A Network Optimization Methodology for Pavement Management PDF Download
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Author: Venkatesh Ravirala
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
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Book Description
Author: Venkatesh Ravirala
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The priority assessment analysis method, as a part of a Pavement Management System, is the most appropriate one for short and medium term road network improvement planning, while the network optimization methods serve for the long term policy defining. Their optimization criteria are expressed in different terms. Both systems may represent two stages of a unique planning process - a conceptual and a detailed one. To use these systems for such purposes their results must be compatible. Optimal strategies from both investors and users points of view, obtained by the network optimisation method, were introduced into HDM - III, avoiding the Expenditure budgeting Model (EBM). All the results were translated into the same units or criteria. The predicted effects, especialy those that consider the use of available resources, were better than those obtained by the standard procedure. The relations between the users and the agency costs for different traffic categories and budgeting levels were observed. Such an approach meets the needs of networks which are far from an optimal steady state. For the covering abstract of this conference see IRRD number 872978. (A.
Author: Fengxian Liu
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 350
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Book Description
Author: Kathryn A. Zimmerman
Publisher: Transportation Research Board
ISBN: 9780309058667
Category : Technology & Engineering
Languages : en
Pages : 108
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Book Description
This synthesis will be of interest to highway administrators; pavement management system (PMS), maintenance, and computer engineers; and technologists involved with data collection and computer programming for the purposes of a PMS. This synthesis describes the state of the practice with respect to pavement management methodologies to select projects and recommend preservation treatments. This report of the Transportation Research Board also describes the predominant pavement management methodologies being used by U.S. state and Canadian provincial transportation agencies; provides a general description of each methodology; and summarizes the requirements, benefits, hindrances, and constraints associated with each. It includes a review of domestic literature and a survey of current practices in North America. In addition, case studies are included to illustrate the use of these methodologies within transportation agencies. Operational and soon-to-be implemented technologies are also discussed, and an extensive bibliography is provided for further reference.
Author:
Publisher:
ISBN:
Category : Mathematical optimization
Languages : en
Pages : 204
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Author: Omar Ghaleb Smadi
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
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Author: Suresh Venukanthen
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 60
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Book Description
A computerized method has been developed to conduct network optimization analysis. The analysis uses performance models along with life-cycle cost analysis to identify the most effective treatment to be applied for a specific pavement section. Performance models were developed for the most common maintenance treatments: sand and chip seals, and rehabilitation treatments: overlay, roadbed modification, and mill and overlay. The models were developed using actual pavement management data collected on field sections for the past 15 years. The life-cycle cost analysis uses the present worth approach along with actual cost figures for initial and annual construction activities. The individual treatments are used to create alternatives that can provide the acceptable performance level for a given pavement section over the entire analysis period of 20 years. The annual performance of pavement sections is modeled in terms of the present serviceability index (PSI). The most effective treatment alternative is selected based on the highest benefit cost ratio which is defined as the ratio of area under the PSI versus time curve divided by the total cost of the alternative. Once the most effective alternative is selected for each pavement section, a summary of the annual expenditures is provided for the group of pavement sections that have been selected for analysis. The group of projects can be the entire network or a group of pavement sections that have been selected by the engineer.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 120
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Book Description
Papers presented at this session include: recent developments and potential future directions in ranking and optimization procedures for pavement management (cook, wd and lytton, rl); sample size selection (scullion, t, lytton, rl and templeton, cj); the economic optimization of pavement maintenance and rehabilitation policy (markow, mj, brademeyer, bd and sherwood, j); achieving efficiency in planning and programming through network-level policy optimization and pavement management (paterson, wdo and fossberg, pe); a dynamic programming approach to optimization for pavement management systems (feighan, kj, shahin, my and sinha, kc); a decomposition approach for rehabilitation and maintenance programming (gendreau, m); a computationally efficient system for infrastructure management with application to pavement management (nesbitt, dm and sparks, ga); a micro-computer markov dynamic programming system for pavement management in finland (thompson, pd, neumann, la and miettinen, m). for the covering abstract of the conference see irrd 807044.
Author: J. R. Mbwana
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: A. Kitaha
Publisher:
ISBN:
Category : Budgetary allocation
Languages : en
Pages : 18
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Book Description
A common practice followed to rate the pavement surface condition is to use the ASTM D5340-12 procedure and estimate the pavement condition index (PCI) that helps prioritize maintenance needs and assists developing a pavement management system (PMS). However, ASTM-PCI that is dependent on time-based evaluation may not be suitable where there is a lack of historical records and it is being undertaken for the first time. To estimate a pavement's current PCI during the non-availability of historical data and establish a PMS incorporated with prioritized maintenance and optimized budget, a rational engineering criteria (EC) based methodological approach is required that is as robust as ASTM D5340-12. Thus, the objective of this study was to develop a rational EC-based prioritization-optimization process PMS (POPMS) algorithm for a network that prioritizes maintenance strategies for identified pavement distresses and hence optimizes maintenance costs depending on budgetary allocations. An EC-based POPMS algorithm was based on a network length of 100.55 km, which followed prioritization-optimization process for single to multi-year programs. EC-PCI of pavement sections were estimated on the basis of segmented maintenance strategies including preventive and routine maintenance and reconstruction. EC-PCI was found to be rational since three distinct threshold zones were considered that could directly assign pavement maintenance strategies, which was straightforward and circularly referenced. Overall, POPMS algorithm facilitates practitioners to modify the threshold EC-based parameters that will estimate an optimal single/multiyear budget for maintenance as per the newly set threshold level, thus creating a whole new promising approach in the areas of roadway network level maintenance programs.
