only 2nd one C1Peak-hour traffic demand between an origin and destination pair is initially 3500 veh/h. The two routesconnecting the pairs have performance functions t₁ = 2 + 3 and t₂ 4+2, where the times t₁ andt₂ are in minutes and the flows ₁ and 2 and capacities c₁ and c₂ are in thousands of vehicles per hour.Initially, the capacities of routes 1 and 2 are 2500 and 4000 veh/h. A reconstruction project reduces capacityon route 2 to 2000 veh/hr.What is the flow x₁ (in thousands of vehicles) on route 1 before the reconstruction?2.2062.206644Assuming user equilibrium before and during reconstruction, which proportion of the total demand should bediverted (or removed) to ensure tha travel times during reconstruction are equal to those beforereconstruction?ЭХ 64цis wrong64410³ vehsSubmit=XC

Given data:- The flow X1 on route 1 before the reconstruction, X1=2.206×103 Vehicles The peak hour…

Assuming user equilibrium before and during reconstruction, which proportion of the total demand should be diverted (or removed) to ensure that travel times during reconstruction are equal to those before reconstruction?

Assuming user equilibrium before and during reconstruction, which proportion of the total demand should be diverted (or removed) to ensure that travel times during reconstruction are equal to those before reconstruction?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Three routes connect an origin-destination pair with performance functions:t₁ = 20 +0.5x1t2 = 4+ 2x2t3=3+0.2x3with t in minutes and x in thousand vehicles per hour.(a) Determine the User Equilibrium flow on each route if q = 4000veh/h. (b) What is the minimum q (origin-destination demand) to ensure that all the three routes are used under user equilibrium? (c) Suppose that Route 1 is closed for repair. Find the system optimal flow on routes 2 and 3 and compute the total travel times.
8.21 Three routes connect an origin and destination with performance functions t₁ = 2 +0.5x₁,₂ = 1 + x2 and 13 = 4 + 0.2x, (with f's in minutes and x's in thousands of vehicles per hour). Determine user- equilibrium flows if the total origin-to-destination demand is (a) 5000 veh/h.
Two routes connect an origin and a destination and the flow is 15000 veh/h. Route 1 has a performance function t1=4+3*x1, and route 2 has a function of t2=b+6*x2, with the x's expressed in thousands of vehicles per hour and the t's in minutes. (a) If the user equilibrium flow on route 1 is 9780 veh/h, determine the free-flow speed on route 2(i.e. b) and equilibrium travel times. (b) If population declines reduce the number of travelers at the origin and the total origin-destination flow is reduced to 7000 veh/h, determine user equilibrium travel times and flows.
road construction The 20-year projection of annual average daily traffic of a two-way roadway is 36.500 vehicles. Theroad serves as a highway between a residential area and a business area and the expected directionaldistribution factor is D=0.6. The 30th peak hour factor for the roadway is K=0.15. During an hourly vehiclecount, the following values were registered: 1st 15 minutes: 200 cars, 2nd 15 minutes: 130 cars, 3rd 15minute 230 cars, 4th 15 minutes. 180 cars. Estimate the peak hour factor . What is the designdirectional hourly volume for this route?
You are designing a freeway as a passenger-car-only facility, and with ideal roadway characteristics. It is estimated that the freeway will have a traffic demand of 75,000 vehicles per day, a peak-hour factor of 0.88, and a directional distribution of 0.65. day. It is estimated that the freeway will have a free flow speed of 70mi/h. Determine the number of lanes (both directions) required to provide at least LOS D using the 60th highest annual hourly volume. Use k =0.11.
A rail transit system has prescribed the following factors:1. Peak hour demand = 30000 passengers/hr2. Minimum required speed = 55 ft/sec3. Deceleration = 3 ft/sec24. Safety factor = 1.455. Vehicle length = 80 ft6. Allowable vehicle capacity = 150 pass/veh7. Guideway utilization factor = 0.838. Minimum headway = 110 secHow many cars should the train consist of to provide adequate passenger capacity?
A two-lane, one-way, rural freeway segment is being designed to service a demand volume of 4,000 vehicles per hour. The PHF is expected to be 0.95. If the combination of trucks, buses, and recreational vehicles is represented by a heavy vehicle adjustment of 0.85, what is the flow rate (pcphpl)? Provide your answer to the nearest integer.
A section of highway has a speed–flow relationship of the form q = au2 + bu, where q is the traffic flow in veh/h, u is the space-mean speed of traffic in mi/h, and a and b are unknown parameters. It is known that at capacity (which is 3100 veh/h) the spacemean speed of traffic is 28 mi/h. Determine the speed when the flow is 1500 veh/h and the free-flow speed.
The table below shows the hourly volumes obtained from a short-term traffic count station and their corresponding hourly expansion factors (HEFs). DEFs for Friday and Saturday are 8.5, and 8.7 respectively; and MEF is 1.655. Compute the AADT a. 26447 b. none c. 28450 d. 15501 e. 33121
A freeway with two northbound lanes is shut down because of an accident. At the time of theaccident, the traffic flow rate is 1200 vehicles per hour per lane and the flow remains at this level.The capacity of the freeway is 2200 vehicles per hour per lane when not impacted by an accident.The freeway is shut down completely for 20 minutes after the accident and then one lane is openfor 20 minutes and finally both lanes are opened (40 minutes after the accident). What is theaverage delay per vehicle resulting from the accident (assuming D/D/1 queuing)?
the average spacing of vehicles in a single highway is 50m center to center. The average speed of the cars us 30 kph. determine the volume if traffic in vehicles per hour.
Two lanes of the four lanes on a highway section have to be closed to undertake an emergency bridge repair that is expected to take 120minutes hr. The highway's mean free speed is 90km/h, and the jam density is 140 veh/km/ln. If it is estimated that the demand flow on the highway during the emergency repairs is 80% of the capacity (max flow), using the deterministic approach, determine: 1. The maximum queue length that will be formed.2. The number of vehicles that will be affected by the incident.3. The average individual delay.