6. There are 5 vehicles passing through an intersection of two highway in a period of 20 seconds. Vehicle Spot speeds, kph 1 34.20 42.40 46.30 41.10 4 5. 43.40 Compute the space mean speed in kph. 41.05 kph

6. There are 5 vehicles passing through an intersection of two highway in a period of 20 seconds. Vehicle Spot speeds, kph 1 34.20 42.40 46.30 41.10 4 5. 43.40 Compute the space mean speed in kph. 41.05 kph

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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On a four legs rotary intersection, the width of both crossed urban streets is equal to 10.0m in each direction. Assume the central island circumference equals 157m, and a circulating width equals 12.0m. Calculate the control delay (seconds) using the Jordanian empirical method based on the following peak hour traffic volumes: Leg U-Turn L-Turn Through R-Turn EB 145 172 1056 409 WB 132 285 1793 462 NB 56 120 476 192 SB 96 149 582 221 • Round your answer to the nearest two decimal places. Answer: 14.332
Traffic on a freeway gives a Greenshield's traffic flow relationship expressed as: Q = 60k-0.16667k? At 10AM, an accident occurs 4 km downstream of an access ramp. The vehicles pull onto the shoulder of the roadway, but traffic passing the accident area slows to 10 kph as drivers survey the damage on the side of the road. A patrol car enters the freeway via access ramp, also at 10AM. Upon entering the freeway, the patrol car notes that traffic on the freeway is moving along at about 40 kph. Determine the following: 1. Capacity flow of the highway 2. Traffic shockwave created by the road accident 3. Time in AM the patrol car will reach the accident zone 4. Plotted traffic shockwave line in the Q-k traffic model diagram
1.) From the traffic studies performed along a street shows the distances each vehicle traveled every 3 seconds on a portion of the highway. Vehicle Distance, m 1 82.6 2 89.9 3 84.6 4 82 a.compute the space mean speed of the traffic, in kph.b.compute the flow of traffic.c.compute the density of traffic.
7.12 The saturation flow rate of an approach to a pretimed signal is 6000 veh/h. The signal has a 60-second cycle with 20 seconds of effective red allocated to the approach. At the beginning of an effective red (with no vehicles remaining in the queue from a previous cycle), vehicles start arriving at a rate v(t) = 0.4 +0.01t + 0.00057+² (where v(t)) is in vehicles per second and t is the number of seconds from the beginning of the cycle). 30 seconds into the cycle the arrival rate remains constant at its 30-second level and stays at that rate until the end of the cycle. What is the total vehicle delay over the cycle (in vehicle- seconds), assuming D/D/1 queuing?
2 A slight bend prior to a curve means that a 65 km/h curve advisory speed sign is not visible to drivers until 95 m before the start of the curve. The 85th percentile speed of vehicles on this approach, prior to reaction and braking, has been measured by survey as 88 km/h. If it is assumed that it is desirable for vehicles to slow down to the posted 65 km/h-advisory speed before reaching the curve, what is the required distance to achieve this? Is the available sight distance adequate for this?
Plz, solve this problem. Transportation Engineering-2 A four-lane highway (2 lanes in each direction) with 3.65m lanes has a horizontal curve designed for a 380 m centerline radius, and a 110 km/hr design speed. The grade is level. Use a driver perception reaction time of 2.5 sec and a vehicle deceleration rate of 3.4 m/sec2. Determine the closest distance any roadside object may be placed to the centerline of the inside lane of the roadway.(note: Do not round any value. Use calculated values).
A rail transit system has prescribed the following factors:1. Peak hour demand = 30000 passengers/hr2. Minimum required speed = 55 ft/sec3. Deceleration = 3 ft/sec24. Safety factor = 1.455. Vehicle length = 80 ft6. Allowable vehicle capacity = 150 pass/veh7. Guideway utilization factor = 0.838. Minimum headway = 110 secHow many cars should the train consist of to provide adequate passenger capacity?
A freeway is to be designed as a passenger-car-only facility for an AADT of 35000 vehicles per day. It is estimated that the freeway will have a free flow speed of 70mph. The design will be for commuters and the peak hour factor is estimated to be 0.85 with 65% of the peak hour traffic traveling in the peak direction. If the k-factor for this freeway is 0.148, determine the directional design hourly volume. 3367 4403 2862 5015
A developer has applied for a construction permit to build a supermarket at the southeast cornerof an intersection that is formed by a four-lane divided highway in the east-west direction and atwo-lane road in the north-south direction. Traffic on the two-lane road is controlled by a stop signat the intersection. The speed limit on the four-lane highway is 88 km/h. using the sight trianglerequirements at the intersection (Case B1), determine whether permission should be given for theconstruction if the following conditions exist. Provide a diagram for your solution.Major road lane width = 3.6 mMinor road lane width = 3.3 mMedian lane = 2.8 mDesign vehicle is a passenger carApproach grade = 2%Maximum feasible distance building from the center of the nearest lane of four-lane road = 5.4 mMaximum feasible distance building from the center of the nearest lane of two-lane road = 16.5 m
Calculate the passing sight distance on a two lane road having the design speed of 86 kmph and reaction time 2 sec. Assume one way traffic. Take acceleration of overtaking and overtaken vehicle as 3 m/s2 and 1.5 m/s2 respectively. Assume that overtaken vehicle starts accelerating after the reaction time of overtaking vehicle. Take space headway as 18 m.
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