5 - Manage Emergency Services DFD
The processes in this DFD make up the Manage Emergency Services function. This function is responsible for the management of the emergency services’ response to incidents and communications with law enforcement agencies. An interface is also provided to the Manage Traffic function for the coordination of incident management functions (including resource coordination between traffic management and emergency management) and to provide priority for emergency vehicles at signalized roadway intersections and freeway ramps. The User Services Requirement satisfied by this functional process tree include those from the following User Services:1.6 Traffic Control
2.4 Public Travel Security
3.1 Electronic Payment Services
4.3 On-Board Safety and Security Monitoring
4.5 Hazardous Materials Security and Incident Response
4.6 Freight Mobility
5.1 Emergency Notifications and Personal Security
5.2 Emergency Vehicle Management
5.3 Disaster Response and Evacuation
7.1 Archived Data Function
8.1 Maintenance and Construction Operations
The key points about the function are as follows:
- ITS functions can automatically call-out appropriate emergency services to an incident;
- Confirmation of response action is provided to the emergency services operator;
- Emergency telephone and E911 systems can call-out appropriate emergency services to an incident;
- Information about incidents can be exchanged with the Manage Incidents facility;
- Emergency vehicles can be provided preemption routing along their routes to an incident;
- Incident responses can be coordinated with other Emergency Management Systems;
- ITS functions provided with access to law enforcement agencies for action on violations;
- Disaster response and evacuation planning and management is handled by this DFD and coordinated with other DFDs.
There are seven processes subordinate to this DFD, three of which are themselves DFDs:
(a) Provide Emergency Service Allocation (DFD 5.1)
(b) Provide Operator Interface for Emergency Data (5.2)
(c) Manage Emergency Vehicles (DFD 5.3)
(d) Provide Law Enforcement Allocation (DFD 5.4)
(e) Update Emergency Display Map Data (5.5)
(f) Manage Emergency Services Data (5.6)
(g) Coordinate Disaster Response and Evacuation (DFD 5.7)
Data about incidents is received by the processes in (a) which determine the response plan from data set up by the emergency services operator. This data is then passed to the processes in (c) for the dispatch of suitable vehicles, and back to the source of the incident information via a process in (a). The processes in (c) monitor the activities of all vehicles and maintain a store of vehicle status from which availability can be determined. They also obtain the route for the vehicle(s) from the Provide Driver and Traveler Services function and send data about the route to the Manage Traffic function to enable an emergency vehicle preemption routing to be provided.
There can be several sets of the processes in (c) above, one for each type of emergency service. The processes in (a) will then send their dispatch data to the most appropriate set(s) of processes in (c). The link to other Emergency Management Services enables coordination to be achieved across jurisdictional and/or operational boundaries thereby helping to achieve the best possible response to an incident. Process (g) handles disaster response and evacuation planning and management and coordinates these functions with other DFDs in the Manage Traffic, Manage Transit, Manage Emergency, Provide Driver and Traveler Services, and Manage Maintenance and Construction facilities.
DFD: 5 - Manage Emergency Services
Parent DFD: 0 - Manage ITS
Child DFDs:
- 5.1 - Provide Emergency Service Allocation
- 5.3 - Manage Emergency Vehicles
- 5.4 - Provide Law Enforcement Allocation
- 5.7 - Coordinate Disaster Response and Evacuation
PSpecs in this DFD:
- 5.2 - Provide Operator Interface for Emergency Data
- 5.5 - Update Emergency Display Map Data
- 5.6 - Manage Emergency Services Data

