New Modified Rational Formula in InfoSWMM

New Modified Rational Formula in InfoSWMM

InfoSWMM H2OMap SWMM now offers 12 choices for modeling surface runoff including the new Modified Rational Method (MRM)

1. EPA SWMM 5 Nonlinear Reservoir

2. The Colorado Urban Hydrograph Procedure (CUHP)

3. NRCS (SCS) Dimensionless Unit Hydrograph Method

4. NRCS (SCS) Triangular Unit Hydrograph Method

5. Delmarva Unit Hydrograph

6. Snyder Unit Hydrograph Method

7. Clark Unit Hydrograph Method

8. Espey Unit Hydrograph Method

9. Santa Barbara Urban Hydrograph Method

10. San Diego Modified Rational Method

11. Modified Rational Method (NEW!)

12. German Runoff (NEW!)

The Rational method is a widely used technique for estimation of peak flows from urban and rural drainage basins (Maidment 1993; Mays 2001). Stormwater modeling applications such as the design of detention basins require knowledge of total inflow volume obtained from runoff hydrographs. For these applications peak flow information alone may not be sufficient.  The San Diego modified rational formula is a technique adopted by the San Diego County to generate runoff hydrograph by extending the traditional rational formula. However, the San Diego Modified Rational Method (MRM) has an alternating balance hyetograph and not a constant rainfall. Starting with the release of InfoSWMM and H2Omap SWMM v13 Update 9 a new Modified Rational Method has been added with a constant Rainfall.

The peak of the runoff per Subcatchment is given by the equation Q=CIA (Figure 1).

	where, A = Subcatchment Area (hectares or acres) C = Runoff Coefficient (dimensionless and varies from 0 to 1) I = Rainfall Intensity (mm/hr or inch/hr) Q = Peak Runoff Rate (flow units)

Figure 1. Q = C I A equation definition.

The runoff option is selected as shown in Figure 2 and the Storm parameters are entered as shown in Figure’s 3 and 4

Figure 2 Modified Rational Method is the last method in the Pull Down Menu in the Runoff Model Selection Dialog. As shown in

Figure 3 The parameters for the Modified Rational Method (Runoff Coefficient, Time of Concentration and Design Storm Tc Multiplier) can be added or edited in the Attribute Browser (AB) of InfoSWMM and H2Omap SWWMM. They can also be entered using the DB Tables as shown in

Figure 4 The parameters for the Modified Rational Method (Runoff Coefficient, Time of Concentration and Design Storm Tc Multiplier) can be added or edited in the Subcatchment DB Tables of InfoSWMM and H2Omap SWWMM.

The storm parameters of the MRM are shown in Figure 6 and Figure 7

Figure 5 The Modified Rational Method has a total storm depth and either a total storm duration or a time of concentration (tc) multiplier.

Figure 6 The duration of the Modified Rational Method (MRM) is either entered as absolute hours or a time of concentration (tc) multiplier

The output of the MRM Runoff Option as shown in Figure’s 7, 8 and 9

Figure 7 The Output Manager Subcatchment Summary Table shows the peak flow, the total runoff, the time of concentration and the Simulated Runoff Coefficient.

Figure 8 The Runoff Graph can be triangular based on a constant rainfall shape if the duration is set equal to zero.

Figure 9 The Runoff Graph can be trapezoidal based on a constant rainfall shape if the duration is non zero.

Figure 2 Modified Rational Method is the last method in the Pull Down Menu in the Runoff Model Selection Dialog.

Figure 3 The parameters for the Modified Rational Method (Runoff Coefficient, Time of Concentration and Design Storm Tc Multiplier) can be added or edited in the Attribute Browser (AB) of InfoSWMM and H2Omap SWWMM.

Figure 4 The parameters for the Modified Rational Method (Runoff Coefficient, Time of Concentration and Design Storm Tc Multiplier) can be added or edited in the Subcatchment DB Tables of InfoSWMM and H2Omap SWWMM.

Figure 5 The Modified Rational Method has a total storm depth and either a total storm duration or a time of concentration (Tc) multiplier.

Figure 6 The duration of the Modified Rational Method (MRM) is either entered as absolute hours or a time of concentration (Tc) multiplier

Figure 7 The Output Manager Subcatchment Summary Table shows the peak flow, the total runoff, the time of concentration and the Simulated Runoff Coefficient.

Figure 8 The Runoff Graph can be triangular based on a constant rainfall shape if the duration is set equal to zero.

Figure 9 The Runoff Graph can be trapezoidal based on a constant rainfall shape if the duration is non zero.

How to Use Non-Steady Periods in InfoSWMM

How to Use Non-Steady Periods in  InfoSWMM

How to Use Non-Steady Periods in  InfoSWMM

Innovyze Releases InfoSWMM Generation V14.5, Spearheading New Era in GIS-Centric Smart Wastewater and Stormwater Modeling

New Version, Available for Download Immediately, Delivers Unrivaled High-Performance Simulation Capabilities for Unprecedentedly Large Urban Drainage Systems

Broomfield, Colorado, USA, June 21, 2016

In its ongoing quest to equip the wastewater industry with the world’s most comprehensive and innovative smart network modeling and management solutions, Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced the worldwide availability of the V14.5 Generation of its industry-leading InfoSWMM for ArcGIS (Esri, Redlands, CA). InfoSWMM V14.5 provides unique new capabilities and enhancements that comprise the most advanced approach to guiding and optimizing the planning, design, operation and management of larger and more complex urban drainage systems than ever before, including networks with over one million elements. It delivers many applications for drainage systems in non-urban areas as well.

A complete ArcGIS-centric urban drainage modeling solution, the full-featured InfoSWMM analysis and design program delivers the highest rate of return in the industry. All operations of a typical collection system — from analysis and design to management functions such as water quality assessment, hydrogen sulfide and pollution prediction, sediment transport and deposition, urban flooding, real-time control, and record keeping — are addressed in a single, fully integrated geoengineering environment. It can also accurately represent and analyze any combination of LID controls and green infrastructure to determine their effectiveness in managing stormwater and combined sewer overflows. The program’s powerful hydraulic and water quality computational engine is based on an improved and faster version of the latest USEPA SWMM 5, certified by FEMA. These features and more deliver an enhanced modeling experience and greater realism of displayed results — advantages that translate to increased productivity, reduced costs, higher accuracy, better efficiency, and improved designs.

InfoSWMM also serves as a robust base platform for advanced modeling, operational, short-term and long range planning, capital planning, urban stormwater treatment and analysis, and analytics-driven asset management extensions. Some of these critical applications include InfoSWMM Sustain (optimal selection and placement of green infrastructure), InfoSWMM 2D (two-dimensional surface flood modeling), SWMMLive (real-time urban drainage modeling), CapPlan (risk-based capital planning and asset performance modeling), InfoSWMM SFEM (dynamic sewer flow estimation model), InfoMaster (GIS-centric analytics-driven asset management), and RDII Analyst (rainfall-dependent inflow and infiltration planning and analysis).

The release of InfoSWMM V14.5 extends the capabilities of previous generations with new features, improvements, and groundbreaking innovations in geoengineering productivity and efficiency as well as an enhanced user experience. These advances, requested by our users, greatly simplify, accelerate, and integrate urban drainage network engineering, helping wastewater and stormwater engineers develop better designs and operational improvements faster. The new release includes the ability to skip dry weather or steady-state periods, an important plus for long-term simulations. The user may specify storms of interest while retaining the capability to simulate continuous hydrology, such as seasonal groundwater variations. This functionality allows results files to remain manageable while evaluating a sewer system over a long term period, period of record or typical year analysis. Other enhancements include direct connection to SCADAWatch for model calibration and verification with real-time data, automated export to HEC-RAS, optimized export of very large time series, complete support of 64-bit simulation runs, expanded storage curve calculator to automatically define depths and boundaries of all BMPs, and the ability to expeditiously generate RTK parameters.

“Our priorities have always been to advance the frontiers of smart network modeling technology and support our customers’ successes by helping them be more productive, innovative and competitive —imperative advantages in today’s economy,” said Paul F. Boulos, Ph.D., BCEEM, Hon.D.WRE, Dist.D.NE, Dist.M.ASCE, NAE, President, COO and Chief Innovation Officer of Innovyze. “This major InfoSWMM release delivers on our promise to equip our customers with the ultimate ArcGIS-centric decision support tool for sewer collection and urban drainage systems. Like its predecessors, InfoSWMM V14.5 sets a new standard for quality and high-performance network modeling and management with unrivaled power and speed, cutting-edge capabilities, rich functionality and ease of use. From top to bottom, it is designed for record modeling performance of larger systems than ever, enabling users to increase productivity and quality while achieving engineering, sustainability and business goals. We will continue to work hard to provide our customers with the best GIS-centric modeling solutions to help them design, build, manage and operate safe, sustainable and resilient hydraulic infrastructure systems and drive engineering success.”

Added Robert E. Dickinson, Product Sector Leader for Innovyze, “Improving modeling accuracy and effectively interfacing with GIS applications requires the use of large, detailed operational models of the urban drainage system. With this decisive performance, InfoSWMM has raised the standard of all-element urban drainage network modeling to new levels of reliability, fidelity and performance, giving our customers significant boosts in productivity and efficiencies.”

Pricing and Availability 
Upgrade to InfoSWMM V14.5 (and H2OMAP SWMM V14.5) is now available worldwide by subscription. Subscription members can immediately download the new version free of charge directly from www.innovyze.com. The Innovyze Subscription Program is a friendly customer support and software maintenance program that ensures the longevity and usefulness of Innovyze 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 Innovyze Subscription Program, visitwww.innovyze.com or contact your local Innovyze Channel Partner.

About InnovyzeInnovyze is a leading global provider of wet infrastructure business analytics software solutions designed to meet the technological needs of water/wastewater utilities, government agencies, and engineering organizations worldwide. Its clients include the majority of the largest UK, Australasian, East Asian and North American cities, foremost utilities on all five continents, and ENR top-rated design firms. With unparalleled expertise and offices in North America, Europe and Asia Pacific, the Innovyze connected portfolio of best-in-class product lines empowers thousands of engineers to competitively plan, manage, design, protect, operate and sustain highly efficient and reliable infrastructure systems, and provides an enduring platform for customer success. For more information, call Innovyze at +1 626-568-6868, or visit www.innovyze.com.

Innovyze Contact:Rajan RayDirector of Marketing and Client Service Manager
Rajan.Ray@innovyze.com
+1 626-568-6868

- See more at: http://www.innovyze.com/news/1686/Innovyze_Releases_InfoSWMM_Generation_V14.5,_Spearheading_New_Era_in_GIS-Centric_Smart_Wastewater_and_Stormwater_Modeling#sthash.nYqBiqjO.dpuf

Innovyze President Recognized with AAWRE Special Distinction Award

Innovyze President Recognized with AAWRE Special Distinction Award - See more at: https://t.co/ErsGLzX8VU pic.twitter.com/GspTEtUhbA

— Innovyze (@Innovyze) June 3, 2016

Innovyze President Dr. Paul F. Boulos Appointed to Wharton Initiative for Global Environmental Leadership Corporate Advisory Board

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Innovyze President Dr. Paul F. Boulos Appointed to Wharton Initiative for Global Environmental Leadership Corporate Advisory Board

Broomfield, Colorado, USA, May 17, 2016 — Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced that its President, COO and Chief Innovation Officer, Paul F. Boulos, Ph.D., BCEEM, Hon.D.WRE, Dist.D.NE, Dist.M.ASCE, NAE, has been appointed to the Corporate Advisory Board of Wharton Initiative for Global Environmental Leadership at the University of Pennsylvania. The Wharton-led, Penn-wide Initiative for Global Environmental Leadership (IGEL) promotes knowledge for business sustainability. IGEL works with a diverse and interdisciplinary network to develop and disseminate innovative research and business practices to solve the most pressing environmental issues facing our planet. IGEL also interfaces with top alumni and with academic, corporate, government, and non-government organizations to drive business policies and practices on a global scale. With its partners, IGEL facilitates knowledge for action, life-long learning and impact through world-class research, transformative teaching of future leaders, and public outreach regarding best business practices. Dr. Boulos joins a distinguished list of industry leaders on the board, including Laura Bryant, Vice President of Enterprise Holdings; Patrick R. Cairo, Executive Vice President for Suez Environment North America and United Water; Philip Dahlin, Director of Sustainability for Johnson & Johnson; Linda Froelich, Global Sustainability Director for FMC Corporation; Eunice Heath, Global Director of Sustainability for the DOW Chemical Company; Jon Freedman, Global Government Relations Leader for GE Power & Water; David Kiser, Vice President of EHS & Sustainability for International Paper; Allison Porter, Vice President of Sustainability Services for Cushman & Wakefield; Lane Moore, Executive Chairman of Rubicon Global; Kim Rumph, President of CHEP North America (A Brambles Company); Barbara Schulze, Vice President of Sustainability and Director of Environmental Center of Excellence for Merck; and John Shegerian, Chairman & CEO of Electronic Recyclers International (ERI). “IGEL’s vision is to become the preeminent institutional and educational catalyst for the adaptation of business policies and practices that will transform the world toward sustainability,” said Joanne Spigonardo, Senior Associate Director of Business Development for the Wharton School at the University of Pennsylvania. “Dr. Boulos’s vast experience and leadership skills in the field of water infrastructure sustainability and resiliency will add invaluable strength to our vital initiative. We are honored to have him join us.” Dr. Boulos is one of the world’s foremost experts on water resources and navigation engineering and the author of ten authoritative books and more than 200 technical articles on issues critical to the water and wastewater industry. He is the recipient of numerous honors from national and international scientific and engineering societies, governments, universities, and NGOs. Among them are notable technical awards for excellence in scholarship from the American Society of Civil Engineers (ASCE), the American Water Works Association (AWWA) and the U.S. Environmental Protection Agency (USEPA). He also received the U.S. Ellis Island Medal of Honor, one of America’s highest accolades; the Pride of Heritage Award from the Lebanese American Foundation; and the Alumni of the Year Award by the Lebanese American University. He was inducted into the University of Kentucky College of Engineering Hall of Distinction, the most prestigious honor given by the university to its alumni, and awarded Honorary Diplomate status by the American Academy of Water Resources Engineers (AAWRE) as well as Distinguished Diplomate status in Navigation Engineering by the Academy of Coastal, Ocean, Port & Navigation Engineers (ACOPNE), both academies’ top honors. He was also elected to the grade of Distinguished Member of ASCE, the highest honor conferred by the Society; and to the National Academy of Engineering, the highest professional distinction accorded to an engineer. He is a Diplomate (by Eminence) of the American Academy of Environmental Engineers and Scientists (AAEES). Dr. Boulos received his Doctorate, Master of Science and Bachelor of Science degrees in Civil Engineering from the University of Kentucky and his Bachelor degree in General Science from the Lebanese American University. He has also completed Harvard Business School’s Advanced Management Program. “To prepare for the better world of tomorrow today, we must work to create sustainable communities,” said Boulos. “This requires us to transform our practices to enhance the well-being of people everywhere. I look forward to working with this preeminent board to contribute to more sustainable, more resilient infrastructures; protect and enhance the natural environment; and create a safer, healthier world for our children and all future generations.” About Innovyze Innovyze is a leading global provider of wet infrastructure business analytics software solutions designed to meet the technological needs of water and wastewater utilities, government agencies, and engineering organizations worldwide. Its clients include the majority of the largest UK, Australasia and North American cities, foremost utilities on all five continents, and ENR top-rated design firms. With unparalleled expertise and offices in North America, Europe, and Asia Pacific, the Innovyze connected portfolio of best-in-class product lines empowers thousands of engineers to competitively plan, manage, design, protect, operate and sustain highly efficient and reliable infrastructure systems, and provides an enduring platform for customer success. For more information, call Innovyze at +1 626-568-6868, or visit www.innovyze.com. Innovyze Contact Rajan Ray Director of Marketing and Client Service Manager Rajan.Ray@innovyze.com +1 626 568-6868

Annotated PID Controller in SWMM5 and InfoSWMM

How does a PID controller work in  InfoSWMM  and SWMMM 5 - this also applies to H2OMap SWMM??

double getPIDSetting(struct TAction* a, double dt)   //  at each time  step find  the PID control  changes for the  current  time step dt
// Input: a = an action object
// dt = current time step (days)
// Output: returns a new link setting
// Purpose: computes a new setting for a link subject to a PID controller.

// Note: a->kp = gain coefficient,
// a->ki = integral time (minutes)
// a->k2 = derivative time (minutes)
// a->e1 = error from previous time step
// a->e2 = error from two time steps ago
{
double e0, setting;
double p, i, d, update;
double tolerance = 0.0001;

// --- convert time step from days to minutes
dt *= 1440.0;

// --- determine relative error in achieving controller set point

// Or how close are we to the set point?

e0 = SetPoint - ControlValue;
if ( fabs(e0) > TINY )
{
if ( SetPoint != 0.0 ) e0 = e0/SetPoint;

// now alter the  value of e0

else e0 = e0/ControlValue;
}

// --- reset previous errors to 0 if controller gets stuck
if (fabs(e0 - a->e1) < tolerance)
{
a->e2 = 0.0;
a->e1 = 0.0;
}

// --- use the recursive form of the PID controller equation to
// determine the new setting for the controlled link

Here is a view of the p, i and d PID internal  parameters https://www.wikiwand.com/en/PID_controller

A block diagram of a PID controller in a feedback loop

p = (e0 - a->e1);

ki, id,  kp are  user  inputs  in InfoSWMM and SWMM5 or from the  EPA SWMM  5 Help  File

if ( a->ki == 0.0 ) i = 0.0;
else i = e0 * dt / a->ki;

d = a->kd * (e0 - 2.0*a->e1 + a->e2) / dt;

update = a->kp * (p + i + d);
if ( fabs(update) < tolerance ) update = 0.0;
setting = Link[a->link].targetSetting + update;

// --- update previous errors
a->e2 = a->e1;
a->e1 = e0;

// --- check that new setting lies within feasible limits

// If  the link  is not a pump then the  setting must be between 0 and 1
if ( setting < 0.0 ) setting = 0.0;
if (Link[a->link].type != PUMP && setting > 1.0 ) setting = 1.0;
return setting;}

Comparison of Three Different ModellingApproaches for the Simulation of Flooding Urban Areas - InnoAqual

Comparison of Three Different ModellingApproaches for the Simulation of Flooding Urban Areas http://udm2015.org/wp-content/uploads/2015/05/Fuchs-UDM-2015-Comparison.pdf …

Comparison of Three Different Modelling Approaches for the Simulation of Flooding Urban Areas from InnoAqua

AAEES 2016 Innovyze Excellence in Computational Hydraulics/Hydrology Award Presented to Colorado School of Mines Doctoral Student

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AAEES 2016 Innovyze Excellence in Computational Hydraulics/Hydrology Award Presented to Colorado School of Mines Doctoral Student

Broomfield, Colorado, USA, May 13, 2016 — Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced that Jennifer Jefferson, a Ph.D. student majoring in Hydrology at the Colorado School of Mines working under the supervision of Dr. Reed Maxwell, has been chosen to receive the American Academy of Environmental Engineers and Scientists (AAEES) 2016 Innovyze Excellence in Computational Hydraulics/Hydrology Award. This prestigious annual award recognizes a student whose research contributes to the knowledge pool in the area of Computational Hydraulics & Hydrology. Selection is based on original, innovative research of publishable quality and other factors. Both Master’s and Ph.D. students are eligible. Ms. Jefferson’s publications include a recent a manuscript titled “Active Subspaces for Sensitivity Analysis and Dimension Reduction of an Integrated Hydrologic Model” published in Computers & Geosciences. The paper has advanced efforts to utilize integrated hydrologic models that are coupled to land surface models. Her research contributions are important because energy transfer into and out of the land surface is a primary driver of climate and weather patterns. Ms. Jefferson’s research interests center around modeling the impact of land surface disturbances on hydrological processes. Her research has focused on ParFlow.CLM, a parallel coupled terrestrial hydrology simulation platform. She is studying the sensitivity of these models using high resolution simulations running on supercomputing platforms. She is the author of several high impact peer reviewed journal articles. A professionally registered engineer in Wisconsin, Ms. Jefferson received her B.S. and M.S. degrees in Civil Engineering from Iowa State University. She has served as president of the Colorado School of Mines’ Hydrologic Science and Engineering Club and is a member of the American Geophysical Union, Society of Women Engineers, and American Society of Civil Engineers. In her nomination package, she noted her research has demonstrated that advancing science in her area requires effective collaboration and communication between modelers, mathematicians, engineers and hydrologists. “I am honored to receive this prestigious award recognizing my Ph.D. work at Colorado School of Mines,” said Ms. Jefferson. “The aspect of my graduate experience that I have enjoyed the most is working with researchers across disciplines and computational work certainly provides a platform for math, hydrology, science and engineering to come together. The research paper submitted as a part of this award fully embodies each of those disciplines, which made it fun to work on!” Administered by AAEES and co-sponsored by Innovyze, the award consists of cash honoraria of $1,500 for the student and $500 for the major faculty advisor. A $500 travel allotment is also provided to the student recipient to attend the AAEES Excellence in Environmental Engineering and Science Awards Luncheon. The award selection is administered jointly by a committee consisting of equal members of AAEES and the Association of Environmental Engineering and Science Professors (AEESP). “The Innovyze Excellence in Computational Hydraulics/Hydrology Award is the premier award recognizing exceptional research work in the vital field of computational hydraulics and hydrology,” said Cecil Lue-Hing, D.Sc., P.E., DEE, Hon.D.WRE, Hon.M.ASCE, NAE, President of the Environmental Engineering and Science Foundation. “Ms. Jefferson has demonstrated outstanding academic achievement, exemplary leadership, and a significant commitment to the community at large. We are very pleased to award her this outstanding national recognition, an honor she highly deserves. Her research work is very promising and will have a positive impact on our profession.” “Innovyze is pleased to present this signal award to Ms. Jefferson,” said Paul F. Boulos, Ph.D., BCEEM, Hon.D.WRE, Dist.D.NE, Dist.M.ASCE, NAE, President, COO and Chief Innovation Officer of Innovyze. “We are proud to further her future in this critical field, and play a small part in her efforts to make the world a better place through her work. On behalf of everyone at Innovyze, enthusiastic congratulations to her.” About Innovyze Innovyze is a leading global provider of wet infrastructure business analytics software solutions designed to meet the technological needs of water and wastewater utilities, government agencies, and engineering organizations worldwide. Its clients include the majority of the largest UK, Australasia and North American cities, foremost utilities on all five continents, and ENR top-rated design firms. With unparalleled expertise and offices in North America, Europe, and Asia Pacific, the Innovyze connected portfolio of best-in-class product lines empowers thousands of engineers to competitively plan, manage, design, protect, operate and sustain highly efficient and reliable infrastructure systems, and provides an enduring platform for customer success. For more information, call Innovyze at +1 626-568-6868, or visit www.innovyze.com. Innovyze Contact Rajan Ray Director of Marketing and Client Service Manager Rajan.Ray@innovyze.com +1 626 568-6868

Oregon’s Clean Water Services Adopts SWMMLive and InfoMaster Technology

Oregon’s Clean Water Services Adopts SWMMLive and InfoMaster Technology

Real-Time Sewer Network Modeling and Analytics-Driven Risk-Based Asset Management Software to Improve Business Planning, Infrastructure Sustainability and Resiliency

Broomfield, Colorado, USA, May 3, 2016 — Innovyze, a leading global innovator of business analytics software and technologies for smart water infrastructure, today announced that Clean Water Services (District), Oregon, has chosen the company’s industry-leading and award-winning InfoMaster and SWMMLive to support its sanitary sewer capital improvement program. The purchase will enable the District to efficiently upgrade, replace and expand its infrastructure and improve water quality in the Tualatin River and its tributaries. Headquartered in Hillsboro, Oregon, Clean Water Services is a water resources management utility that combines science and nature to clean water and return it to the Tualatin River so it can be used again. The District cleans more than 60 million gallons of wastewater each day for more than 560,000 customers in urban Washington County. The wastewater is collected by a vast network of more than 800 miles of sewer pipes and 40 pump stations and routed to one of four treatment facilities: Durham, Rock Creek, Hillsboro and Forest Grove. The District also maintains 670 miles of storm sewers and pipelines, open ditches, stormwater detention ponds and water quality facilities. “As the region’s water resources management utility, everything we do at Clean Water Services aims to protect public health while enhancing the natural environment,” said Wade Denny, P.E., Senior Engineer in the District’s Conveyance Department. “SWMMLive and InfoMaster will help us effectively optimize our sewer rehabilitation program and improve our system efficiency, resiliency and operational performance so we can continue to best serve our customers and protect the environment.” SWMMLive combines the comprehensive urban drainage modeling capabilities of InfoSWMM, including water quality assessment, pollution prediction, urban flooding, green LID and BMP alternatives, and real-time control, with sophisticated real-time operational forecasting, early warning and emergency management. This powerful risk assessment and real-time decision making tool allows utilities of all sizes to operate and manage their collection systems more efficiently and effectively than ever before. It enables managers and operators to consider the influence of a full range of catchment factors in three key areas: management of flooding and reduction of unregulated discharges; optimization of storage, green alternatives and existing infrastructure, leading to savings on capital works; and optimization of pumps to lower energy costs and reduce CO2 emissions. Certified by NASSCO PACP, MACP and LACP, InfoMaster is the leading ArcGIS-centric software choice for utilities faced with rehabilitating, strengthening and optimizing their water infrastructures. It can accurately estimate both the likelihood and consequence of failure for each individual water main in the network. It can also evaluate their aging processes, estimating their lifetimes and their structural and functional failure potential and distribution over time. This critical information greatly assists utilities in assessing their pipes’ propensity to fail, identifying those more prone to failure, prioritizing their inspection and determining rehabilitation requirements. InfoMasterfacilitates a proactive approach to identifying and managing these high-risk assets to help preserve structural integrity and keep the network operating well into the future. It also eliminates reactive maintenance: waiting for pipe failures to occur before repairing. This proactive “fix before break” approach can help utilities extend the useful life of their assets and improve their performance at maximum savings. “Progressive utilities all over the world continue to recognize the benefits of Innovyze advanced geocentric smart water network modeling and management technology,” said Paul F. Boulos, Ph.D., BCEEM, Hon.D.WRE, Dist.D.NE, Dist.M.ASCE, NAE, President, COO and Chief Technical Officer of Innovyze. “The remarkable success of InfoMasterand SWMMLive is due to their combination of powerful advantages: proven capabilities, a rich features set, state-of-the-art optimization, seamless GIS data exchange capabilities, a short learning curve and an unparalleled track record of successful global implementation. All these factors set them apart from the competition by enabling users to complete better, more reliable and cost-effective projects faster than ever before, with a whole new level of interactivity. This gives them an unbeatable competitive advantage and helps them to thrive. The fact that progressive utilities like Clean Water Services continue to choose Innovyze as their solution partner clearly demonstrates the superiority of our products. We’re very proud to know that our software applications are in place at many of the world’s best-run utility companies of every size, helping them meet their corporate and strategic goals and achieve world-class performance at breakthrough cost savings.” About Innovyze Innovyze is a leading global provider of wet infrastructure business analytics software solutions designed to meet the technological needs of water and wastewater utilities, government agencies, and engineering organizations worldwide. Its clients include the majority of the largest UK, Australasia and North American cities, foremost utilities on all five continents, and ENR top-rated design firms. With unparalleled expertise and offices in North America, Europe, and Asia Pacific, the Innovyze connected portfolio of best-in-class product lines empowers thousands of engineers to competitively plan, manage, design, protect, operate and sustain highly efficient and reliable infrastructure systems, and provides an enduring platform for customer success. For more information, call Innovyze at +1 626-568-6868, or visit www.innovyze.com. Innovyze Contact Rajan Ray Director of Marketing and Client Service Manager Rajan.Ray@innovyze.com +1 626 568-6868

Why is a Hot Start File important in SWMM 5 and InfoSWMM

A Hot Start File in InfoSWMM  or SWMM 5 is important as it provides initial   depths, initial flows and  initial settings for the hydrology and hydraulics features of the SWMM 5 engine.    You  have three options:

1. Save a hot Start File at the  end of the  simulation,
2. Use a hot Start File  at the beginning of  the simulation,
3. Create a hot start file  from  the a  time during  the  Map Display

If you change any of the network  types or add new links and nodes then  the Hot Start file needes to be recreated.  InfoSWMM use the Tab File in  the Run Manager to name the Hot Start File (Figure 1).   Each and  every Scenario in InfoSWMM  can  use or Save a different scenario with different starting  and ending  times  (Figure 2).  If you USE  a Hot  Start  File then:

1. The  new  simulation  starts at the end  of  the  old  simulation
2. You can  run a Quasi Steady State Simulation and use a very short simulation time of minutes if you use a Hot Start File
3. Figure 3  shows  the effect of Using a Hot Start File

Figure 1. File Tab for Saving or Using a  Hot Start file in InfoSWMM  or  H2OMap SWMM.   There  is  a similar dialog in  SWMM5.

Figure 2.  Each Scenario in  InfoSWMM  and  H2OMap  SWMM can have a   different set of report  and simulation options.

Figure 3.   The Saved Time Series for the  Outfall (Blue) and  Use (Green)  Outfall  Time Series.