MobilityTestbed,[2] formerly known as DARP Simulation Testbed, is an open-source, interaction-rich Multi-agent simulation model designed to test and evaluate various Dial-a-ride problem algorithms or other central or decentralized coordination or Resource allocation mechanisms within on-demand transportation systems. The testbed is built on top of the AgentPolis[3] platform and employs a discrete event simulation[4][5] paradigm.