Ohio Statewide ITS Architecture

Functional Requirements

Functional requirements 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 subsystems and terminators from the National ITS Architecture. The general descriptions associated with these entities 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 Areas" that provide additional functional detail. At the most detailed level, each functional area includes several specific Functional Requirements that precisely specify the functions to be performed. All three levels of detail are available on this web site. The subsystems and functional areas 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.

Subsystem	Functional Area
Archived Data Management	Government Reporting Systems Support
	ITS Data Repository
	On-Line Analysis and Mining
	Traffic and Roadside Data Archival
Commercial Vehicle	On-board CV Electronic Data
	On-board CV Safety and Security
	On-board Trip Monitoring
Commercial Vehicle Administration	CV Data Collection
	CV Information Exchange
	CV Safety and Security Administration
Commercial Vehicle Check	Citation and Accident Electronic Recording
	Roadside Electronic Screening
	Roadside Safety and Security Inspection
	Roadside WIM
Emergency Management	Emergency Call-Taking
	Emergency Dispatch
	Emergency Early Warning System
	Emergency Evacuation Support
	Emergency Response Management
	Incident Command
	Service Patrol Management
Emergency Vehicle	On-board EV En Route Support
Emissions Management	Emissions Data Management
Fleet and Freight Management	Fleet Administration
	Fleet HAZMAT Management
	Freight Administration and Management
Information Service Provider	Basic Information Broadcast
	Infrastructure Provided Trip Planning
	Interactive Infrastructure Information
Maintenance and Construction Management	MCM Environmental Information Processing
	MCM Maintenance Decision Support
	MCM Vehicle Tracking
	MCM Winter Maintenance Management
	MCM Work Activity Coordination
Maintenance and Construction Vehicle	MCV Roadway Maintenance and Construction
	MCV Vehicle Location Tracking
	MCV Vehicle Safety Monitoring
	MCV Vehicle System Monitoring and Diagnostics
	MCV Winter Maintenance
Parking Management	Parking Coordination
	Parking Electronic Payment
	Parking Management
Payment Administration	Toll Administration
Personal Information Access	Personal Basic Information Reception
	Personal Interactive Information Reception
Remote Traveler Support	Remote Basic Information Reception
	Remote Interactive Information Reception
	Remote Transit Fare Management
	Remote Transit Information Services
Roadway	Advanced Rail Crossing
	Field Barrier System Control
	Roadway Automated Treatment
	Roadway Basic Surveillance
	Roadway Data Collection
	Roadway Dynamic Lane Management and Shoulder Use
	Roadway Emissions Monitoring
	Roadway Environmental Monitoring
	Roadway Equipment Coordination
	Roadway Infrastructure Monitoring
	Roadway Intersection Safety Warning
	Roadway Signal Controls
	Roadway Signal Preemption
	Roadway Signal Priority
	Roadway Speed Monitoring and Warning
	Roadway Traffic Information Dissemination
	Roadway Traffic Metering
	Roadway Variable Speed Limits
	Roadway Warning
	Roadway Work Zone Traffic Control
	Standard Rail Crossing
Roadway Payment	Toll Plaza Toll Collection
Traffic Management	Barrier System Management
	Collect Traffic Surveillance
	TMC Automated Vehicle Operations
	TMC Dynamic Lane Management and Shoulder Use
	TMC Evacuation Support
	TMC Multimodal Crossing Management
	TMC Regional Traffic Management
	TMC Signal Control
	TMC Traffic Information Dissemination
	TMC Traffic Management Decision Support
	TMC Traffic Metering
	TMC Traffic Network Performance Evaluation
	Traffic Data Collection
Transit Management	Transit Center Fare Management
	Transit Center Fixed-Route Operations
	Transit Center Information Services
	Transit Center Paratransit Operations
	Transit Center Passenger Counting
	Transit Center Security
	Transit Center Vehicle Tracking
	Transit Garage Maintenance
	Transit Vehicle Assignment
	Transit Vehicle Operator Assignment
Transit Vehicle	On-board Maintenance
	On-board Paratransit Operations
	On-board Passenger Counting
	On-board Schedule Management
	On-board Transit Fare Management
	On-board Transit Information Services
	On-board Transit Security
	On-board Transit Signal Priority
	On-board Transit Trip Monitoring
Vehicle	Vehicle Automated Operations
	Vehicle Intersection Control
	Vehicle Intersection Safety Warning
	Vehicle Lateral Control
	Vehicle Lateral Warning System
	Vehicle Location Determination
	Vehicle Longitudinal Control
	Vehicle Longitudinal Warning System
	Vehicle Pre-Crash Safety Systems
	Vehicle Safety Monitoring System
	Vehicle Toll/Parking Interface
	Vehicle Warning System