If the model In us = In uf-k/kj is applicable to depict the correlation between speed (mi/h) and density (veh/mi) on a highway segment, and employing regression analysis provides the model constants Y = A + BX (where Y = Inu, X = k) as A = 3.9 and B=0.018, then calculate the: Jam density in veh/km. Express answer into two decimal places. Do not type the unit. veh/km.

If the model In us = In uf-k/kj is applicable to depict the correlation between speed (mi/h) and density (veh/mi) on a highway segment, and employing regression analysis provides the model constants Y = A + BX (where Y = Inu, X = k) as A = 3.9 and B=0.018, then calculate the: Jam density in veh/km. Express answer into two decimal places. Do not type the unit. veh/km.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: A breakdown of car N occurredresulting to completely stopping of this car. A driver in car M noticed…

A: Given data- Initial speed of Car 'M' (XY)=(u) = 50 km/hr Distance travelled by car M (S) = 200 m To…

Q: 3. Assuming that the expression: 43 50 8 us can be used to describe the speed-density relationship…

A: Solution: The speed-density relationship of a highway is given as us=ufe-kkj To use linear…

Q: 3. A driver takes 2.5 seconds to react to a complex situation while traveling at a speed of 40…

Q: 99 Under Nath

A: Given:- optimum density for the high-speed freeway data set is assumed to be 40 miles per hour and…

Q: If the model in us = In uf-k/kj is applicable to depict the correlation between speed (mi/h) and…

Q: Results of traffic flow studies on a highway indicate that the flow-density relationship can be…

A: Answer We are given a speed-density model Speed (mi/hr) Density(veh/mi) 56 19 54 24 45 44…

Q: The equation governing a body travelling in a water channel is given by the following equation and…

Q: Results of traffic flow studies on a highway indicate that the flow-density relationship can be…

Q: The average speed of vehicles on an expressway is being studied. a. Suppose observation on 50…

A: Given,n=50sample mean, x¯=65 km/hrstandard deviation, σ=6 km/hrto determine,the two-sided 99%…

Q: vay tm= 2.5 seconds (gap) in sQ = 200 vehicles per hour,

Q: Vehicles are driving at 35 miles/hour in a roadway. A slow truck joins the traffic at 15 mile/hour…

Q: The grade, g, of a road is defined as the distance it rises (or falls) to the distance it runs…

A: As per given in the question, The grade, g, of a road is defined as the distance it rises (or…

Q: Vehicle time headways and spacings were measured at a point along a highway, from a single-lane…

A: Given:- The average values of the vehicle time headways = 2.5 sec/veh The spacing = 200 ft/veh To…

Q: s= Determine the density (in veh/mi) at which the maximum volume will occur as well as the value of…

A: Speed and density observations are given as belowSpeed (mile/hr)Density…

Q: I appreciate your help, thanks!

Q: The data shown below were obtained by time-lapse photography on a highway. Use regression analysis…

Q: Express the following equation, the traffic density in veh/km when d is in m, in terms of number of…

A: solutionk = 1000 mdIf k is in vehiclekm so d is mk = nd (d = km)k = vehiclekmIf d is in mile k =…

Q: Question 2 If the model in us = ln uf-k/kj is applicable to depict the correlation between speed…

Q: Match the following to True/False. A. GPS devices are an example of mobile traffic sensors For the…

A: Traffic engineering is a branch of civil engineering that focuses on the design, analysis, and…

Q: The data shown below were obtained by time-lapse photography on a highway. Use regression analysis…

Q: I just need help finding U_s and plotting speed versus density and volume versus speed, I will rate!

Concept explainers

Capacity and Level of Service at Intersections

The term capacity is associated with transportation engineering. Capacity helps to understand how many pedestrians or vehicles can be handled by a transport facility. Level of service is also a term associated with transportation engineering. The level of service indicates the performance of the transport facility.

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Introducing given data

VIEW

Step 2: Equations

VIEW

Step 3: Calculate jam density in veh/km

VIEW

Solution

VIEW

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Capacity and level of service at intersections

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Problem Statement Consider isentropic supersonic flow around the sharp expansion corner illustrated in Figure shown below: Mi M2 Figure 1. Isentropic supersonic flow around a sharp expansion corner. The relationship between Mach number before the corner (M₁) and after the corner (M₁), derived by Zucrow and Hoffman (1976), is given by o = bâ [tan-t ཊཌི་ཊྛཱི -1」 བཻ _ tan-iཊཌི་ཤྲཱི -1 j -[tan-t{wę - 1)2} - tan-i{of - 1)4}] where b b = (x + 1) and y is the specific heat ratio of the gas. Use Newton-Raphson Method to solve for M₂ for specified values of y, 6, and M₁. For y = 1.4, solve for M₂ given the following combination of M₁ and 6: 1.0 and 10.0°. Correct up to 1.0x105.
From data collected on a metropolitan arterial road, it has been found that speed (v in kph) and density (k in vpk) are related by the following expression: v=72 0.72k Plot the speed-density diagram. Write the equation of the plot on this diagram and show the values of free-flow speed, critical speed, critical density and jam density on this diagram. Plot the flow-density diagram. Write the equation of the plot on this diagram and show the values of free-flow speed, critical speed, critical density, jam density and capacity on this diagram. Plot the speed-flow diagram. Write the equation of the plot on this diagram and show the values of free-flow speed, critical speed and capacity on this diagram.
Express the following equation, the traffic density in veh/km when d is in m, in terms of number of vehicles per mile when d is in mi, ft, and yd. (Use the following as necessary: n, d.) 1,000n d k = when d is in mi when d is in ft when d is in yd k = k = k = nd 5280nd 1760nd X X X
Assuming that the expression: u = ue i, can be used to describe the speed-density relationship of a highway, determine the capacity of the highway from the data below using regression analysis. k (veh/mi) u, (mi/h) 43 50 38.4 33.8 53.2 42.3 31 Under what flow conditions is the above model valid?
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
Results of traffic flow studies on a highway indicate that the flow-density relationship can be described by the expression. q=uk- Uff2 kj If speed and density observations give the data shown below, develop an appropriate expression for speed versus density for this highway. (Use the following as necessary: k. Assume u is in mi/h and k is in veh/mi. Do not include units in your answer.) Speed (mi/h) Density (veh/mi) 57 16 53 28 45 40 40 59 28 69 21 89 17 98 Determine the density (in veh/mi) at which the maximum volume will occur as well as the value of the maximum volume (in veh/h). density at maximum volume maximum volume veh/mi veh/h
Speedometer readings for a vehicle (in motion) at 4-second intervals are given in the table. t (sec) 0 4 8 12 16 20 24 v (ft/s) 0 5 17 31 39 38 28 Estimate the distance traveled by the vehicle during this 24-second period using L6, R6 and M3.L6 = R6=M3=