Transit Scheduling Using Computer Graphics
Graphical scheduling has been very popular throughout the world, but until recently, has not been available for a computerized scheduling system. Computerized graphical scheduling systems...
Scheduling Fixed Route Bus Services Using Simulation
The paper discusses the development and applications of a Monte Carlo simulation Program (BUS - MONITOR) for estimating and evaluating the quality of service of fixed route, many to many...
GRREATdB - GRaphic Roadway Editor and Analysis Tool
This paper describes the development and use of a tool to link textual databases to road network-based interactive graphics. Advantages of the system are discussed. The GRREATdB program...
Maximizing Your Use of Interactive Graphics in Transportation Simulation Modeling
The paper discusses the capabilities, through the aid of computer graphics,now that exist to take analysis and reporting of traffic simulation model studies several steps further than...
A Survey of Three-Dimensional Numerical Estuarine Models
This paper surveys the existing 3-D estuarine hydrodynamic and solute transport models by a review of the commonly used assumptions and approximations, and by an examination of the methods...
An Eulerian-Lagrangian Model for Sediment Transport in Estuaries
We describe a new depth-averaged numerical model for the simulation of the fate of sediments in estuaries. The model, denoted ELAsed, includes the following distinctive characteristics:...
Hydrodynamic Modeling on Vertically Mixed Bays
Extensive model-data comparisons of sea surface elevations and vertically-averaged velocities are performed on the Peconic Bays Estuary, New York, a system of interconnected bays where...
A 3D-Stereo Graphics Interface for Operational Great Lakes Forecasts
A system for real-time predictions of Great Lakes physics and transport characteristics is now being implemented. The full 3D nature of the predictions demands accurate, high speed computer...
On Numerical Strategies of Estuarine and Coastal Modeling
Numerous numerical models of circulation and transport for estuarine and coastal waters have been developed. A variety of numerical techniques are used by these numerical models. This...
Multi-Dimensional Modeling of Hydrodynamics and Salinity in San Francisco Bay
This paper presents a modeling study of salt intrusion into San Francisco Bay that used a three dimensional finite element model capable of different approximation levels in different...
Technical Work on Flexible Pipe/Soil Interaction Overview?1990
Research in the laboratory and field have been ongoing for the past seventy years on flexible pipe/soil interaction. Virtually all of the early work was done on steel pipe. During the...
Numerical Analysis of Flexible Culverts in Layered Soils
The deformation of flexible culverts is analysed using the finite element method as tool. Results of calculations for installation, traffic and time dependent loads are presented for culverts...
Behavior and Design of Gravity Earth Retaining Structures
This paper summarizes recent research on the soil-structure interaction of gravity earth retaining structures and provides new design procedures for these structures. The procedures currently...
Finite Element Analysis of Hillslope Variations in Surface Runoff
Watershed management decisions are aided through an accurate understanding of hydrologic processes. The finite element method applied to surface runoff with spatially variable hydraulic...
Environmental Compliance and River Maintenance on Santo Domingo Pueblo, New Mexico
River maintenance activities within the boundaries of the Santo Domingo Pueblo on the Rio Grande have departed from the traditional channelization philosophy and employed engineering methodologies...
Summary Report: Evaluation Criteria for Watershed Models
After an extensive literature review, the Task Committee recommends that, in addition to graphical plots, modelers use three simple goodness-of-fit criteria for evaluating continuous hydrograph...
Rehabilitation and Modernization of Irrigation Projects is Often a Cover-up for Poor Quality Construction and Maintenance
Decreasing land and water resources available for irrigation projects is placing greater empasis on rehabilitation and modernization of irrigation projects. Inferior quality of the initial...
Understanding Delivery Performance Before Rehabilitation
In the initial stages of project formulation, decisions are made regarding the method for allocating water, and the method for physically distributing water. Any major rehabilitation effort...
Development of an Underwater Canal Lining Method
The U.S. Bureau of Reclamation is developing a method of lining a large irrigation canal in-place while water flows in the canal, using an impermeable plastic membrane covered with concrete....
Practical Approaches Used in Neutron Meter Moisture Monitoring
This paper describes a practical, appropriate methodology for utilizing neutron meter soil moisture measurements to provide irrigation management information to farmers. A neutron meter...
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