An Urban Hydrology Model for the Personal Computer
The use of personal computers to evaluate the effects of urbanization on the hydraulic response characteristics of a watershed is discussed in this paper. Specifically, the use of a group...
Micro-Illudas for Urban Drainage Design
The Illinois Urban Drainage Area Simulator (ILLUDAS) was developed at the Illinois State Water Survey in 1969 and has been available for use on mainframe computers since 1974. An enhanced...
TR-55 Microcomputer Implementation
Microcomputer software is now available which implements the Soil Conservation Service's recently revised 'Urban Hydrology for Small Watersheds',...
Underground Drainage of Urban Runoff from Natural Depressions
A unique subsurface system was designed and implemented for draining such a natural depression in the City of West Lake Hills, Texas. This subsurface drainage system uses a part of the...
Evaluation of Stormwater Management Structures in Maryland Proportioned by SCS TR-55
Various state and local agencies in Maryland are requiring that the Soil Conservation Service Technical Release 55 be used to evaluate impact of urbanization on peak rates of discharge....
Design Criteria for Detention Basins in Urban Drainage
Many communities require the use of detention basins in order to manage the increased runoff discharge in all newly developing watersheds. The authors have shown earlier that the typical...
Flood Operation Studies of the Valdesia Reservoir System in the Dominican Republic
The Valdesia reservoir system, located on the Nizao River in the Dominican Republic, is designed to provide irrigation water to the Nizao project areas and hydroelectric energy to the...
Multi-purpose Stormwater Detention Facility Completed as First Phase of Englewood, Colorado, Flood Control Project
In 1980 the City of Englewood Urban Renewal Authority proceeded with planning for flood control improvements along Little Dry Creek. The selected plan includes capacity improvements for...
Results of a Regional Synthetic Unit Hydrograph Study
Selected results of a regional synthetic unit hydrograph study are presented. Using the gamma function to approximate the SCS curvilinear unit hydrograph, peak rate factors were determined...
The Dallas Floodway Project
This paper explores the history of the Dallas Floodway project, past performance of the project under various flood conditions, recently updated hydrologic and hydraulic evaluations, and...
A New Method for Synthesizing a Six Hour Unit Hydrograph
A new methodology was devised that would use readily available basin physical parameters for the determination of unit graphs in undeveloped and ungaged areas. Rather than using small...
Modeling Dual-Ring Actuated Signals with TRANSYT-7F
Current and potential future methods of using the TRANSYT-7F computer program to model dual-ring actuated traffic signals are discussed. First the problems encountered in using this fixed-time...
Activity Center Development Impact Analysis
A flexible microcomputer spreadsheet analysis method is described for analyzing area-wide and localized impacts of new development in urban or suburban activity centers. The analysis approach...
Evaluation and Testing of Travel Demand Software
Transportation planners are frequently confronted with issues and concerns related to varying levels of analysis detail. Although microcomputer packages exist to analyze regional, corridor...
Census Data in Travel Demand Model Development
The New Jersey Department of Transportation purchased the Statewide 1980 Census Urban Transportation Planning Package (UTPP) and began offering this information to other Government Agencies...
Downloading Baltimore Regional Databases
The Regional Planning Council (RPC) now is exploring through trial-and-error, the most effective, efficient means of performing travel demand forecasts cooperatively with its 'clients....
Mapping New York City from the Shelf
Data processing and management information systems are a cornerstone of the operating environment and capabilities of New York City (NYC) agencies. One of the functions that make NYC's...
County-Level Planning Model in Atlanta Region
Gwinnett County is working with the Atlanta Regional Commission (ARC) and Barton-Ashman Associates to download the ARC trip tables for use in a microcomputer transportation planning model...
Teacher Friendly Transportation Programs
This contribution describes a set of computer programs that has mainly been developed to demonstrate operating and possibilities of mainframe programs during lectures. The program set...
Use of the DEB Model in MARTA's Service Planning
The Metropolitan Atlanta Rapid Transit Authority (MARTA) is in the process of expanding bus and rail services. The expansion program requires the preparation of annual and five year system...
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