STORM RAINFALL AND RUNOFF DATA WERE ASSEMBLED FROM 10 URBAN BASINS IN THE U.S.A. RANGING IN SIZE FROM 14 ACRES TO 8 SQ.MO. THE BRITISH RRL METHOD OF STORM DRAINAGE DESIGN WAS APPLIED TO THE 10 BASINS. THE RRL METHOD CONSIDERS THE URBAN BASIN TO BE COMPRISED OF THE PAVED AREA OF THE BASIN WHICH IS DIRECTLY CONNECTED TO THE ARTIFICIAL STORM DRAINAGE SYSTEM. IN 3 OF THE 10 BASISNS THE RRL PROCEDURE WAS DEEMED TO BE APPROPRIATE AND SUITABLE FOR THE DESIGN OF A STORM DRAINAGE SYSTEM WITHIN THE NORMAL RANGE OF FREQUENCY OF DESIGN RAINFALL EVENTS, FROM 2 TO 20-YEAR EVENTS. FOR GREATER STORMS AND FOR CERTAIN CASES WITHIN THIS FREQUENCY RANGE, THE RRL METHOD BREAKS DOWN BECAUSE THE RUNOFF COMING FROM THE GRASSED AREA OF THE BASIN IS SIGNIFICANT. IF THE BASIN IS HIGHLY STEEP OR IF THE PAVED AREA COMPRISES LESS THAN 15% OF THE TOTAL BASIN, THIS BREAKDOWN OCCURS.
[1]
E. Brater.
Steps toward a better understanding of urban runoff processes
,
1968
.
[2]
Floyd A. Huff,et al.
Time distribution of rainfall in heavy storms
,
1967
.
[3]
L. Douglas James,et al.
Using a digital computer to estimate the effects of urban development on flood peaks
,
1965
.
[4]
G. E. Seaburn.
Preliminary results of hydrologic studies at two recharge basins on Long Island, New York
,
1970
.
[5]
K. Dueker,et al.
STORM DRAINAGE PRACTICES OF THIRTY-TWO CITIES
,
1969
.
[6]
W. I. Hicks,et al.
A Method of Computing Urban Runoff
,
1944
.