Update in MiTS 3's Storm Water Module
The Storm Water module (previously Drainage) in MiTS 3 enhances stormwater management by allowing user-defined hydrographs, multiple pond designs, and comprehensive detention drain analysis. Unlike the MSMA module, which relies on predefined hydrographs and single pond designs, the Storm Water module provides more flexibility and accuracy by integrating flow routing, conveyance, and storage analysis within a single system. This ensures more realistic and efficient stormwater management, reducing the need for manual adjustments and approximations.
User Defined Hydrograph
User-defined hydrograph allows users to input their own inflow data instead of relying on predefined hydrographs generated by the software. This feature provides greater flexibility in modeling real-world scenarios, as users can incorporate actual measured inflow data or custom-designed hydrographs based on specific project requirements.
By enabling user-defined hydrographs, MiTS 3 allows for more precise and customizable stormwater analysis, making it easier to simulate various rainfall and runoff conditions accurately.
Series Pond Design
Storm Water module now supports pond design, a feature that was not available in MiTS 2 Drainage module. Additionally, users can design multiple ponds within a single project, allowing for more complex and interconnected stormwater management systems. This improvement provides greater flexibility and efficiency in modeling detention and retention ponds compared to the single-pond limitation in MiTS 2 MSMA module.
Absolute & Iterated Depth Below Invert
Depth Below Invert in MiTS 3 prevents outlet blockages by allowing users to define sump depths using Level (manual input) or Fixed Depth (exact sump depth). These options, found in Node & Storage > Spread Input, impact drainage calculations and can be analyzed in the Longitudinal Section view.
Design & Analysis Mode
The Stormwater module in MiTS 3 features Design Mode for preliminary drainage design using static calculations and Analysis Mode for time-series simulations of real-world stormwater behavior. Design Mode iterates drain sizes and invert levels (IL) based on standard guidelines, while Analysis Mode requires user-defined IL and dimensions, incorporating detailed inputs for storm events, hydrology, hydraulics, and storage. Unlike MiTS 2, which only supported Design Mode, MiTS 3 allows users to validate drainage performance under dynamic conditions. Outputs in Analysis Mode include all Design Mode reports plus additional Summary and Graph Reports for error detection and time-series visualization. This dual-mode functionality ensures both efficient design and accurate real-world assessment.
Kinematic & Dynamic Wave Routing
MiTS 3 now supports both Dynamic and Kinematic Wave Routing methods for stormwater analysis. These options provide greater flexibility in modeling surface runoff and flow dynamics. The Dynamic Wave Routing method accounts for backwater effects, flow reversals, and pressurized flow, making it ideal for complex drainage systems. Meanwhile, the Kinematic Wave Routing method simplifies calculations by assuming uniform flow, offering faster analysis for straightforward drainage networks. Users can select the most suitable approach based on their project needs, ensuring accurate and efficient stormwater management.
Sump Design
In MiTS 3, Sump Design feature allows users to define sump dimensions, including wall and floor thickness, ensuring structural integrity and proper drainage flow. Unlike previous versions, MiTS 3 requires sump sizes to be proportionate to the connected drainage system to pass the analysis. This ensures efficient water collection and discharge while preventing design failures.
Customizable Drain
The Storm Water module now allows users to customize drain types and dimensions to suit specific project requirements. Users can define unique drain shapes, ensuring greater flexibility in drainage design. This enhancement enables more precise modeling of stormwater flow, optimizing system performance while adhering to design standards.
