xpswmm32 import for rational method

Hello,

Does anyone know how to import watershed realted data into XPSWMM32. I am using the rational method for runoff computation and I have approximately 2500 nodes. I have information regarding the runoff coefficient, time of concentration, area set up based on the node name. I am looking for some pointers or better an example to import the data into the model. I have the pertinent "field names" that are required but am not sure how to set it up in the easiest possible way.

Thank you.
Mustafa S. Faizullabhoy
KCI Technologies Inc.

Tough one. My guess would be to generate your peak flows with the Rational Method, then build triangular hydrographs as input into the EXTRAN or TRANSPORT model. I don't know of any way to convert time of concentration or runoff coefficient into the RUNOFF parameters.

William H. Frost, P.E.
bfrost@co.arlington.va.us