Oxygen Transfer Studies in Activated Sludge
A bench-scale research project was undertaken to evaluate the two-film model for predicting oxygen transfer rates in sparged suspended growth systems and to determine if interfacial oxygen...
Automated People Movers?The Need for Flexibility and Clarity
The Airtrans System at Dallas/Ft. Worth Airport is the best example available of how an automated people mover (APM) might function in an urban setting. An examination of Airtrans shows...
Time-Dependent Damage and Creep of Brittle Rock
In this paper, some results of a combined analytical-experimental study of the relationship between subcritical microcrack growth due to stress corrosion and the time-dependent deformation...
Energy Forecasting Techniques: An Overview
This paper provides an overview of the primary forecasting techniques employed by electric and natural gas utilities to predict energy consumption and demand. Although the techniques discussed...
Regional Planning Models Used in Subarea Windows
The typical regional travel-forecasting model has historically been confined to use on a mainframe computer. In an effort to reduce costs and allow computer hardware options, a three-tiered...
Use of a Simplified Urban Traffic Forecasting Procedure for Project Analysis
This paper presents New York State Department of Transportation's experience with the calibration and testing of a simplified procedure for estimating urban traffic at the...
Redecking with Precast Keeps Traffic Moving
The Woodrow Wilson Memorial Bridge in Washington, D.C. could not be closed to traffic while a new deck was constructed. The engineers designed a precast prestressed and post-tensioned...
Studying Water System Operation by Computer
Computer modeling can greatly improve the planning and operation of water systems at relatively low cost. Time-dependent water system models can be used to refine improvements to a water...
Stochastic Analysis and Modeling Levels of a Land-Locked Lake for Resource Development
Lakes are valuable natural resources that can be tapped for recreational, agricultural and other extensive lake side developments. Natural variability of lake levels is an important factor...
A New Panama Canal?
The Panama Canal is expected to be obsolete by the end of the century. Already there are serious problems with ship traffic through the Canal: volume of traffic is down, average transit...
Policy Analysis Implications of Four Cogent Transportation Topics
Using a goal-group policy-analysis scheme and from his experience on Capitol Hill, the author documents his observations on the cogent transportation topics facing the United States in...
What Future for America's Railroads?
The public sees America's railroads as old, rundown, bankrupt and unreliable. However, after decades of decline, the rate of return on investments has begun to show a steady...
Stadium Completed Night Before Game
Construction problems with a major addition to the Clemson Memorial Stadium in Clemson, S.C., halted construction for four months. In order to make up the time, the design firm had to...
Intercity Bridge: First Major U.S. Cable-Stayed Bridge
The Intercity Bridge spans the Columbia River, connecting the cities of Pasco and Kennewick, Wash. It is the longest cable-stayed, concrete bridge in the U.S. (2,403-ft) and it has been...
Urban Freeways and Changing Social Values
One key reason for undertaking the $90 billion Interstate Highway System �even though the name may not so indicate? was traffic congestion in and near cities. The intercity segments of...
Urban Transportation Planning
Sources of Information on Urban Transportation
This book is a review of the procedures followed in the comprehensive urban transportation planning process including a history of its development, trip generation, trip distribution methods,...
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