Develop a signal timing for the intersection shown below. Assume values as necessary (providejustification on the assumptions).Level terrainDriver reaction time (t) = 1.0 sVehicle deceleration rate (a) = 10 ft/s²Length of typical vehicle = 18 ft375One wayPHF = 0.901,200Target v/c = 0.95Low pedestrian activityAverage approach speeds:35 mi/h WB60 ft40 mi/h NBCrosswalk widths = 10 ftCrosswalk setback = 2 ft2,105Walking speed = 4.0 ft/sNB grade = 3%WB grade = -1%l1 = e = 2.0 s300One wayN55 ft

Given :- a intersection shown below

Answered: Develop a signal timing for the…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Ina road-intersection near Dhaka, average 120 cars make right-hand turns in every hour. Road planner wants to put in a 3-vehicle right- hand turn lane in the intersection to avoid blocking of thru traffic. Determine if 3-vehicle right-hand turn lane satisfy the following design criteria: Red light time of right-hand traffic is 30 seconds Right-hand turn lane must be sufficient 90% of the time.
Please estimate the minimum cycle length and the green intervals for the following signalized intersection (Figure 7). Please note that the minimum cycle length will be influenced by the design of the phasing diagram. The arrival flow, in pcu/h, for each direction, is illustrated in Figure 7. Please assume any missing values. Lost time following each phase = 2 sec, Amber = 3 sec, Red all = 1 sec, saturation flow 1400 pcu/h. 196, 367, 170 JIL! 400, 140, 215 716 120, 417, 232 400, 433, 184 Figure 7. Intersection Layout and Traffic Flow Data
Q2: What are the assumptions for using the equations in the queue test? Q3: A signalized intersection, of 105 sec cycle length, the east approach has an effective green time of 20 sec, and the percentage of vehicles arriving during green time is 28%. The west approach has 16 sec green time and 32% of vehicles arriving during the green time. Determine which approach is best coordinated with the upstream signal.
Calculate safe overtaking sight distance for a two way traffic road for the following data. The speed of overtaking and overtaken vehicles are 50and 40kmph respectively. The acceleration is 3kmph/sec, design speed is 60 kmph and reaction time is 2seconds.
Observers stationed at two sections XX and YY, 1000 ft apart on a highway, record the arrival times of four vehicles as shown in the table below. Vehicle Section XX Section YY A T0 T0 + 14.33 sec B T0 + 3.76 sec T0 + 18.14 sec C T0 + 7.94 sec T0 + 22.06 sec D T0 + 12.13 sec T0 + 27.87 sec If the total time of observation at XX was 20 sec, determine (a) the time mean speed, (b) the space mean speed, (c) the flow at section XX, and (d) the density on the highway
A signalized intersection has four approaches. If the north, south, east, and west approaches have average control delays of 21, 25, 34, and 32 seconds, respectively, and their respective volumes are 198, 176, 265, and 303 pc/h, what is the intersection LOS? Group of answer choices LOS C LOS B LOS A LOS D
An intersection has a three-phase signal with the movements allowed in each phase and corresponding analysis and saturation flow rates shown in the table below. Assume the lost time is 4 seconds per phase and a critical intersection v/c of 0.90 is desired. Phase 3 Allowed movements NB L, SB L NB T/R, SB T/R EB L, WB L EB T/R, WB T/R Analysis flow rate 330, 365 veh/h 1125, 1075 veh/h 110, 80 veh/h 250, 285 veh/h Saturation flow rate 1700, 1750 veh/h 3400, 3300 veh/h 650, 600 veh/h 1750, 1800 veh/h Using v/c equalization ratio, calculate the effective green time for phase 1 O 15.954 sec O 12.105 sec O 14.127 sec O 13.190 sec
Determine whether a T intersection (one leg on the minor approach) with the hourly volume data satisfy MUTCD Warrant 3 (peak-hr vehicular volume) for signalization. All approaches have one lane entering the intersection. For the warrant that is met, explain how the warrant is met (rules applied, hours in which the volume criteria were met, etc.) and refer to necessary graphs and tables. The major street speed limit is 60 km/h, and the minor street speed limit is 40 km/h.
Consider the following data: · Average number of vehicles (overtaking - overtaken) = 1 • Average number of vehicles during trips in opposite direction of traffic flow = 336 · Average journey time when test vehicle is travelling with the stream = 8 min 31 sec. · Average journey time when test vehicle is travelling against the stream = 7 min 24 sec. Average journey time for the above data is min. %3D
Through the Walla Walla Road to the entrance of the E-1 parking lot at the University of Washington, vehicles begin to arrive from 7:40 A.M. at a uniform deterministic rate of 480 vph until 8:20 A.M. and from then on at 120 vph. It takes 10 seconds for a vehicle to go through the paying process at the gate. If the parking lot is open at 8:00 A.M., determine (a) when the queue will dissipate, (b) the total delay, (c) the average delay, (d) the maximum queue length (in vehicles), and (e) the longest vehicle delay under FIFO. Show your results graphically. [Hint: D/D/1 analysis]
Subject: transportation engineering Read the question carefully and give me right solution according to the question. A signal has four phases, where the critical lane group flow ratios are 0.115, 0.204, 0.099, and 0.248. If the lost time per phase is 6 seconds and the critical intersection v/c ratio is 0.88, calculate the minimum cycle length and the phase effective green times such that the lane group v/c ratios are equal.
The speeds of 10 vehicles were measured at the midpoint of a (4.04-kilometer section of roadway. Vehicles The speeds of 10 vehicles were recorded: Assuming all vehicles were traveling at constant speed over this roadway section, calculate: a. Time-mean speed in kph b. Space-mean speed in kph c. Traffic Density in veh/km 1st 2nd 3rd 4th 5th Speed (kph) 42.3 54.2 68.8 35.8 48.6 Vehicles 6th 7th 8th 9th 10th Speed (kph) 78.5 96.1 41.5 28.4 36.2

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