3 - Provide Vehicle Monitoring and Control DFD
This DFD shows the processes that make up the Provide Vehicle Monitoring and Control function. This function is responsible for providing facilities for the automatic control of vehicles. The functional processes contained in this DFD satisfy the User Service Requirements from the following User Services:1.6 Traffic Control
5.1 Emergency Notification and Personal Security
6.1 Longitudinal Collision Avoidance
6.2 Lateral Collision Avoidance
6.3 Intersection Collision Avoidance
6.4 Vision Enhancement for Crash Avoidance
6.5 Safety Readiness
6.6 Pre-Crash Restraint Deployment
6.7 Automated Vehicle Operation
8.1 Maintenance and Construction Operations
The key points about the function are as follows:
- Emergency services automatically notified when the vehicle is involved in a collision;
- Cargo information is provided to emergency services if any is present on the vehicle;
- Vehicle control provided at various levels of automation;
- Automatic vehicle control canceled by driver action or failure of built in self test processes.
There are five processes in this DFD, three of which are DFDs themselves:
a) Monitor Vehicle Status (DFD 3.1)
b) Provide Automatic Vehicle Operation (DFD 3.2)
c) Provide Automatic Emergency Notification (DFD 3.3)
d) Enhance Driver’s Vision (3.4)
e) Generate Vehicle Access Requests (3.5)
Although links are provided between the processes, they can operate independently. All of the processes use the Provide Information Services facility - see DFD 6.2, to interface with the driver for the input of commands and the output of information. Another part of the Provide Driver and Traveler function (see DFD 6) is used to provide the vehicle’s location for the automatic notification of emergency situations.
DFD: 3 - Provide Vehicle Monitoring and Control
Parent DFD: 0 - Manage ITS
Child DFDs:
- 3.1 - Monitor Vehicle Status
- 3.2 - Provide Automatic Vehicle Operation
- 3.3 - Provide Automatic Emergency Notification
PSpecs in this DFD:
