Using the given data, design a road pavement for a 4-lane highway based on ATJ 5/85 (2013). Determine the total thickness of granular subbase if full depth asphalt pavement is used. ADT in one direction based on 24 hours survey: CV1 = 100 CV2 = 100 CV3 = 100 Steep terrain 20 years design period Annual traffic growth rate = 5% Subgrade CBR = 15%, no standard deviation

Using the given data, design a road pavement for a 4-lane highway based on ATJ 5/85 (2013). Determine the total thickness of granular subbase if full depth asphalt pavement is used. ADT in one direction based on 24 hours survey: CV1 = 100 CV2 = 100 CV3 = 100 Steep terrain 20 years design period Annual traffic growth rate = 5% Subgrade CBR = 15%, no standard deviation

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter19: Design Of Flexible Highway Pavements

Section: Chapter Questions

Problem 7P

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The maximum wheel load that the pavement could carry is 120 kN. If the contact radius of the wheel is assumed to be 250 mm, and subgrade bearing capacity is equivalent to 0.24 Megapascals, calculate the subgrade layer thickness of the flexible pavement in mm using the 45-deg cone pressure distribution method.
DESIGN OF A RIGID PAVEMENT1. Give a summary of rigid pavement design procedure by AASHTO method (1993), anddescribe the variables used in the method.2. Explain the CBR test; how to conduct the test and its purposes. Where are the usages oftest results in practical applications? Explain its advantages and disadvantages.3. Determine the thickness of a rigid pavement (thickness of concrete slab) by using thedata provided below:DATA PROVIDED:1. Cumulative 18kips ESAL = 5.000.0002. Overall standard deviation = 0.33. Reliability = 95%4. Design serviceability loose =1.75. Drainage coefficient = 16. Load transfer coefficient = 3.27. Mean concrete modulus of rupture = 650 psi8. Elastic modulus of the concrete to be used = 5.000.000psi9. Results of CBR test on subgrade material in the laboratory (Table 1):10. Standard force-penetration data.
12. Soil compaction is important information to be controlled during the execution of geotechnical works. An example of problems caused by poor compaction of materials are permanent deformations such as those observed in the existing pavement between Corumbá and the ports of Santos (SP) and illustrated in Figure 1. In an article published on 02/03/2022 in the newspaper Correio do Estado (https://correiodoestado.com.br/cidades/excesso-de-peso-faz-da-br262-uma-rodovia-de-alto-risco/397089) states that "in this region, the base of the landfill is fragile due to account of the inappropriate material used when building the road in the 1980s. Inadequate compaction also caused erosion problems (Figure 2) on the wall built by the United States on the border with Mexico, as published on the official website of the United States Homeland Security at 01/30/2021 (https://www.dhs.gov/news/2021/04/30/dhs- announces-steps-protect-border-communities-wall-construction). Figure 1. Surface sinking…
DESIGN OF A RIGID PAVEMENT Give a summary of rigid pavement design procedure by AASHTO method (1993), and describe the variables used in the method. Explain the CBR test; how to conduct the test and its purposes. Where are the usages of test results in practical applications? Explain its advantages and disadvantages. Determine the thickness of a rigid pavement (thickness of concrete slab) by using the data provided below: DATA PROVIDED: Cumulative 18kips ESAL = 5.000.000 Overall standard deviation = 0.3 Reliability = 95% Design serviceability loose =1.7 Drainage coefficient = 1 Load transfer coefficient = 3.2 Mean concrete modulus of rupture = 650 psi Elastic modulus of the concrete to be used = 5.000.000psi Results of CBR test on subgrade material in the laboratory (Table 1): 10. Standard force-penetration data.
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
In one road project , for rehabilitation existing pavement by overlay technique , the effective structural number of existing pavement ( SNeff may be determined in two ways , NDT and condition survey . If the NDT value is 4.89 and the value of the condition estimation is 5.25 , the SNeff will be *
Do not give wrong answer. I will surely downvote A highway embankment with a volume of 800,000 cy is being constructed by compacting dry gravel borrowed from a nearby site. In its natural state, dry gravel has a density of 1,660 kg/m³ with a swell percentage of 12.5% and a shrinkage factor of 0.85. (a) Calculate the loose density of the gravel in kg/m³. (b) Calculate the load factor. (c) Calculate the compacted density of dry gravel in kg/m' and compact factor." (d) Calculate the volume of the required material in bm.
Please solve the below question and give the solution in m3/day/m2 only not in feets. please solve it as early as possible. Determine the ground water infiltration rate for a new four-lane pavement with the following characteristics: Lane width = 3.6m Shoulder width = 3m Length of contributing transverse cracks (Wc) = 12m Rate of infiltration (Kp) = 0.015 m3/day/m2 Spacing of transverse cracks = 12m
Given 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.
Assume that the overall pavement evaluation of Interstate highways in a district consists of four categories: Surface distress index = 75, drainage index = 80, roughness index = 85, and structural index = 90. For all indices, 100 represents the best condition. Calculate the overall pavement index (OPI) of the interstate highways in this district, if the relative weights of different indices are 0.20, 0.25, 0.28, and 0.27, respectively.
New flexible pavement is designed based on the following condition, use the design chart:
A transportation agency is planning a pavement roughness data collection program to monitor statewide pavement performance. Assuming that 10 percent of change in roughness should be detectable at 95% confidence level, how many 1-mile pavement segments should be included in the annual condition survey? There are 20,000 center-line miles of pavement in total.