Practice question

What is 'transit signal priority' (TSP) and how does it differ from emergency vehicle preemption?

  1. They are the same thing with different names
  2. Priority modifies timing; preemption overrides it
  3. TSP is faster and more aggressive than preemption
  4. Preemption is used for buses; TSP is used for fire trucks

Answer: B — Priority modifies timing; preemption overrides it

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