All Lessons for Source

Source: Traffic Signal Preemption for Emergency Vehicles: A Cross-Cutting Study

Conduct rigorous testing prior to deployment of an emergency preemption system to avoid potential problems and negative system impacts.(January 2006)
The experience of multiple agencies with emergency vehicle preemption systems.

Identify a single agency to be responsible for maintenance of an emergency vehicle preemption system.(January 2006)
The experience of multiple agencies with emergency vehicle preemption systems.