Functions

Functions are a description of WHAT the system has to do. In the architecture, functions are defined at several different levels. Each inventory element is mapped to one or more physical objects from ARC–IT. The general descriptions associated with these physical objects identify functionality in a very general sense. At the next level of detail, most of the ITS elements have been mapped to one or more "Functional Objects" that provide additional functional detail. At the most detailed level, each functional object includes several specific Functional Requirements that more precisely specify the functions to be performed. All three levels of detail are available on this web site. The subsystems and functional objects that are associated with the regional ITS architecture are listed in the table below. Each table entry is a link to more detailed descriptions and functional requirements.

SubsystemFunctional Area
Archived Data SystemArchive Data Repository
CenterCenter Data Collection
Center Field Equipment Management
Emergency Management CenterEmergency Call–Taking
Emergency Dispatch
Emergency Routing
Emergency Vehicle OBEEV On–Board En Route Support
FieldField System Monitoring and Diagnostics
ITS Roadway EquipmentRoadway Basic Surveillance
Roadway Data Collection
Roadway Dynamic Lane Management and Shoulder Use
Roadway Field Device Support
Roadway Signal Control
Roadway Signal Preemption
Roadway Standard Rail Crossing
Maint and Constr Management CenterMCM Incident Management
MCM Maintenance Decision Support
MCM Roadway Maintenance
MCM Vehicle Maintenance Management
MCM Vehicle Tracking
MCM Winter Maintenance Management
MCM Work Activity Coordination
Maint and Constr Vehicle OBEMCV Vehicle Location Tracking
MCV Vehicle System Monitoring and Diagnostics
Personal Information DevicePersonal Traveler Information Reception
Traffic Management CenterTMC Basic Surveillance
TMC Data Collection
TMC Dynamic Lane Management and Shoulder Use
TMC Regional Traffic Management
TMC Signal Control
TMC Standard Rail Crossing Management
Transit Management CenterTransit Center Data Collection
Transit Center Fare Management
Transit Center Fixed–Route Operations
Transit Center Vehicle Tracking
Transit Vehicle OBETransit Vehicle On–Board Fare Management
Transit Vehicle On–Board Information Services
Transit Vehicle On–Board Maintenance
Transit Vehicle On–Board Paratransit Operations
Transit Vehicle On–Board Trip Monitoring
Transit Vehicle Security
Transit Vehicle Signal Priority
Transportation Information CenterTIC Data Collection
TIC Interactive Traveler Information
TIC Traveler Information Broadcast
TIC Trip Planning