5.1.7 - Provide Traveler and Remote Area Security DFD
This DFD shows the processes that make up the Provide Traveler and Remote Area Security facility within the Manage Emergency Services function. These processes collect and preliminarily analyze sensor and surveillance data from secure areas. These secure areas include those frequented by travelers (rest stops, transit stops, on-board transit vehicles, etc.) and those typically away from travelers (bridges, tunnels, etc.). These processes also provide an interface to the traveler and transit vehicle operator for reporting emergencies.The key points about the facility are as follows:
- Raw and preliminarily processed sensor and surveillance data to other processes within the Manage Emergency Services function;
- Sensor and surveillance data analyzed to detect threats;
- Sensors and surveillance equipment monitored to detect and report any sensor faults;
- Interface to travelers and transit vehicle operators for reporting of emergencies and broadcast advisory messages to all travelers in the secure area.
There are four processes in this DFD, three of which are DFDs themselves:
a) Provide Traveler Security (DFD 5.1.7.1).
b) Provide Remote Security (DFD 5.1.7.2).
c) Provide Transit Vehicle Security (DFD 5.1.7.3).
d) Manage Alarms (5.1.7.4).
Processes (a), (b), and (c) represent similar processes located in different places. Process (a) represents function located in areas frequented by travelers, process (b) represents function located in remote areas typically away from travelers, and process (c) represents function on-board a transit vehicle. In all three processes, video and audio surveillance data are collected, preliminarily processed, and both the raw and processed data, as well as any potential threats or incidents detected are sent to center processes for further correlation, verification, and dissemination to other functions. All surveillance and sensor status and faults collected by processes (a), (b), and (c) are sent to other processes which then forward them to the Manage Maintenance and Construction facility for correction. Processes (a) and (c) provide an interface to the traveler (or transit vehicle operator) for declaring emergencies, and receive advisory information from another process in the Manage Emergency Services function for broadcast in the secure area. The declared emergencies are input to process (d) and sent on to other facilities that collect and respond to all potential incidents in the Manage Emergency Services facility. The above processes may be implemented as a single coordinated group or in part.
DFD: 5.1.7 - Provide Traveler and Remote Area Security
Parent DFD: 5.1 - Provide Emergency Service Allocation
Child DFDs:
- 5.1.7.1 - Provide Traveler Security
- 5.1.7.2 - Provide Remote Security
- 5.1.7.3 - Provide Transit Vehicle Security
PSpecs in this DFD:
