The Zephyr Foundation has awarded PopulationSim its “Zephyr Software Badge” after RSG Senior Director Joel Freedman nominated the program. The award was made after Zephyr's Software Badging process found that the population synthesis program is easy to use, useful to Zephyr's community of users, and contributed to a common problem space.
RSG originally developed the population synthesis program for the Oregon Department of Transportation and its partner agencies. It replaced multiple population synthesis tools being used throughout the state at the time. Unlike other population synthesis software products, PopulationSim handles multiple geographies and avoids algorithmic errors. Moreover, RSG built it using software engineering best practices. This reduces the likelihood of bugs and enhances its utility to users. RSG included PopulationSim in the Python-based ActivitySim modeling framework, which we also led the development of.