Development Impact Assessment with Transportation Models
The use of microcomputers in urban transportation modeling is having a major impact on the traffic engineering and planning profession. Between the late 1950's and early 1980's, most modelling...
The Application and Use of Impact Fees: Legal Issues
Local governments in the United States are empowered, in varying degrees to regulate land use and to provide adequate public facilities to serve new growth. To meet the substantial costs...
Three-Dimensional Eulerian-Lagrangian Transport Model
An Eulerian-Lagrangian algorithm, based on operator-splitting techniques has been formulated for the three-dimensional advection-diffusion equation. This combines the advantage of a fixed...
A Graphical Post-Processor for CE-QUAL-W2
A directly linked graphical post-processor has been developed for the Corps of Engineers' CE-QUAL-W2 (W2) Model. The post-processor allows the quick visualization and verification of the...
A Study of Salt Transport Processes in Delaware Bay
The study described here is a subset of a broader climate-related study, and is focused primarily on salinity intrusion into Delaware Bay and River. Given changes in freshwater discharge...
The Importance of Density Driven Circulation in Well Mixed Estuaries: The Tampa Bay Experience
This paper addresses the importance of the effects of baroclinicity in subtidal dynamics of a well mixed estuary, Tampa Bay. The analysis is based upon numerical simulations using a three-dimensional,...
Application of a Boundary Fitted Coordinate Mass Transport Model
A three-dimensional, boundary fitted coordinate, finite difference, mass transport model was applied to the Providence River in Upper Narragansett Bay, Rhode Island. The governing advection-diffusion...
Assessing
The New York Bight had been receiving waste disposals, dredged spoils and acid dumps for the past 30-40 years causing accumulation of trace metals such as Cu(II) in water and sediment....
A Semi-Implicit Finite Difference Model for Three-Dimensional Tidal Circulation
A semi-implicit finite difference formulation for the numerical solution of three-dimensional tidal circulation is presented. The governing equations are the three-dimensional Reynolds...
Modelling of Coastal Circulation in Singapore Waters?A Hybrid Approach
A hybrid modelling technique which involves the integration of numerical and physical models has been used to study tide induced circulation in Singapore coastal waters. The modelling...
A Modified Adjoint Method for Inverse Eddy Viscosity Estimation for Use in Coastal Circulation Models
The adjoint method is used to develop an objective analysis technique for estimating the vertical eddy viscosity used in three dimensional oceanic models. A cost functional which consists...
Evaluating Spillway Adequacy
More than a third of all dam failures are caused by overtopping. Equipment malfunctions or operations errors are sometimes to blame, but the principal cause is inadequate spillway capacity....
New Hong Kong International Airport
The airport at Kai Tak has served as a viable commercial operation since the lat 1930s and has played a pivotal role in the territory's development. The fact that Kai Tak has a finite...
Customer Requirements in Industrialized Housing
Residential construction efforts in the U.S. are highly fragmented, and this has slowed the application of new technologies. While there has been an increase in the use of manufactured...
Evaluating the Effectiveness of Transportation Control Measures for San Luis Obispo County, California
The San Luis Obispo Air Pollution Control District has developed simple techniques to estimate emission reductions from various Transportation Control Measures. Accurate emission estimates...
Laboratory Tests of Modal Emissions and Off-Cycle Corrections to FTP-75
The modeling of emissions from on-road mobile sources is an on-going process. Two broad topics which are currently under study are the evaluation of driving cycles and the development...
Developing Protocols for Motor Vehicle Air Quality Modeling
This paper is directed to air quality analysts. It examines the issues surrounding a modeling protocol and how to work effectively with a traffic engineer on a project to model carbon...
The General Theory of Quantitative Risk Assessment
From the many individual applications of quantitative risk assessment (QRA) that have been made in various fields, this paper abstracts and lifts out the concise, simple, and elegant cluster...
Aversion to Epistemic Uncertainties in Rational Decision Making: Effects on Engineering Risk Management
When faced with epistemic uncertainties in a decision problem, subjective expected-utility theory (SEU) implies that the only relevant characteristic of these uncertainties is the mean...
On Deciding Between the Use of Engineering Standards and Risk Analysis
Risk analysis offers advantages for the optimal design and maintenance of infrastructure, but it is not always practical to apply due to the nature of certain types of infrastructure....
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