MWH Soft Releases RDII Analyst for Drainage Modeling

BROOMFIELD, CO, Jun 3, 2009 - MWH Soft, a leading global provider of environmental and water resources applications software, today announced the newest release of its RDII Analyst (Rainfall-Derived Inflow and Infiltration) for InfoSWMM and H2OMAP SWMM with expanded functionality.

The new version incorporates many advanced features. It also openly invites the users to further adjust the dry weather flow (DWF) and RTK parameters to achieve a better fit — and ultimately a better model — based on their experiences, further enhancing its unmatched productivity. The release confirms MWH Soft’s commitment to provide the world with the most complete toolset for modeling modern urban drainage systems.

Excessive wet weather flow resulting from rainfall-derived inflow and infiltration is a major source of sanitary sewer overflows. Control of sewer overflows is vital to reducing risks to public health and protecting the environment from water pollution. Computer modeling plays an important role in determining sound and economical remedial solutions that reduce RDII; improve system integrity, reliability and performance; and avoid overflows.

The processes that convert rainfall to RDII flow in sanitary sewer systems are very complicated. In addition to rainfall and antecedent moisture conditions, various other factors influence RDII responses, including 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. Given this degree of complexity, flow monitoring data must be combined with mathematical modeling to provide accurate results. The wastewater flow monitoring data gathered at sewer collection systems consists of dry-weather flow components and RDII flow components. A crucial element in successfully modeling sewer collection systems is the ability to decompose flow monitoring data into RDII flow and dry-weather flow information.

The new features in RDII Analyst enable users to more quickly perform such advanced flow decomposition. Among these enhancements are tabular comparisons between the observed and calibrated RDII data for each event, including R value, peak flow, hydrograph volume and depth. These comparisons allow users to better evaluate simulated and monitored data and judge how well they correlate on a per-event basis.

The user can also directly edit the estimated DWF mean values to apply site-specific knowledge to the RDII Analyst DWF extraction algorithm. The altered DWF values can then be used to estimate the wet weather flow component of the monitored flow using a combination of the DWF extraction algorithm and site specific knowledge. The new version also allows direct edits to the twelve RTK and storage parameters, and manual curve fitting to apply site-specific knowledge to the genetic algorithm parameter estimation. Manual curve fitting is valuable for timing differences between monitored and calibrated wet weather flow components and to draw on previous experience in estimating RTK parameters.

“MWH Soft continues to listen to our customers, invest very heavily in R&D, and deliver advanced tools that effectively support their wastewater and urban drainage modeling and management needs,” said Paul F. Boulos, Ph.D., Hon.D.WRE, President and COO of MWH Soft. “We are very excited to provide our vast worldwide customer base with the powerful new features in RDII Analyst. Each one has been designed to enhance their modeling experience.”

Pricing and availability

Upgrade to RDII Analyst is now available worldwide by subscription to the Executive program. Subscription members can immediately download the new version free of charge directly from www.mwhsoft.com  . The MWH Soft Subscription Program is a friendly customer support and software maintenance program that ensures the longevity and usefulness of MWH Soft products. It gives subscribers instant access to new functionality as it is developed, along with automatic software updates and upgrades. For the latest information on the MWH Soft Subscription Program, visit here or contact your local MWH Soft Certified Representative.

About MWH Soft

MWH Soft is a leading global provider of technical and infrastructure software and professional solutions designed to meet the technological needs of utilities, government industries, and engineering organizations worldwide. Its clients include major water and wastewater utilities on every continent, the majority of the largest North American cities, and ENR top design firms. The multifaceted, state-of-the-art CAD, GIS and Internet enabled products created by MWH Soft empower thousands of engineers across the globe to competitively plan, manage, design, protect, maintain and operate highly efficient and reliable infrastructure systems.

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See Also

MWH Software website

Civil Engineering Software - list by TenLinks.com
Ultimate Civil Engineering Directory - by TenLinks.com

Additional News

Feb 11 - MWH Reveals Program for 2010 Asia Pacific Water, Sewer Conference
Jan 14 - MWH Releases H2ONET Pressure Zone Manager for AutoCAD
Jan 7 - Vietnam's Saigon Water Corp to Use MWH Soft H2OMAP Water
Dec 23 - MWH Soft Releases Extension for Sustainable Water Modeling
Dec 17 - MWH Soft COO Paul Boulos Gets ASCE Fellowship
Dec 10 - MWH Soft Releases InfoNet Mobile v2.1 for Asset Management
Nov 5 - MWH Soft, Wallingford Complete Merger
Oct 29 - MWH Soft Releases InfoWorks, InfoNet, FloodWorks v10.5
Oct 19 - MWH Soft Unveils Water Sustainability Analysis Extension
Oct 15 - MWH Soft COO Boulos Joins Lebanese American University Board
Sep 17 - MWH Soft COO Paul Boulos Joins AAWRE Board of Trustees
Aug 18 - MWH Soft and Wallingford Software to Merge
Jun 11 - Metropolitan District of Connecticut to Use InfoSWMM
Jun 3 - MWH Soft Releases RDII Analyst for Drainage Modeling
May 14 - MWH Soft Water Modeling Adds Open MP Support
Mar 20 - MWH Soft Extends Abstract Deadline for Conference
Mar 5 - City of Clearwater to Use MWH Soft InfoWater
Feb 18 - MWH Soft Expands Office in Gold Coast, Australia
Feb 11 - MWH Soft Adds Peter Martin for Southwest Sales
Jan 29 - MWH Soft Announces International User Group Conference
Jan 22 - MWH Soft Debuts CapPlan for InfoWater
Jan 15 - MWH Soft Announces H2OMAP Water Pro
Dec 4 - MWH Soft Unveils PipePlan for InfoWater Detailed Pipeline
Oct 9 - Michigan's Genesee Drain Office to Use MWH Soft's InfoSWMM
Aug 27 - MCG to Sell, Support MWH Soft Products in New Zealand

Source: Material used in press releases is often supplied by external sources and used as is.