1) SITUATION. On a specific westbound section of highway, studies show that the speed-density relationship is: It is known that the capacity is 4200 veh/hr and the jam density is 210 veh/km. What is the density that would give this capacity 136.64 veh/km 417.79 veh/km 336.12 veh/km 215.67 veh/km 2) What is the space-mean speed of the traffic at capacity? 20.22 kph 18.36 kph 30.74 kph 48.68 kph 3) 3. What is the free-flow speed? 41.78 kph B 76.85 kph 39.52 kph D 22.57 kph

1) SITUATION. On a specific westbound section of highway, studies show that the speed-density relationship is: It is known that the capacity is 4200 veh/hr and the jam density is 210 veh/km. What is the density that would give this capacity 136.64 veh/km 417.79 veh/km 336.12 veh/km 215.67 veh/km 2) What is the space-mean speed of the traffic at capacity? 20.22 kph 18.36 kph 30.74 kph 48.68 kph 3) 3. What is the free-flow speed? 41.78 kph B 76.85 kph 39.52 kph D 22.57 kph

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 25P

See similar textbooks

Similar questions

On a specific westbound section of highway, studies show that the speed-density relationship is: It is known that the capacity is 5200 veh/h and the jam density is 310 veh/mi. What is the a.) space-mean speed of the traffic at capacity, (mph) b.) and what is the free-flow speed? (mph)
During peak hours, 3800 vehicles pass through a certain highway from 9:00 AM to 11:00 AM, withspace mean speed of 20 kph. What is the average space headway per vehicle in meters? Hint:space headway is related to the density
Subject : Transportation engineering Give all right solutions. A free flow speed of 60 kph and a capacity pf 3600 vehicles per hour. If in a given hour 3344 vehicles were countered at a specified point along this highway, compute the following A) jam density (in veh/km and 3 decimals) B) space mean speed of these 3344 vehicles. (Kph and 3 decimals) C) density of the 3344 vehicles. (Veh/km and 3 decimals)
During peak hours, 3800 vehicles pass through a certain highway from 9:00 AM to 11:00 AM, withspace mean speed of 20 kph. What is the average space headway per vehicle in meters?
During peak hours, 3800 vehicles pass through a certain highway from 9:00 am to 11:00 am, with space mean speed of 20kph. What is the average space headway per vehicle in meters?
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?
On a specific westbound section of highway, studies show that the speed-density relationshipis
Given a freeway flow study at a certain highway. The speed- density relationship is described in thegiven equation or relationship:V s = 60- 0.48kDetermine the following:a. Free-flow speed and jam densityb. Derive the equation describing flow and speed.c. Derive the equation describing flow and density.d. Determine the capacity of highway
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.
Determine the density of traffic on a highway for free flow speed of 80 km/hr and flow rate of 1200 pc/hr/ln
Estimate the capacity of a given highway in veh/ hr with density equal to 110 veh/km during jam condition and with a speed of 80 kph during free flow condition. Assume a linear relation between density and speed.
Traffic flow on a four-lane (one direction) freeway can be described by the Greenshields model. Two lanes of the four lanes on a section of this freeway will have to be closed to undertake an emergency bridge repair that is expected to take 2 hr. The mean free speed of the highway is 60 mi/h and the jam density is 140 veh/mi/ln. If it is estimated that the demand flow on the highway during the emergency repairs is 80% of the capacity, using the deterministic approach, determine: (a) The maximum queue length that will be formed (b) The total delay(c) The number of vehicles that will be affected by the incident(d) The average individual delay