EVI™ is a pedestrian dynamics software tool designed specifically for application within the ship design spiral. First released in 2002, EVI™ has a long history of supporting designers and shipyards in analysing ship evacuation procedures and in understanding the effect of ship layout on evacuation times and highlighting areas of congestion.

EVI™ enables rapid modelling of environments, with prebuilt demographics for standard IMO Day and Night cases making it simpler to evaluate ship designs against regulatory requirements. The software generates visual simulation outputs that are intuitive to interpret, along with detailed numerical results presented in graphs and tables for comprehensive analysis.

IMO Regulatory Rules

IMO rules for evacuation analysis, which initially applied only to Ro-Pax ships, now cover all passenger ships carrying more than 36 people and with keels laid on or after January 2020. Shipyards and designers must demonstrate compliance with IMO performance standards for evacuation, including muster and abandonment times.

The defined performance standards are:

• 60 minutes for Ro-Pax ships or vessels with three main vertical zones or fewer.
• 80 minutes for vessels with more than three main vertical zones.

EVI™ simplifies this process, ensuring designs meet the required standards efficiently and effectively.

Beyond Evacuation

EVI™ extends beyond evacuation analysis. Its flexible scripting interface allows precise control over simulations, including custom agent behaviours and objectives. This adaptability has been used to optimise port layouts, analyse ship disembarkation, and improve the efficiency of dock and shift patterns during shipbuilding.

Exploded deck view in EVI™

Example Simulation

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