AVSS03-Longitudinal Safety Warning
Transaction Set Diagram



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The following discusses how the National ITS Architecture provides the transportation service described by this market package. Each numbered item describes the operation of that portion of the market package identified with the corresponding number on the transaction set diagram.

  1. The vehicle receives input from the Driver (e.g. throttle and brake). Data is also collected from sensors on the vehicle associated with basic vehicle systems (e.g. traction control, anti-lock brakes, speedometer, accelerometer, and basic engine measurements) and sensor data regarding objects that may be in front of or behind the vehicle. The Vehicle subsystem analyzes this data and presents updates and alarms to the Driver regarding potential collision with objects, people or vehicles ahead of or behind the vehicle.

Hypertext Architecture Version 6.0.0 generated on 4/23/2007 from the following databases
Physical Architecture dated 4/6/2007,
Logical Architecture dated 4/23/2007,
Market Packages dated 4/23/2007,
Security dated 4/20/2007,
User Services dated 4/9/2007,
AppMap dated 4/23/2007 and the
SDOMAP dated 4/23/2007