A section of a highway is known to have a free-flow speed of 65 mi/h and a capacity of 3500veh/h. In a given hour, 2500 vehicles were counted at a specified point along this highway section. If the linear speed-density relationship applies. What would you estimate the space-mean speed (mph) of these 2500 vehicles be? choices: 50.34, 48.61, 49.87, 51.46

A section of a highway is known to have a free-flow speed of 65 mi/h and a capacity of 3500veh/h. In a given hour, 2500 vehicles were counted at a specified point along this highway section. If the linear speed-density relationship applies. What would you estimate the space-mean speed (mph) of these 2500 vehicles be? choices: 50.34, 48.61, 49.87, 51.46

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter6: Fundamental Principles Of Traffic Flow

Section: Chapter Questions

Problem 4P

See similar textbooks

Similar questions

A section of highway is known to have a free-flow speed of 50mph and a capacity of 3600 veh/h. In a given hour, 2400 vehicles were counted at a specified point along this highway section. If the linear speed-density relationship (greensheild model) applies, what would you estimate the space-mean speed of these 2400 vehicles to be?
A section of a highway is known to have a free-flow speed of 65 mi/h and a capacity of 3500veh/h. In a given hour, 2500 vehicles were counted at a specified point along this highway section. If the linear speed-density relationship applies. What would be the density at the capacity (veh/mi)? choices: 108.45,105.32,106.36,107.69. help asap thank you!
A section of a highway is known to have a free-flow speed of 65 mi/h and a capacity of 3500veh/h. in a given hour, 2500 vehicles were counted at a specified point along this highway section. If the linear speed-density relationship applies. What would you estimate the space-mean sped(mph) of these 2500 vehicles be?
3. A section of a highway is known to have a free-flow speed of 55mph and a capacity of 3300 veh/hr. In a given hour, 2100 vehicles were counted at a specified point along this highway section. If the linear speed-density relationship applies, what would you estimate the space mean speed of these 2100 vehicles be?
Measurements from a single-lane roadway reveal that the average spacing and headway between passing vehicles are 200 ft and 2.4 seconds, respectively. What is the flow [veh/hr], density [veh/mi] and average speed [mi/hr] of traffic on this roadway?
F] Vehicles travel at constant speeds on a one-lane one-way street between sections X and Y. An observer located at point X observes the four vehicles passing point X during a period of 10 seconds. The speeds of the vehicles are measured as 45, 45, 40, and 30mph, respectively. Calculate the average flow, density, time mean speed, and space mean speed.
A traffic data has been collected on two points on a highway: Point A and Point B, 450m apart. Observations at Point A shows that five vehicles passed the location at intervals 5, 5, 3, and 3 sec respectively. The speed of the vehicles at point A are 61, 59, 70, 79, 55 km/hr respectively. Assume the speed is maintained until point B. What is the density, in veh/km.
Question 1 The table below shows twelve spot speed values measured at a specific point on an urban highway. 3 4 5 6 7 8 9 1 2 10 11 12 78.1 80.9 79.1 72.8 80.4 80.2 85.1 71.5 75.7 81.9 79.5 74.4 Vehicle # Speed (km/h) a) Calculate the Time Mean Speed and the Space Mean Speed of the twelve vehicles. b) Using the values calculated in the previous question, validate the two equations proposed by Wardrop in 1952.
Data on traffic accident recorded on a certain intersection for the past 5 years has an accident of 4160 per million entering vehicles. If the average daily traffic entering the intersection is 504, find the total number of accidents during 5-year period. Use L=10 miles. a. 3862 b. 38.62 c. 3826 d. 38.26
Six vehicles are observed in a 200 m section of a highway. If the average time headway is 4 sec., determine the density of flow (veh/km), flow of traffic (veh/hr) and space mean speed (kph).
The recorded number of vehicles on a 1.2 km stretch of highway is 39. Calculate the density of traffic in veh/km at the portion of the highway.
A flow characteristic that is related to the density and obtained from speed data is occupancy. Data obtained from a 6-ft by 6-ft inductive loop detector is used to determine the traffic density. With an occupancy of 9.375%, determine the density, in vehicles per mile, for a mean vehicle length of 27 feet.