We are providing contract project management for the train radio system upgrade for an automated transit system. This is an operationally critical system that carries voice and data. This vital component has to span 3 different train types that were in service since 2001 to the new trains planned to be delivered in the future. The intricate setup required efficient communication from operators in the control room, through the communications and control infrastructure, to the networks and base stations, and finally, to the trains themselves. The project required collaboration between specialists from different organizations and expert oversight to manage the various moving parts. This upgrade will be a landmark project in the industry.