Urban Storm Water Hydraulic Modelling Software Evaluation Project

Executive Summary of the Main Report

We Note in the Report

Prepared for NZWWA / NZWERF by Opus International Consultants Ltd.

This project was mostly completed in 2004, but has recently (Sept. 2005) been published on the Web, so is now available for public reading. You can see the complete report at http://www.nzwwa.org.nz/Final_report.pdf.

A summary of the report was published inWater & Wastes in NZ (The NZWWA Journal) September 2005, pp 26-27.

Executive Summary of the Main Report

"A research project has been undertaken to evaluate selected urban drainage hydraulic modelling software packages used in New Zealand. The evaluation employed three test cases and the simulation results are presented and discussed. The test cases employed were:

Simulation of an energy solution for a simple pond and outflow case

Application of the software packages for some real catchment with observed rainfall and flow data

Application of the software packages to a low impact design example

In addition to the qualitative evaluation a more quantitative evaluation has been undertaken and the software rated on their applicability to urban drainage modelling. Recommendations are made for investigative projects in relation to hydrological and hydraulic storm water urban drainage modelling."

We Note in the Report:

"It is considered that the serious hydraulic modelling practitioner should have access to tools that offer both advanced GIS and analysis features, efficient model data handling and solutions to momentum and energy equations. This requirement calls for the access to packages such as InfoWorks or MOUSE as well as packages such as AULOS."

It seems to us that they are saying that AULOS is the necessary package, and that you should have the others as well, for the reasons given.

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