Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Question
Chapter 9, Problem 9P
To determine
The number of passenger car equivalents.
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Given the data below:
Daily Traffic Count
Axle Load (Kips)
1000 (single axle cars)
300 (single axle buses)
120 (tandem axle trucks)
SN is 5, Pi = 4.2,
22
40
Pr = 3, design life is 20 years, growth rate is 5%, lane distribution factor = 0.45
%3D
Calculate the ESAL.
Q2 / Find the number of lane for the design roadway given the following traffic data:
ADT = 7651 vehicles/hour in both direction, - 2% grade , K = 12% , D= 55% , Truck
30%, Busses = 10% , Normal growth for design period = 30% , Generated growth =
20%, Development traffic = 250% , Track = 2 PCU , Busses = 3 PCU and Ideal
Сараcity
= 1300 PCU / hour / lane.
Traffic engineering
Chapter 9 Solutions
Traffic and Highway Engineering
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Similar questions
- (PLEASE USE FIGURE 14.5 TO ANSWER THE QUESTION) A consecutive upgrade consists of two sections, the first of 2 percent grade and 5000 ft long, and the second of 6 percent grade and 5000 ft long. Trucks comprise 10 percent of traffic. And recreational vehicles comprise 6 percent. Determine: the equivalent grade the PCEsarrow_forwardWhat is the capacity of a freeway with 2-lanes in one direction, 10 ft lanes, 1 ft shoulders and 4 ramps within a six-mile stretch? Show Work Correct Answer: 2335arrow_forwardH.W. For a two-way highway with information shown below determine future ADT and DHV. a design 20 years & construction on period of years, current ADT is 5500 vpd, annual growth rate of traffic is 4.5% per year.arrow_forward
- Given the data below: Daily Traffic Count Axle Load (Kips) 1000 (single axle cars) 300 (single axle buses) 120 (tandem axle trucks) 100 (tandem axle trucks) 50 (triple axle trucks) 22 40 50 50 SN is 5, P = 4.2, P; = 3, design life is 20 years, growth rate is 5%, lane distribution factor = 0.45 EASL Calculate the !arrow_forwardIf Vf = 2327 VPH with 9% trucks, VR1 = 653 VPH with 5% trucks, and VR2 = 594 VPH with 8% trucks, what is the passenger car equivalents (Vpcph) of the onramp? Assume that the roadway is urban.arrow_forwardSubject : Transportation engineering Please give me right solution according to the questionarrow_forward
- 4. TXDOT is working on the design of I-69 north of Victoria. They project a demand volume of 52,000 vehicles per day with a K factor of 0.12 and a directional distribution of 56/44 in level terrain with a target LOS of B and 17% trucks and buses. They plan to have roughly one diamond interchange every 2 miles. What number of lanes is required to achieve these design requirements? What LOS would occur for a typical 4-lane rural interstate design? DHV = AADT * K * D DHV – design hourly volume AADT - average annual daily traffic K- peak hour adjustment factor D- directional distribution (make design conservative)arrow_forwardQ3/ Show how to determine the number of lanes for a multilane minor arterial highway is being designed through a mountain rural area required to serve a current ADT of 5000 ypd. The following data should be used in solution: annual growth rate 4%, design, construction period = 22 years, percent of trucks 10 (pc equivalent factor= 2.0), peak hour factor 90% and the directional distribution factor 60%. %3Darrow_forwardFor a two-way highway with information shown below determine future ADT and DHV. a design 20 years & construction on period of 5 years, current ADT is 5500 vpd, annual growth rate of traffic is 4.5% per year.arrow_forward
- Oasis Freeway is a four lane road located in the Metro where trucks, buses, and rvs can be found aside from passenger cars. At some point further along the roadway there is a 5.5% upgrade that is 1.3 km long. If the traffic stream has 25% large trucks and buses and 5% recreational vehicles, what is the heavy vehicle adjustment factor?arrow_forwardA consecutive upgrade consists of two sections, the first of 2 percent grade and 5000 ft long, and the second of 6 percent grade and 5000 ft long. Trucks comprise 10 percent of traffic. And recreational vehicles comprise 6 percent. Determine: the equivalent grade the PCEsarrow_forwardFollowing table shows the prediction in the traffic of the road for a design period. Which one is the closest number to the design ESAL (W18) for this road (total ESAL) Load Number of Vehicle Type Equivalency Repeats Factor Compact car 0.0008 48,857,994 Buss 1.75 84,590 2 AX 0.7 497,585 З АХ 1.5 149,276 4 AX 2 84,590 5 AX 2.3 84,611 TAX (10,000 Ibs) 0.011 14,659 TAX (14,000 Ibs) 0.042 86,231 TAX (18,000 Ibs) 0.109 25,869 TAX (20,000 Ibs) 0.162 14,650 TAX (50,000 Ibs) 5.03 1,524 O 2.5 million O 0.75 million O 1.26 million 1.14 millionarrow_forward
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