April 8, 2025

ICM, Mel Meng

ICM Simulation Results: Maxima vs TVD

Introduction

When reviewing the simulation results, there are two sections TVD and Maxima.

  • Maxima is generated during the simulation, the simulation engine will keep track of the maxima for all the result parameters at every computation time step.
  • TVD is the saved time series which reports the values at the
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ICM, Mel Meng

GIM or Ground Model for InfoWorks ICM

Introduction

When developing a model in InfoWorks ICM for a proposed condition, you often need to update ground model to include the proposed pond, roads, and housing units.

For smaller-scale projects, the process involves exporting the ground model as a grid, importing it into Civil3D, implementing the necessary changes, and … Read the rest

ICM, ICM_SWMM, Inside SWMM5, SWMM3, SWMM4, SWMM5

Extran1 and Extran2 from the Extran Manual for AI, GitHub, SWMM5, used in ICM SWMM and InfoWorks and SWMM5 3rd Party Tests

This is a story about two inp files. It shows the continuity in stormwater modeling from 1980 to 2025 onwards. It is about Extran1 (free outfall) and Extran 2 (fixed backwater with a tide gate) from the 1981 Extran Manual. This compact test case, born in the era of punch … Read the rest

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