Principles of Highway Engineering and Traffic Analysi (NEW!!)
6th Edition
ISBN: 9781119305026
Author: Fred L. Mannering, Scott S. Washburn
Publisher: WILEY
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Chapter 4, Problem 17P
To determine
The design life of the rigid pavement for drainage coefficient
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13. Refer to Figure 3.1 attached. In the flexible pavement design example illustrated in the figure, what would be the required structural number if designing for W18=2,000,000 instead?a. 1.5b. 4.3c. 6.1d. 7.3
Determine the required structure number of the pavement based on the following information: . . ESAL= 5 million Reliability = 99% Standard deviation = 0.45 • Pi = 4.5, Pt = 2.5 . Subgrade Mr=9,000psi
Discuss about the effect of overloading of trucks to the pavement condition.
Chapter 4 Solutions
Principles of Highway Engineering and Traffic Analysi (NEW!!)
Ch. 4 - Prob. 1PCh. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Prob. 10P
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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
- Q. Pavement design.arrow_forwardGiven a concrete pavement with a thickness of 8 in. (203 mm), a kvalue of 100 pei (37.1 MN/m³) doweled joints, and no concrete shoulders, determine the allowable repetitions under a 54-kip (240-kN) tridem-axle load based on erosion enteria. The Question is related to Highway and transportation Engineering.arrow_forwardNew flexible pavement is designed based on the following condition, use the design chart:arrow_forward
- section of a two-lane rural highway is to be realigned and replaced by a four-lane highway with a full-depth asphalt pavement. Consists of 40% trucks. If classification studies have shown that the truck factor can be taken as 0.45, design a suitable flexible pavement using the 1993 AASHTO procedure if the AADT on the design lane during the first year of operation is 1000. It is expected that construction will be completed five years from now, and pi =4.5 and pt = 2.5. Growth rate = 4%. Design life = 20 years. The pavement structure will be exposed to moisture levels approaching saturation 20% of the time, and it will take about one week for drainage of water. Effective CBR of the subgrade material is 7. CBR of the base and subbase are 70 (Mr=30000 lb/in2 ) and 22 (Mr=13500 lb/in2 ), respectively, and Mr for the asphalt mixture, 400,000 lb/in2 .arrow_forwardWhat are the ASHTO design considerations for flexible pavements? What are the ASHTO design considerations for rigid pavements? Give descriptions in each.arrow_forwardWhat is Falling Weight Deflectometer? How it can be used to determine potential of voids in rigid pavements?arrow_forward
- A section of a two-lane rural highway is to be realigned and replaced by a four-lane highway with a full-depth asphalt pavement. The AADT (both ways) on the existing section can be represented by 750 ESAL. It is expected that construction will be completed 5 years from now. If the traffic growth rate is 2 percent and the effective CBR of the subgrade on the new alignment is 9.0, determine a suitable depth of the asphalt pavement (in inches) using the AASHTO method. Take the design life of the pavement as 20 years. The resilient modulus of the asphalt (EAC) is 450,000 lb/in.2. Assume mi for the subgrade is 1 and the percent of traffic on the design lane is 45 percent. Use a reliability level of 90 percent, a standard deviation of 0.45, and a design serviceability loss of 2.0.arrow_forwardDiscuss the strategy of pavement evaluation process in detailarrow_forwardWhat are the ASHTO design considerations for flexible pavements? What are the ASHTO design considerations for rigid pavements? Give a brief description in each considerations.arrow_forward
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