Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Question
Chapter 6, Problem 17P
To determine
The different shock waves that can be formed and the traffic conditions that will result in each of these shock waves.
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3. Answer the following questions
a) Derive an equation to estimate speed of shockwave.
b) On a one-way freeway segment with a flow of 1000 veh/h and density 100
veh/mile, a fully loaded truck enters the stream, reducing the flow to 500 veh/h,
and moves for 5 miles at a speed of 20 mph before exiting. The vehicles behind
the trucks cannot overtake the truck and are forced to go behind the truck with the
speed of the truck at jam density. Determine how many passenger cars will be in
the platoon formed due to the truck's entry by the time the truck leaves the
freeway.
Given: Speed of the stream after the truck's departure= 80 miles/h, Jam Density =
200 veh/mile.
Define Vehicle collision loads
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Chapter 6 Solutions
Traffic and Highway Engineering
Ch. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Prob. 5PCh. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Prob. 10P
Ch. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 22PCh. 6 - Prob. 23PCh. 6 - Prob. 24PCh. 6 - Prob. 25PCh. 6 - The arrival times of vehicles at the ticket gate...Ch. 6 - Prob. 27P
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Similar questions
- Please provide some examples of the achievements and failures that traffic engineering has had.arrow_forwardA Pajero intercooler skidded into an intersection of Magsaysay Avenue and Quirino Avenue and stuck a bystander and continued until it hit one of the column support of the skyway. Based on the damage to the front of the car, the police report estimated that the car was doing 8 kph at the moment the impact on the column support. The length of the skidmarks was recorded to be 40m. The road has a downhill grade of -5%. A test car skidded 14m on the same section of the road when the brake is applie from a speed of 40 kph to the halt. Determine the probable speed of the car involved in the accident when the brakes were applied in kph.arrow_forwardThe driver of a vehicle saw a stray dog 40 meters away and decided to hit the brakes instantaneously. If the distance of the vehicle from the dog is 15 meters after the vehicle had stopped, what is the average skid resistance of the pavement if the vehicle is travelling at a speed of 65 kph?arrow_forward
- In your own words, Write a reflection, As a road user, how will the overtaking procedures contribute to a road safety? Write in 200 words.arrow_forwardA 15 tons locomotive moving at 5 m/s collides with and is coupled to a 45 tons car at rest on the same straight track. Find their common velocity after impact.arrow_forwardRead the question carefully and give me all right solutions. A 1.36-ton passenger car with front cross-sectional area of 3.4 m2 wastraveling at a speed of 105 km/hr on a smooth pavement. Determine:a. The horsepower required to maintain speed on a straight and levelroadb. The horsepower required to maintain speed as the vehicle travels up a5% gradec. The horsepower required to maintain speed as the vehicle traversesonto a horizontal curve of 305 m radiusarrow_forward
- A car travels around a curve with a radius of curvature of 60 meters. If the coefficient of friction is 0.2, what must be the banking angle of the curve so that so that the frictional resistance is zero?arrow_forwardA car moving with a speed of 50 km/h can be stopped by brakes after at least 6m. If the same car is moving at a speed of 100 km/h. What is the minimum stopping distance?arrow_forwardTraffic Engineering Lecture 7 Example ✓ Determine if the operation will be safe or not ✓ If not what control would you recommend? 40 mph C 12 ft 60 ft ONE WAY 20 ft 30 mph (reaction time = 2.5 s, level grade) B Proj 40 mph 42 ftarrow_forward
- Find the total distance that a car travelled from the time the driver saw the hazard when he was at 75 kph. The average skid resistance is 0.60.arrow_forwardA fairgrounds ride spins its occupants inside a flying saucer-shaped container. If the horizontal circular path the riders follow has a 7.00 m radius, at how many revolutions per minute will the riders be subjected to a centripetal acceleration whose magnitude is 2.35 times that due to gravity? rev/min Additional Materials Reading Submit Answerarrow_forwarda) Discuss how shockwaves are formed and how their occurrence can be reduced or mitigated? b)List and describe 3 common types of accidents at a X-intersection in your area and give appropriate engineering measure eliminate or reduce the occurrence?arrow_forward
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