5. Consider the time-space diagram below. a. If you are observing from a point at distance-1000 ft, what is the average headway between each vehicle? Distance (ft) b. What is the average density between 0 and 1000 ft at a time of 10 s? c. What is the speed of vehicle 1 (the top vehicle)? d. What is likely happening at a distance of 1500 ft? 3500 3000 2500 2000 1500 1000 500 0 10 Time-Space Diagram for Hobart St 30 Time (s) -Veh 1-Veh 2 -Veh 3-Veh 4 20 40 50

5. Consider the time-space diagram below. a. If you are observing from a point at distance-1000 ft, what is the average headway between each vehicle? Distance (ft) b. What is the average density between 0 and 1000 ft at a time of 10 s? c. What is the speed of vehicle 1 (the top vehicle)? d. What is likely happening at a distance of 1500 ft? 3500 3000 2500 2000 1500 1000 500 0 10 Time-Space Diagram for Hobart St 30 Time (s) -Veh 1-Veh 2 -Veh 3-Veh 4 20 40 50

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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QUESTION 1 A researcher was observing traffic along one lane of a rural highway. During a 1 minute time interval, ten vehicles were observed travelling 65, 64, 71, 66, 58, 72, 69, 66, 55 and 62 mph. Using these spot speeds, calculate the space mean speed (mph). Provide your answer to the nearest tenth of a mph.
We know that q=ku for traffic flow. If we measure speeds and densities at three points within a mile at the same time, which of the following is true? a. Average u will be the same at all three points b. Average k will be the same at all three points c. Average q (calculated) will be the same at all three points d. None of the above 6. 7. Headway is defined as the time between vehicles passing a fixed point on the road, measured from: a. Front bumper of first car to back bumper of second car b. Front bumper of first car to front bumper of second car c. Back bumper of first car to front bumper of second car d. None of the above
Answer question 8
A golf ball is struck with a velocity of 80 ft/s as shown. Determine the speed at which it strikes the ground at B. Round your answer to 1 decimal place VA = 80 ft/s B
A researcher was observing traffic along one lane of a rural highway. During a 1 minute time interval, ten vehicles were observed travelling 65, 64, 71, 66, 58, 72, 69, 66, 55 and 62 mph. Using these spot speeds, calculate the time mean speed (mph). Provide your answer to the nearest tenth of a mph.
Match the following to True/False. A. GPS devices are an example of mobile traffic sensors For the time-space diagram of a single-lane one-way road, the vehicle trajectories do not intersect with each other unless there is a crash. Pneumatic tubes detect vehicle presence by sending an electric signal to a roadside device. B. Space mean speed may be greater than time mean speed in certain situations. A. True B. False
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 20 minutes? A. 255 B. 750 C. 50 D. 500 E. None of the above
I need the answer as soon as possible
The pace factor of a random man was recorded to be 0.76 meters per step. If there is 2.7% margin of error with the use of his pace factor, what is the value of the probable error of the distance of a line measured using the man's pace factor if the recorded number of steps is 143.
With FBD and Solution pls refer to the second picture if the answer is in the choices one of those 4 answers is correct
4. The relation of the density (d) along a roadway to vehicle speed (s: km/h) is given as d = 50- s/2 Determine the flow (q)-speed (s) and flow (q)-density (d) relationships and draw the variations of density-speed, flow-speed and flow-density on. Show the maximum and minimum points on these graphs