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Impacts of Ownership and Multiplicity on Infrastructure Performance
There are a variety of provision arrangements for infrastructure services such as electricity, telecommunications, road networks, rail transport services, and water supply. Existing arrangements...

Hypermedia Support for Infrastructure Planning & Management
Good decisions are dependant on, but not guaranteed by, decision-makers having access to the right kind and format of information. However, some of today's infrastructure and management...

The TM? Railroad Track Management System
The TM$ Railroad Track Management System is designed to increase effective access to track performance data, to forecast the effects of deterioration and maintenance activity, and to formulate...

Highway Investment Analysis: The Next Generation
The Department of Transportation has developed and is now testing a state-of-the-art modeling procedure which simulates highway improvement selection decisions based on the relative benefits/cost...

French Road Works and Public Transport Investments
A detailed analysis of public highways and urban public transport investments over the period 1984-88, in sixteen French cities, has enabled us to conclude that these expenditures are...

Exploration of Ground Penetrating Radar for Railroad Tie Maintenance Scheduling
Assessment of railroad ties for replacement is currently performed by visual inspection. This paper describes a method of automated tie assessment using ground penetrating radar (GPR)...

Using Condition Indexes to Evaluate Local Railroad Track Networks
The U.S. Army Construction Engineering Laboratories (USACERL) have developed condition indexes for assessing track condition that apply to local railroads. Indexes were developed for the...

TRACK(1.0): A Railroad Track Design and Evaluation Computer Program for Work Planning and Budgeting
This paper describes TRACK, a track structural analysis method and computer program developed by the U.S. Army Construction Engineering Research Laboratories. TRACK is a program for evaluating...

Optimization of a Maintenance Station Network
This report is about a method for optimizing maintenance station and storage networks for maintenance of various traffic channels like streets, roads and sea channels. The results that...

Implementation of a District Level Highway Routine Maintenance Needs Assessment Program
A routine highway maintenance needs assessment program allows a transportation agency to establish a maintenance work program consistent with the objectives of a pavement maintenance management...

Cost-Benefit Evaluation of Network Level Pavement Management
This paper presents a cost-benefit analysis prepared for senior management. It uses the Alberta pavement management system as the primary case, and the Arizona PMS system as the second...

Congestion Management?Opportunities for States and MPOs to Ensure the Efficiency of Their Highway Systems
The Clean Air Act Amendments of 1990 (CAAA) and the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) are effecting change in multimodal transportation decision making....

TRACS: A Tool for Track Infrastructure Management
TRACS (Total Right-of-way Analysis and Costing system) combines engineering models with life-cycle costing techniques to estimate track maintenance and renewal costs as a function of track...

Highway Maintenance Data Collection: State of the Art
Existing procedures for recording highway maintenance and field inventory data re laborious and time consuming because the information is entered twice - first on standard paper forms...

Tie Model: A Crosstie Replacement Planning and Costing Model
The Tie Model described in this paper is a maintenance planning and life-cycle costing model for wood crossties. The model includes a number of different failure modules to predict crosstie...

Neural Network System for Automated Highway Pavement Inspection
A multi-layer perceptron back propagation neural network based methodology has been developed to process and analyze moire fringes obtained with an automated highway pavement inspection...

Planning Maintenance and Rehabilitation Activities for Local Railroads
This paper presents a structured approach for planning annual and long range (multi-layer) maintenance and rehabilitation (M&R) activities for local railroads. A method is presented...

Aggregate Quarry Operations?From a Railroad's Perspective
This paper describes a study which shows how a railroad company can ensure receipt of a cost-effective, high-quality aggregate product for ballast by monitoring selected quarry operations....

Infrastructure Management Using Geographic Information Systems
Before transportation professionals promote (Geographic Information System) GIS as the answer to infrastructure management, more debate is required. Current GIS packages do not have the...

GIS-Based Applications for Rail Infrastructure Analyses
Computer modeling and analysis techniques are important tools being used to evaluate impacts associated with transporting high-level radioactive waste to the proposed national repository...

 

 

 

 

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