A traffic management system that manages policy agreements between operators and visual indicator devices receives first sensor data from a physical environment. The traffic management system computationally processes the first sensor data to identify a first visual indication in the sensor data and determines that the first visual indication is associated with first policy agreement. The traffic management system then determines, based on the first sensor data, that a first visual indicator system that provided the first visual indication is violating a first policy included in the first policy agreement and, in response, provides a policy violation notification that the first visual indicator system is violating the first policy.