Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Chapter 21, Problem 17P
To determine
The differences between condition and priority assessment models used in pavement developing improvement programs.
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- ASSIGNMENT INSTRUCTION A Pavement Management System (PMS) is a set of tools or methods that can assist decision in finding cost effective strategies for providing, evaluating, and maintaining a road bridge in good serviceable condition that provide a variety of facilities for users. Straddling the service, these enabling users to enjoy the facilities offered at each bound of the roadway as to view the traffic below. Based on Pavement Management System tools, conduct the study to investigate the roadway bridge or walkway bridge across the road included the planning strategies, design of construction and the problem may be observed and analysis of benefits over cost ratio. Please discuss with your lecturer regarding the area of study. With 2 persons per group, write and prepare the report according to the Pavement Management System with more discuss on the function of a roadway bridge, pedestrian or walkway bridge across the road and effect on traffic flow. The report must be prepared…arrow_forwardihal exam II. Identification. Identify the following terms 1. a little covered opening in a floor, pavement, or other surface that allows a person to enter, especially one that leads to a sewer in a city street. 2. The time frame in which the analysis will be carried out 3. is a process that aims to restore the structural effectiveness of the pavement while also providing superior riding and skid resistance. 4. The creation of one or more alternative routes or corridors is included in a broader analysis of the entire area. 5. It is the distance if one track to other. No new data to save. Last cherkedarrow_forwarda) As a pavement inspector, you are assigned to assess a pavement condition. Following photographs were taken during a survey from 2 locations of the pavement. Figure 1: Location 1 Figure 2: Location 2 Describe these distresses with possible causes and repair techniques.arrow_forward
- Q9. The preventive rehabilitation technique is that which involves: a) surface applications of either structural or nonstructural improvements intended to keep the quality of the pavement above a predetermined level b) all means that enables the designer to consider each maintenance alternative in terms of a final product and then select the most appropriate one in terms of results desired and cost. c) the permanent or temporary repair of deficiencies on an as-needed basis d) a and b e) b and c Q10. When compacting a soil at wet to optimum, then; a) the soil fabric is oriented and it has lower permeability b) the soil fabric is dispersed and it has lower permeability c) the soil fabric is dispersed and it has a higher strength d) the soil fabric is dispersed and it has a lower strengtharrow_forwardQ: Discuss various Design, Construction, and Supervision factors causing pavement failures? Subject: Pavement Structure and design. Program: MS in Transportation Engineeringarrow_forwardPavement Design and Analysis - Design a HMA pavement structure for a 6-lane divided urban highway using the AASHTO method to accommodate the traffic loads and conditions as follows. Give two alternative layer thickness combinations.arrow_forward
- Discuss the pros and cons of JPCP versus JRCP. What is meant by the mechanistic-empirical method of pavement design? Is it possible to develop a wholly mechanistic method of pavement design? Why?arrow_forwardWhy should the effective structural capacity of an existing pavement earmarked for rehabilitation to extend its service life be evaluated?arrow_forward6- Mention and describe four geotechnical parameters in AASHTO's empirical design method separately for each of asphalt and concrete pavements.arrow_forward
- Define precisely the difference between pavement serviceability and performance. Using a sketch to indicate the concept of remaining service life of a pavement segment.arrow_forwardDetermine the base thickness of plain concrete pavement (PCP) without dowelled joints using the information and charts provided be • Desired project reliability - 85% Subgrade design CBR-6% • Design period -30 years • Design Traffic 5.0*10* HVAG(B) Note: The information obtained from each table or figure must be stated in the examination script to obtain relevant marks. Table 3.1: Minimum subbase requirements for rigid pavements Design traffic (HVAG) Subbase type 125 mm bound Up to 10⁰ Up to 5x10 150 mm bound or 125 mm LCS Up to 1x10 170 mm bound or 125 mm LCS 150 mm LCS Greater than 1x 10 1 Under CRCP, a heavily bound subbase with an asphalt surfacing is an acceptable alternative 75 Maximum permitted value CBR % Effective subgrade strength used in concrete base thickness determinations 60 50 40 35 30 25 20 15 12 10 Concrete Base 200 Thickness 190 (mm) 180 8. Pavement type 7. 6. 5. PCP Dowelled & CRCP 260 250 240 230 220 210 170 160 150 140 150mm LCS 125mm LCS 8 10 Design subgrade…arrow_forwardBriefly define facility and user costs for pavement work.arrow_forward
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