The new version delivers both new and expanded functionalities for the quantification of RDII and help capacity analysis and the condition assessment of sewer systems. In addition to rainfall and antecedent moisture conditions, factors in controlling RDII responses include depth to groundwater, depth to bedrock, land slope, number and size of sewer system defects, type of storm drainage system, soil characteristics, and type of sewer backfill. You must combine flow-monitoring data with mathematical modeling and analytics to provide accurate results.

V14.5 has expanded with an interactive visual curve fitting to determine the unit hydrograph parameters. R, T, K and associated monthly storage parameters can now be determined by graphically comparing the total RDII hydrographs generated by users’ defined R, T, K parameters with the RDII hydrographs from the monitored data. Numerical comparison of RDII volume with the sum of volume under each of the unit hydrographs confirms the success of curve fitting.

V14.5 also features an enhanced version of the latest USEPA SWMM5 engine. It enables users to analyze and rank solutions using various statistical methods and provides the ten best solution sets for result ranking and selection.

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