Editing
• Dynamic elevation updates from terrain models
• Stand-alone Windows interface
• Ability to run within:
o MicroStation (license required)
o OpenRoads Designer| OpenSite Designer| and OpenRail Designer (licenses required)
• Unlimited undo and redo
• Element morphing| splitting| and reconnection
• Automatic element labeling
• Scaled| schematic| and hybrid environments
• Element prototypes
• Aerial view and dynamic zooming
• Named view library
• Multiple background-layer support
• Image| CAD| and GIS background support
• Inferencing tool (to interpolate missing elevation data)
• Automatic calculation of elevations on pipe split operation
• Automatic input and result fields filtering (based on solver used)
• Ability to track model changes| date| element| and more
• Ability to add online Bing Maps as background

Hydraulics and Operations
• Steady-state simulations
• Energy Cost analysis
• Extended period simulations
• Flow profile methods: capacity and backwater analysis
• Automatic constraint-based design
• Diversion simulation
• Rule-based or logical controls
• Tractive stress calculations
• Accurate variable-speed pumping
• Pump batteries element
• System head curves
• Totalizing flow meters
• Air valves for high points in force mains
• Control structures (culvert inlet| weirs| orifices| depth-flow curve)
• HEC-22 node head loss calculations
• Complex manifolded pump stations/force mains
• Pond outlet structure calculations
• Support for catchment elements
• Support for culvert headwalls and endwalls
• Low impact development control analysis

Interoperability and Model Building
• Single set of model files for three compatible interfaces
• Import of MX Drainage files
• LandXML data import and export
• Polyline-to-pipe conversion from DXF and DWG files
• Spreadsheet| database| Shapefile| and OLE DB connections
• Elevation extraction from contours| points| and Shapefiles
• Interpolating elevations between elements
• Automatic elevation updates using terrain models
• Interpolating elevations at split
• GIS-ID property (to maintain associations between records in source file and elements in model)
• Seed files (new models template)
• Oracle Locator/spatial data connection
• Automated assignment of elevation data to manhole elements

• Unified file format with StormCAD| CivilStorm| and SewerGEMS • Import/export of OpenRoads Designer storm and sanitary files

Sanitary Load Allocation and Estimation
• Automatic sanitary load allocation from geospatial data
• Geospatial load allocation from billing meters
• Load allocation using flow monitoring distribution
• Land-use based load distribution
• Sewer load assignment based on phased land-use projections and population projections
• Dry-weather load assignment using hydrographs| unit loads| and pattern-based loads
• Customizable area-| count-| discharge-| and population based unit sanitary loading library
• Pipe length| diameter| surface area| length-diameter| or user defined infiltration load type

Model Management
• Unlimited scenarios and alternatives
• Comprehensive scenario management
• Scenario comparison
• Diversions displayed as links
• Active topology (to activate or deactivate network elements)
• Tabular reports with global editing
• Tabular report sorting and persistent filtering
• Table opening on selection
• Customizable engineering libraries for extreme flow factors| section size| material properties| minor losses| and unit sanitary (dry-weather) loads
• Dynamic (query-based) and static selection sets
• Element selection by polygon
• Element selection inversion
• Statistical analysis from tabular reports
• Global engineering-units management
• Drawing review tools for consistent connectivity
• Automatic topology review
• Network navigator with dozens of useful predefined queries
• Orphaned node and dead-end pipe queries
• Hyperlink for network elements
• Custom data fields (with user-assigned or formula-based values)
• Surface water flow direction displayed across any terrain
• ProjectWise and ProjectWise Geospatial Management support

Results Presentation
• Thematic mapping
• Dynamic| multi-parameter| and multi-scenario graphing
• Advanced dynamic profiling
• Advanced tabular reporting with FlexTables
• Property-based color coding and symbology
• Property-based annotation
• Project inventory report
• Scenario summary report
• Element report and graphs
• Hydrograph graphs
• Contouring with export to Shapefile| DXF| and native CAD format

Stormwater Load Allocation and Estimation
• Runoff methods: SCS Unit Hydrograph| Modified Rational Method| EPA SWMM| RTK Unit Hydrograph| generic Unit Hydrograph| Time-Area Method| ILSAX and user-defined hydrograph
• Time of concentration methods: User-defined| Carter| Eagleson| Espey/ Winslow| Federal Aviation Agency| Kerby/Hathaway| Kirpich (PA and TN)| Length and Velocity| SCS Lag| TR-55 Sheet Flow| TR-55 Shallow Concentrated Flow| TR-55 Channel Flow| Friend| Kinematic Wave| Bransby-Williams| and UK standard
• Loss Methods: Constant loss rate| Green and Ampt| Horton| Initial Loss and Constant Fraction| Initial Loss and Constant Loss Rate| SCS Curve Number