5.00 5.51 5.38 5.41 5.12 5.31 4.95 4.85 5.00 4.91 4.63 5.11 4.83 4.91 4.95 4.83 100 105 103 110 101 98 97 112 109 107 85 88 95 100 102 90 95 96 98 90 PARKING STUDIES No. of Vehicles That Overtook Test Vehicle 3 1 0 1 3 0 1 0 0 2 1 1 No. of Vehicles Overtaken by Test Vehicle 2 1 1 0 3 1 0 1 2 PROB 1. Data collected at a parking lot indicate that a total of 300 cars park between 8 a.m. and 6 p.m. 10% of these cars are parked for an average of 2 hr, 30% for an average of 4 hr, and the remaining cars are parked for an average of 10 hr. Determine the space-hours of demand at the lot PROB 2. If 10% of…A Moving to another question will Sch Question 1 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 OC. 12.5 O D. 13 O E. None of the above Question 1 of 50 A Moving to another question will save this response. acer F4 F8 F9 F10 F11 F12 PrtSc Pause Del Home F3 F5 F6 F7 Scr Lk SysRq Break Ins DIO & Backspa 8 9.Sanl dass Flow rate is the equivalent hourly rate for vehicles during an interval less than one-hour usual 30 minutes O 15 minutes O None of them O Saslp s Green bergs assume relationship between speed and density Non liner O None of them O linear OConsider the following plot of cumulative arriving and departing vehicles at a freeway bottleneck location: Vehicles 20,000 15,000 10,000 5,000 0 0 30 60 90 120 150 180 210 240 270 300 330 360 Time (mins) Arrivals (vehs) Departures (vehs) From this plot, determine the following: A. What is the capacity of the bottleneck location? 9000 whole number, i.e. X000.) B. What is the maximum size of the queue that develops? 3250 whole number, i.e. X000.) C. What is the longest wait time that any vehicle experiences during the breakdown? to the nearest whole number, i.e. XX.) (Hint: Provide the answer as a numerical number only in units of vehicles per hour and rounded to the nearest thousand (Hint: Provide the answer as a numerical number only in units of vehicles and rounded to the nearest thousand (Hint: Provide the answer as a numerical number only in units of minutes and roundedA three-zone city has the following characteristics: Zone 1 Zone 2 Zone 3 Initial travel time factors are Production Travel time (min) Fij 500 600 200 Distances (time): 1-2: 10 min 2-3: 15 min 3-1: 20 min Distribute the trips using the gravity model. 10 80 Attraction 15 60 400 800 100 20 40SEE MORE QUESTIONS