On June 8, the software house of engineering and design firm Arup, London, is releasing MassMotion, an industrial-strength pedestrian-behavior analysis tool developed over five years for internal use.

“Previously, it has only been available to us,” says Erin Morrow, the product manager at Oasys Ltd., a firm Arup set up in 1976 to develop, support and market tools built in-house. Mass-Motion has evolved over four version for use in complex, multilevel 3D BIM environments.