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Author: Hosin Lee
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 134
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Book Description
Author: Hosin Lee
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 134
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Book Description
Author: W. Ronald Hudson
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 114
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Author: Stephen Horton
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 144
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Book Description
Author: W. Ronald Hudson
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 48
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Author: United States. Federal Highway Administration
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 272
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Book Description
Author: Jea Won Hwang
Publisher:
ISBN:
Category :
Languages : en
Pages : 176
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Book Description
The Texas Department of Transportation (TxDOT) is concerned about the widening gap between preservation needs and available funding. Funding levels are not adequate to meet the preservation needs of the roadway network; therefore projects listed in the 4-Year Pavement Management Plan must be ranked to determine which projects should be funded now and which can be postponed until a later year. Currently, each district uses locally developed methods to rank and prioritize projects. These ranking methods have relied on less formal qualitative assessments based on engineers' subjective judgment. It is important for TxDOT to have a rational 4-Year Pavement Management Plan. The objective of this study is to develop a conceptual framework that describes the development of the 4-Year Pavement Management Plan and a proposed ranking process. It can be largely divided into three steps; (1) Network-Level preliminary project screening process, (2) Project-Level project ranking process, and (3) Economic Analysis. A rational pavement management procedure and a project ranking method that are accepted by districts and the TxDOT administration will maximize efficiency in budget allocations and help improve pavement condition. As a part of this study, based on the data provided by the Austin District Pavement Engineer, the Network-Level Project Screening (NLPS) tool, including the candidate project selection algorithm and the preliminary project screening matrix, is developed. The NLSP tool has been used by the Austin District Pavement Engineer (DPE) to evaluate the PMIS (Pavement Management Information System) data and to prepare a preliminary list of candidate projects for further evaluation. The automated tool will help TxDOT engineers easily incorporate the developed mathematical algorithm into their daily pavement maintenance management.
Author: W. Ronald Hudson
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 116
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Author: Donald R. Smith
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 214
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Book Description
This project pertains to the design and implementation of a microcomputer database system to interface with the current TxDOT statewide mainframe PMIS system. Persons interested in the statewide PMIS system should direct inquiries to the Pavement Management Section Design Division, Texas Department of Transportation. This effort, conducted over a five-year period, has produced a now operational DOS/Windows-based system to download data and pavement scores from the TxDOT mainframe system in Austin, Texas. The system's design is based on the DOS-based DataEase relational database system. Collected pavement data and associated scores are down loaded from Austin to Pharr via 3270 communications link. The import data file is produced by a SAS-JCL job that produces an ASCII file suitable for importation into the district's microcomputer PMIS. Importing at the district level is accomplished by matching the reference marker location fields in the import files to the district level database receiving file's reference marker location fields. The district-level system is then used to assist district personnel in retrieving, sorting, and presenting information (pavement scores) in a timely manner. The system possesses the capability to adjust/modify the data summarization reports and plots to suit individual situations with short time intervals. The current design consists of 10 separate database files, one for each county comprising District 21. The files are structured to store location collected pavement data and associate pavement scores based upon 0.1 mile increments. The current design stores ride, skid, falling weight, and visual data. An additional database file supports the temporary archiving of critical highway segments based upon prespecified critical score values. This file can be sorted in numerous ways in order to rank segments as required and to aid in the formulation of maintenance/rehabilitation strategies within the district.
Author: Ralph C. G. Haas
Publisher: McGraw-Hill Companies
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 488
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Book Description
Author: Nasir Ghaleb Gharaibeh
Publisher:
ISBN:
Category : Information storage and retrieval systems
Languages : en
Pages : 129
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Book Description
