Toledo Regional ITS Architecture Update (Final)

Functional Requirements: Roadway Intersection Collision Warning

Description: This equipment package includes field elements that determine the probability of a collision in an intersection by monitoring vehicles approaching the intersection. When a potential collision is detected, this equipment package sends appropriate warnings and/or control actions to the approaching vehicles using a short-range interface. It also provides signal indication information to approaching vehicles to improve intersection safety. This equipment package covers any signalized intersection equipped with intersection collision warning field equipment.
Functional Requirements:
  1. The field element shall utilize traffic sensors to monitor vehicles approaching and occupying an intersection.
  2. The field element shall monitor the operational state, signal timing, and current phase of the traffic signal.
  3. The field element shall monitor road conditions on approaches to, and within, the intersection.
  4. The field element shall communicate with approaching vehicles to determine vehicle position, velocity, acceleration, direction, and intended turning movement.
  5. The field element shall detect potentially hazardous conditions including impending red-light or stop sign violations and potential conflicts between approaching vehicles.
  6. The field element shall provide intersection status and warnings to approaching vehicles using field-vehicle communications.
  7. The field element shall update signs or signals to warn the driver of potentially hazardous situations.
Included In: ODOT District 2 ITS Field Equipment