Journal of Infrastructure Systems: Recent submissions
Now showing items 1021-1040 of 1280
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Evaluating the Effectiveness of State Department of Transportation Investment Decisions: Linking Performance Measures to Resource Allocation
(American Society of Civil Engineers, 2006)In recent years, many state departments of transportation (DOTs) have developed performance measures to monitor their transportation systems and improve transportation planning. One of the main outstanding questions with ... -
Methodology for Ranking the Elements of Water-Supply Networks
(American Society of Civil Engineers, 2006)This paper presents a scenario-based methodology for the ranking of the elements of a water-supply network according to their value to the network’s owner. The failures of the elements due to random causes and to malevolent ... -
Glancing-Blow Impact Forces by a Barge Train on a Lock Approach Wall
(American Society of Civil Engineers, 2006)In 1993 Headquarters, U.S. Army Corps of Engineers, issued the first formal Corps-wide analysis procedure providing guidance for analyzing the effects of barge impact loading on navigation structures. The guidance was ... -
Generalized Economic Modeling for Infrastructure and Capital Investment Projects
(American Society of Civil Engineers, 2006)Economic modeling and risk analysis are important processes for the appraisal of infrastructure and revenue-generating projects such as build-operate-transfer (BOT) projects. These processes have been commonly implemented ... -
Simple Model for Structural Evaluation of Asphalt Concrete Pavements at the Network Level
(American Society of Civil Engineers, 2006)Evaluation of the structural conditions and estimation of the remaining structural life of each pavement section are important considerations for prioritizing the maintenance needs of any highway network. Many highway ... -
Estimation of Pavement Performance Deterioration Using Bayesian Approach
(American Society of Civil Engineers, 2006)This paper investigates an incremental pavement performance model based on experimental data from the American Association of State Highway Officials road test. Structural properties, environmental effects, and traffic ... -
Knowledge Discovery in a Facility Condition Assessment Database Using Text Clustering
(American Society of Civil Engineers, 2006)Knowledge discovery in databases (KDD) has been applied in many different areas of study including DNA sequence analysis, pattern discovery, document classification, image recognition, and speech recognition. This paper ... -
Failure Investigation of a Foamed-Asphalt Highway Project
(American Society of Civil Engineers, 2006)This paper documents an investigation into the cause of structural distress (alligator cracking and deep rutting) found in a foamed-asphalt warranty project in Texas. This is a unique forensic study involving a warranty ... -
Real Options by Spreadsheet: Parking Garage Case Example
(American Society of Civil Engineers, 2006)This case study shows how designers of infrastructure systems can evaluate flexibility in engineering systems in fairly simple ways. Specifically, it illustrates a spreadsheet approach to valuing “real options” in a project. ... -
Transportation Choices and Air Pollution Effects of Telework
(American Society of Civil Engineers, 2006)Telework has emerged as a possible solution to transportation-related air pollution problems. This paper analyzes, both deterministically and probabilistically, a California-based 1-day telework scenario, and explores how ... -
Simplified Numerical Method to Evaluate the Mechanical Strength of Cast Iron Water Pipes
(American Society of Civil Engineers, 2006)The problem of aging water pipes, resulting in leaks and breaks, affects municipalities worldwide. Mechanical failures of small-diameter pipes occur generally by circumferential cracking due to longitudinal bending. Most ... -
Comparative Analysis of Water Vulnerability Assessment Methodologies
(American Society of Civil Engineers, 2006)amended -
Policy Development for Infrastructure Networks: Concepts and Ideas
(American Society of Civil Engineers, 2006) -
Delay between Sensing and Response in Water Contamination Events
(American Society of Civil Engineers, 2006)Determining the consequences of a water contamination event is an important concern in the field of water systems security. Morbidity and mortality resulting from such a contamination are influenced in part by the amount ... -
Contingency Planning in Project Selection Using Multiobjective Optimization and Chance Constraints
(American Society of Civil Engineers, 2006)We present a multiobjective optimization model for determining an efficient budget allocation for a portfolio of infrastructure projects. The model takes into account both the cost and the priority rank of each project ... -
Decision Methodology for Allocating Funds across Transportation Infrastructure Assets
(American Society of Civil Engineers, 2006)One of the main activities in transportation infrastructure asset management is the allocation of available funds across infrastructure classes (e.g., pavements, bridges, signs) or programs (e.g., maintenance, construction). ... -
Simultaneous Layout and Size Optimization of Water Distribution Networks: Engineering Approach
(American Society of Civil Engineers, 2005)A heuristic method is presented for the simultaneous layout and component size optimization of water distribution networks. The method is based on the engineering concept of reliability in which the number of independent ... -
Web-Based Pavement Infrastructure Management System
(American Society of Civil Engineers, 2005)This paper describes the functional characteristics of a web-based infrastructure management system (IMS) that includes geotechnical and structural data and analysis tools. The addition of structural and geotechnical data ... -
XML-Based Inspection Modeling for Developing Field Inspection Support Systems
(American Society of Civil Engineers, 2005)Inspection activities such as bridge inspection generally rely on using paper-based forms for documenting the inspection results. However, recent advances in computer technology, where the hardware is getting smaller in ... -
Automated Detection and Classification of Infiltration in Sewer Pipes
(American Society of Civil Engineers, 2005)Many researchers have reported on the poor status of sewer pipes in Canadian cities, revealing the presence of a number of defects that impact their performance. Inadequate inspection is considered one of the main causes ...