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Title:

HYDROLOGIC DATA DEVELOPMENT SYSTEM

Accession Number:

00743639

Record Type:

Component

Availability:

Find a library where document is available


Order URL: http://worldcat.org/isbn/0309061709

Abstract:

The Hydrologic Data Development System is a prototype system of spatial data and menu-driven programs that allows user-interactive determination of hydrologic parameters and estimation of flood-frequency relationships for the design of highway drainage structures. The program employs Arc/Info, a commercial geographical information system. A data base was developed to cover the extent of Texas at a scale of 1:2,000,000 and a smaller sample area of northeast Texas at a scale of 1:250,000. The data include digital-elevation models, major highways, soil characteristics, design rainfall depth-frequency-duration, land use, stream gauge sites, hydrologic regions, and political boundaries. New tables were developed to spatially relate soil characteristics and land use to runoff coefficients used in the Natural Resources Conservation Service Runoff Curve Number method. The system employs spatial-analysis techniques to establish an outfall, to delineate drainage boundaries and flow paths using relevant digital-elevation data, and to use other data layers to determine parameters such as average watershed slope, time of concentration, area-weighted runoff curve numbers, and area-weighted design rainfall. Input files can be established and submitted to the Texas Hydraulic System computer program to determine flood-frequency relationships.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1599, Roadside Safety Features and Other General Design Issues.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Smith, P N

Pagination:

p. 118-127

Publication Date:

1997

Serial:

Transportation Research Record

Issue Number: 1599
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309061709

Features:

Figures (5) ; References (21) ; Tables (3)

Uncontrolled Terms:

Flood frequency; Political boundaries

Geographic Terms:

Texas

Old TRIS Terms:

Texas

Subject Areas:

Geotechnology; Highways; Hydraulics and Hydrology; Materials; I26: Water Run-off - Freeze-thaw

Files:

TRIS, TRB, ATRI

Created Date:

Dec 12 1997 12:00AM

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