Transoft Solutions, Vancouver, B.C., has launched its roundabout design software, Torus. Powered by the AutoTURN engine and the result of two years of development, Torus is the first swept-path roundabout geometry designing software. Designing modern roundabouts is an iterative process. It is a balancing act between geometry, operational performance and safety. Traditionally, this balancing act has been a labour-intensive manual exercise. Torus was developed around dynamic editing tools to give a user the ability to considerably reduce the number of iterations needed while receiving immediate feedback on fastest drive paths and critical sightlines as the result of design changes. Torus provides users with the ability to instantly visualize the effect of minor changes on traffic safety as well as the operational performance of a roundabout’s design.