Nashville Regional ITS Architecture

Inventory

Each stakeholder agency, company, or group owns, operates, maintains or plans ITS systems in the region. The Regional ITS Architecture inventory is a list of "elements" that represent all existing and planned ITS systems in a region as well as non-ITS systems that provide information to or get information from the ITS systems.

Element	Description
Alabama DOT	Alabama Department of Transportation. Responsible for the construction, maintenance, and operation of state roadways in Alabama.
All Municipal and County Emergency Dispatch Agencies	Group of emergency management agencies that includes the following: Metro Nashville Emergency Services Dispatch, City of Franklin Emergency Dispatch, City of Gallatin Emergency Dispatch, City of Hendersonville Emergency Dispatch, City of La Vergne Emergency Dispatch, City of Lebanon Emergency Dispatch, City of Mt. Juliet Emergency Dispatch, City of, Murfreesboro Emergency Dispatch, City of Smyrna Emergency Dispatch, Rutherford County Emergency Dispatch, Sumner, County EMS Dispatch, Sumner County PSAP (Sheriff), Wilson County PSAP, Wilson County EMA Dispatch, Williamson, County Emergency Dispatch, and Municipal Public Safety Dispatch
All Municipal and County Public Safety Vehicles	Vehicles used by City and County law enforcement.
Archive Data User	Users that request information from the data archive systems.
City of Brentwood CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Brentwood DMS	Dynamic message signs used for traffic information dissemination during maintenance and construction activities, special events, or incidents.
City of Brentwood Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of Brentwood Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of Brentwood Fire Vehicles	City of Brentwood Fire Department vehicles.
City of Brentwood Maintenance Vehicles	City of Brentwood vehicles used in maintenance operations.
City of Brentwood Police Vehicles	City of Brentwood Police Department vehicles.
City of Brentwood Portable DMS	Portable dynamic message signs used for traffic information dissemination during maintenance and construction activities, special events, or incidents.
City of Brentwood Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Brentwood Smart Work Zone Equipment	Portable ITS equipment that can be used in work zones to more efficiently manage traffic and provide traveler information. Includes portable closed circuit television (CCTV) cameras, vehicle detection, and dynamic message signs (DMS).
City of Brentwood TOC	Traffic operations center for the City of Brentwood. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by the City of Brentwood.
City of Brentwood Traffic Signals	Traffic signal system operated and maintained by the City of Brentwood.
City of Brentwood Website	Website for the City of Brentwood. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
City of Franklin CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Franklin DMS	Dynamic message signs used for traffic information dissemination during maintenance and construction activities, special events, or incidents.
City of Franklin Email Notification System	Subscription based email notification system for distribution of traffic and roadway maintenance information.
City of Franklin Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of Franklin Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of Franklin Fire Vehicles	City of Franklin Fire Department vehicles.
City of Franklin Incident Response Vehicles	Vehicles used for incident management and motorist assistance as part of an arterial incident management program.
City of Franklin Police Department	Police department for the City of Franklin. The emergency dispatch functions for the Police Department are included in the Franklin 911 Dispatch. Non-emergency functions include the collection of crash data.
City of Franklin Police Vehicles	City of Franklin Police Department vehicles.
City of Franklin Portable DMS	Portable dynamic message signs used for traffic information dissemination during maintenance and construction activities, special events, or incidents.
City of Franklin Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Franklin Reversible Lane Equipment	Lane control signals are other traffic control devices used in the operation of reversible lanes.
City of Franklin RWIS	Road weather information system sensors to monitor weather conditions at the roadway.
City of Franklin Smart Work Zone Equipment	Portable ITS equipment that can be used in work zones to more efficiently manage traffic and provide traveler information. Includes portable closed circuit television (CCTV) cameras, vehicle detection, and dynamic message signs (DMS).
City of Franklin Speed Monitoring Equipment	Field equipment used for monitoring roadway speeds.
City of Franklin TOC	Traffic operations center for the City of Franklin. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, and any other ITS infrastructure deployed by the City of Franklin.
City of Franklin Traffic Signals	Traffic signal system operated and maintained by the City of Franklin.
City of Franklin Website	Website for the City of Franklin. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
City of Gallatin CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Gallatin Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of Gallatin Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of Gallatin Fire Vehicles	City of Gallatin Fire Department vehicles.
City of Gallatin Police Vehicles	City of Gallatin Police Department vehicles.
City of Gallatin Portable DMS	Portable dynamic message signs used for traffic information dissemination during maintenance and construction activities, special events, or incidents.
City of Gallatin Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Gallatin TOC	Traffic operations center for the City of Gallatin. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by the City of Gallatin.
City of Gallatin Traffic Signals	Traffic signal system operated and maintained by the City of Gallatin.
City of Gallatin Website	Website for the City of Gallatin. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
City of Hendersonville CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Hendersonville Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of Hendersonville Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of Hendersonville Fire Vehicles	City of Hendersonville Fire Department vehicles.
City of Hendersonville Police Vehicles	City of Hendersonville Police Department vehicles.
City of Hendersonville Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Hendersonville TOC	Traffic operations center for the City of Hendersonville. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by the City of Hendersonville.
City of Hendersonville Traffic Signals	Traffic signal system operated and maintained by the City of Hendersonville.
City of Hendersonville Website	Website for the City of Hendersonville. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
City of La Vergne CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of La Vergne Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of La Vergne Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of La Vergne Fire Vehicles	City of La Vergne Fire Department vehicles.
City of La Vergne Police Vehicles	City of La Vergne Police Department vehicles.
City of La Vergne TOC	Traffic operations center for the City of La Vergne. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by the City of La Vergne.
City of La Vergne Traffic Signals	Traffic signal system operated and maintained by the City of La Vergne.
City of La Vergne Website	Website for the City of La Vergne. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
City of Lebanon CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Lebanon Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of Lebanon Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of Lebanon Fire Vehicles	City of Lebanon Fire Department vehicles.
City of Lebanon Police Vehicles	City of Lebanon Police Department vehicles.
City of Lebanon Portable DMS	Portable dynamic message signs used for traffic information dissemination during maintenance and construction activities, special events, or incidents.
City of Lebanon TOC	Traffic operations center for the City of Lebanon. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by the City of Lebanon.
City of Lebanon Traffic Signals	Traffic signal system operated and maintained by the City of Lebanon.
City of Lebanon Website	Website for the City of Lebanon. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
City of Mt. Juliet CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Mt. Juliet Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of Mt. Juliet Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of Mt. Juliet Fire Vehicles	City of Mt. Juliet Fire Department vehicles.
City of Mt. Juliet Police Vehicles	City of Mt. Juliet Police Department vehicles.
City of Mt. Juliet TOC	Traffic operations center for the City of Mt. Juliet. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by the City of Mt. Juliet.
City of Mt. Juliet Traffic Signals	Traffic signal system operated and maintained by the City of Mt. Juliet.
City of Mt. Juliet Website	Website for the City of Mt. Juliet. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
City of Murfreesboro CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Murfreesboro DMS	Dynamic message signs for traffic information dissemination operated by the City of Murfreesboro.
City of Murfreesboro Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of Murfreesboro Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of Murfreesboro Fire Vehicles	City of Murfreesboro Fire Department vehicles.
City of Murfreesboro Police Vehicles	City of Murfreesboro Police Department vehicles.
City of Murfreesboro Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Murfreesboro TOC	Traffic operations center for the City of Murfreesboro. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by the City of Murfreesboro.
City of Murfreesboro Traffic Signals	Traffic signal system operated and maintained by the City of Murfreesboro.
City of Murfreesboro Website	Website for the City of Murfreesboro. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
City of Nashville Fire and EMS Vehicles	City of Nashville Fire Department and Emergency Medical Services vehicles serving the City of Nashville.
City of Smyrna CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Smyrna Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of Smyrna Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of Smyrna Fire Vehicles	City of Smyrna Fire Department vehicles.
City of Smyrna Police Vehicles	City of Smyrna Police Department vehicles.
City of Smyrna Portable DMS	Portable dynamic message signs used for traffic information dissemination during maintenance and construction activities, special events, or incidents.
City of Smyrna TOC	Traffic operations center for the City of Smyrna. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by the City of Smyrna.
City of Smyrna Traffic Signals	Traffic signal system operated and maintained by the City of Smyrna.
City of Smyrna Website	Website for the City of Smyrna. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
City of Spring Hill CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Spring Hill Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders.
City of Spring Hill Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
City of Spring Hill Fire Vehicles	City of Spring Hill Fire Department vehicles.
City of Spring Hill Police Vehicles	City of Spring Hill Police Department vehicles.
City of Spring Hill TOC	Traffic operations center for the City of Spring Hill. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by the City of Spring Hill.
City of Spring Hill Traffic Signals	Traffic signal system operated by the City of Spring Hill.
City of Spring Hill Website	Website for the City of Spring Hill. Includes information on City departments and in the future it is envisioned that the website may have real-time information about roadway conditions, including traffic images.
Commercial Vehicles	Privately owned commercial vehicles traveling within the Region.
Electronic Fare Payment Card	Medium for collection of transit fares electronically.
Financial Service Provider	Service provider that handles exchange of money for transit electronic payment collection.
Franklin Transit Authority Data Archive	Transit data archive for Franklin Transit. Used by the National Transit Database, Federal Transit Administration, and TDOT Office of Public Transportation.
Franklin Transit Authority Dispatch	Transit dispatch center responsible for the tracking, scheduling, and dispatching of fixed route and paratransit vehicles operated by Franklin Transit.
Franklin Transit Authority Facility CCTV Camera Surveillance	Closed circuit television camera surveillance at transit transfer centers or other transit facilities.
Franklin Transit Authority Fixed-Route Vehicles	Franklin Transit fixed route vehicles.
Franklin Transit Authority Kiosks	Kiosks for dissemination of transit traveler information. Kiosks can also be used for the purchase and recharging of electronic fare payment cards.
Franklin Transit Authority Paratransit Vehicles	Franklin Transit vehicles that provide transit means for disabled passengers.
Franklin Transit Authority Website	Website for Franklin Transit. Includes information on Franklin Transit services and in the future it is envisioned that the website will have real-time bus arrival information..
Health and Human Services	Agency responsible for providing health related services including the subsidization of transportation to obtain medical services.
Inter-City Commuter Bus Service	Commuter bus service operated by private bus service providers.
Kentucky Transportation Cabinet	The Kentucky Transportation Cabinet is responsible for the construction, maintenance, and operation of state roadways in Kentucky.
Local Print and Broadcast Media	Local media that provide traffic or incident information to the public.
Local School Bus Dispatch	Recipient of road weather condition information.
MCHRA IVR System	Mid-Cumberland Human Resource Agency interactive voice response system. The interactive portion of the system is not yet operational, but an automated reminder system for scheduled trips or notification of service disruptions is.
MCHRA Transit Data Archive	Mid-Cumberland Human Resource Agency transit ridership statistics used by the National Transit Database, FTA, and TDOT Office of Public Transportation.
MCHRA Transit Dispatch	Mid-Cumberland Human Resource Agency dispatch for curb to curb rural public transit services in 12 middle Tennessee Counties including Robertson, Sumner, Wilson, Williamson and Rutherford counties in the Nashville Region.
MCHRA Transit Facility CCTV Camera Surveillance	Mid-Cumberland Human Resource Agency closed circuit television camera surveillance at transit transfer centers or other transit facilities.
MCHRA Transit Vehicles	Mid-Cumberland Human Resource Agency demand response vehicle fleet.
MCHRA Website	Mid-Cumberland Human Resource Agency transit website. Includes information on services and in the future it is envisioned that the website will have real-time information about regional transit services and the ability to make trip requests online.
Metro Nashville	Government for that City of Nashville and Davidson County. Covers all departments including those that deal with traffic and public safety.
Metro Nashville CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
Metro Nashville DMS	Dynamic message signs for traffic information dissemination operated by Metro Nashville.
Metro Nashville Email Notification System	Subscription based notification service for the distribution of emergency management and traffic management information.
Metro Nashville Emergency Services Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within Davidson County and dispatching emergency responders or transferring the call to the appropriate municipal emergency dispatch.
Metro Nashville Engineers Office	Responsible for the administration of Metro Nashville maintenance and construction projects.
Metro Nashville Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
Metro Nashville Incident Response Vehicles	Vehicles used for incident management and motorist assistance as part of an arterial incident management program.
Metro Nashville Maintenance Vehicles	Metro Nashville vehicles used in maintenance operations.
Metro Nashville OEM	Office of Emergency Management for the City of Nashville and Davidson County. The OEM plays daily role in traffic incident management as well as operating the EOC during large scale emergencies.
Metro Nashville Police Department	Police department for Metro Nashville. The emergency dispatch functions for the Police Department are included in the Metro Nashville Emergency Services Dispatch. Non-emergency functions include the collection of crash data and enforcement of speed limits and commercial vehicles.
Metro Nashville Police Vehicles	Metro Nashville Police Department vehicles.
Metro Nashville Portable DMS	Portable dynamic message signs used for traffic information dissemination during maintenance and construction activities, special events, or incidents.
Metro Nashville Public Works Department	Department that oversees the maintenance of streets, sidewalks, and roadway right-of-way.
Metro Nashville Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
Metro Nashville Reversible Lane Equipment	Lane control signals are other traffic control devices used in the operation of reversible lanes.
Metro Nashville RWIS	Road weather information system sensors to monitor weather conditions at the roadway.
Metro Nashville Speed Monitoring Equipment	Field equipment used for monitoring roadway speeds.
Metro Nashville TOC	Traffic operations center for Metro Nashville. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by Metro Nashville.
Metro Nashville Traffic Signals	Traffic signal system operated and maintained by Metro Nashville.
Metro Nashville Website	Website that includes information on Metro Nashville departments. In the future it is envisioned that the website would have real-time information about roadway conditions.
MTA Data Archive	Metropolitan Transit Authority transit ridership statistics used by the National Transit Database, FTA, and TDOT Office of Public Transportation.
MTA Dispatch	Metropolitan Transit Authority dispatch for transit service in Nashville and portions of Davidson County. MTA operates fixed route buses, paratransit service, and park and ride facilities for MTA riders, carpoolers and vanpoolers.
MTA Email Notification System	Metropolitan Transit Authority subscription based email notification system for dissemination of route disruption or delay information.
MTA Facility CCTV Camera Surveillance	Metropolitan Transit Authority closed circuit television camera surveillance at transit transfer centers or other transit facilities.
MTA Fixed Route Vehicles	Metropolitan Transit Authority fixed route vehicles. Includes neighborhood routes, downtown trolleys, bus rapid transit, and any other fixed route service.
MTA Kiosks	Metropolitan Transit Authority kiosks for dissemination of transit traveler information. Kiosks can also be used for the purchase and recharging of electronic fare payment cards.
MTA Paratransit Vehicles	Metropolitan Transit Authority paratransit vehicles.
MTA Website	Metropolitan Transit Authority website. Includes information on MTA services and in the future it is envisioned that the website will have real-time information about regional transit services.
Municipal CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
Municipal Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
Municipal Public Safety Dispatch	Responsible for the dispatch of municipal public safety vehicles.
Municipal Public Safety Vehicles	Vehicles used by public safety in Municipal County, including the Municipal County Sheriff's Office.
Municipal TOC	Traffic operations centers responsible for the operation of municipal signal systems and any other municipal ITS infrastructure.
Municipal Traffic Signals	Municipal traffic signal systems within the Nashville Region.
Municipal/County Engineers Office	Municipal/County Engineer's office is responsible for administration of maintenance and construction projects within the Region as well as communicating work zone information to the public through the Public Information Office.
Municipal/County Maintenance	Department that oversees the maintenance of streets, sidewalks, and roadway right-of-way.
Municipal/County Maintenance Vehicles	Vehicles used by Municipal/County maintenance departments in maintenance and construction activities.
Municipal/County Portable DMS	Portable dynamic message signs used for traffic information dissemination during maintenance and construction activities, special events, or incidents.
Municipal/County RWIS	Road weather information system sensors to monitor weather conditions at the roadway.
Municipal/County Website	Municipal or county website that includes information on agency departments. In the future it is envisioned that the website would have real-time information about roadway conditions.
Nashville Area MPO Data Archive	Archive of regional transportation data used in planning.
National Weather Service	Provides official US weather, marine, fire, and aviation forecasts, warnings, meteorological products, climate forecasts, and information about meteorology.
Online Routing Service Provider	Third party routing service, such as Google Transit, that uses transit route and schedule information to provide personalized transit trip planning.
Other Davidson County Emergency Dispatch Agencies	Group of emergency management agencies in Davidson County that includes the following: City of Oak Hill, City of Berry Hill, City of Forest Hills, City of Lakewood, City of Belle Meade, City of Goodlettsville, Vanderbilt University Police Department, Tennessee State Police Department, and BNA Airport Police
Other Maintenance and Construction Management	Additional maintenance and construction operations agencies with which information is shared for coordination in an emergency situation.
Other Traffic Management	Additional traffic management agencies with which information is shared for coordination in an emergency situation.
Personal Computing Devices	Computing devices that travelers use to access public information.
Private Probe Data Provider	Private provider of aggregated vehicle probe data for monitoring of road network conditions.
Private Sector Traveler Information Services	Traveler information service operated by a private entity.
Private Transportation Providers	Private providers of transportation services in the Region such as taxis and intercity bus service.
Private Vehicle	Private vehicles used by travelers.
Rail Operator Wayside Equipment	Equipment located along the tracks including railroad crossing gates, bells, and lights as well as the interface to the traffic signal controller indicating the presence of a train.
Rover Fixed-Route Vehicles	Rover transit fixed route vehicles.
Rover Kiosks	Kiosks for dissemination of transit traveler information. Kiosks can also be used for the purchase and recharging of electronic fare payment cards.
Rover Transit Data Archive	Transit ridership statistics used by the National Transit Database, FTA, and TDOT Office of Public Transportation.
Rover Transit Dispatch	Fixed route transit service in the City of Murfreesboro. Paratransit services are provided by MCHRA Transit.
Rover Transit Facility CCTV Camera Surveillance	Closed circuit television camera surveillance at transit transfer centers or other transit facilities.
Rover Website	Website for Rover Transit. Includes information on Rover services and in the future it is envisioned that the website will have real-time bus arrival information.
RTA Data Archive	Transit ridership statistics used by the National Transit Database, FTA, and TDOT Office of Public Transportation.
RTA Dispatch	The Regional Transportation Authority operates regional express bus routes between Nashville and surrounding areas. RTA also operates the Music City Star Regional Rail.
RTA Express Buses	Regional express route serving areas surrounding Nashville that connects to the Nashville MTA system.
RTA Facility CCTV Camera Surveillance	Closed circuit television camera surveillance at transit transfer centers or other transit facilities.
RTA Regional Rail	Commuter rail service operated by RTA.
RTA Website	Website for the Regional Transportation Authority. Includes information on RTA services and in the future it is envisioned that the website will have real-time information about regional transit services.
Rutherford County EMA	Emergency management agency for Rutherford County. Responsible for disaster planning for the County and operating the emergency operations center (EOC).
Rutherford County Emergency Dispatch	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the county and dispatching emergency responders.
Rutherford County EMS Vehicles	Rutherford County Emergency Management Services vehicles.
Rutherford County Sheriff Vehicles	Rutherford County Sheriff's Office vehicles.
Rutherford County Traffic Signals	Traffic signal system operated by Rutherford County.
Social Networking Services	Subscription based services operated by private providers that provide an option for real-time traveler information dissemination. Examples of such services include Facebook or Twitter.
Sumner County EMA	Emergency management agency for Sumner County. Responsible for disaster planning for the County and operating the emergency operations center (EOC).
Sumner County EMS Dispatch	Responsible for dispatch of Sumner County emergency medical services vehicles.
Sumner County EMS Vehicles	Sumner County emergency medical services vehicles.
Sumner County PSAP	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the county and dispatching emergency responders.
Sumner County Sheriff Vehicles	Sumner County Sheriff's Office vehicles.
Sumner County TOC	Traffic operations center for the Sumner County. Responsible for the operation of the traffic signal system, closed circuit television (CCTV) cameras, dynamic message signs (DMS), and any other ITS infrastructure deployed by Sumner County.
Sumner County Traffic Signals	Traffic signal system operated and maintained by Sumner County.
TDOT CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
TDOT District Maintenance	Office that handles most of the routine roadway maintenance and responds to incidents when services are requested by local emergency management.
TDOT DMS	Dynamic message signs for traffic information dissemination.
TDOT Emergency Services Coordinator	Coordinator responsible for managing the Tennessee Department of Transportation response in a large scale incident or disaster in which the Tennessee Emergency Management Agency (TEMA) activates the state emergency operations center (EOC).
TDOT Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems (VIVDS), remote traffic microwave sensors (RTMS), or traditional loops.
TDOT HAR	Highway advisory radio for traffic information dissemination.
TDOT HELP Vehicles	Roadway service patrol vehicles. Currently operate in the Nashville area only and are dispatched elsewhere in the Region for large incidents.
TDOT HOV Lane Field Equipment	Devices, such as lane control signals or dynamic message signs, that are used in the operation of the HOV lane system.
TDOT Maintenance Headquarters	The Tennessee Department of Transportation maintenance headquarters.
TDOT Maintenance Vehicles	The Tennessee Department of Transportation vehicles used in maintenance operations.
TDOT Project Planning Division Archive	Data archive for the Project Planning Division. The Division is responsible for traffic data collection and analysis and includes the Short Range Planning Office.
TDOT Public Information Office	Office responsible for the dissemination of traffic information to the media and the public.
TDOT Ramp Metering Equipment	Roadway equipment used in the operation of a ramp metering system. Includes the signals and any other ITS equipment.
TDOT Region 1 TMC - Knoxville	Transportation management center for Region 1, located in Knoxville. Responsible for the operation of the ITS equipment located in Region 1. This includes the freeway management system in Knoxville as well as rural ITS deployments.
TDOT Region 2 TMC - Chattanooga	Transportation management center for Region 2, located in Chattanooga. Responsible for the operation of the ITS equipment located in Region 2. This includes the freeway management system in Chattanooga as well as rural ITS deployments.
TDOT Region 3	TDOT Region 2 is responsible for the administration and operation of the state highway system in 26 counties in central Tennessee.
TDOT Region 3 Construction Office	Office responsible for oversight of construction projects in Region 3.
TDOT Region 3 Engineers Office	Region 3 Engineer's office is responsible for administration of maintenance and construction projects within the Region as well as communicating work zone information to the public through the Public Information Office.
TDOT Region 3 HELP Dispatch	Roadway service patrol dispatch. Currently service is limited to the Nashville area except in the case of a large scale incident.
TDOT Region 3 Maintenance	Region 3 maintenance headquarters. Responsible for maintenance operations in the Region; however, most routine maintenance is handled by the District Maintenance Offices. There are several District Maintenance Offices within the Region.
TDOT Region 3 TMC - Nashville	Transportation management center for Region 3, located in Nashville. Responsible for the operation of the ITS equipment located in Region 3. This includes the freeway management system in Nashville as well as rural ITS deployments.
TDOT Region 4 TMC - Memphis	Transportation management center for Region 4, located in Memphis. Responsible for the operation of the ITS equipment located in Region 4. This includes the freeway management system in Memphis as well as rural ITS deployments.
TDOT RWIS Sensors	Road weather information system sensors to monitor weather conditions at the roadway.
TDOT Smart Work Zone Equipment	Portable ITS equipment that can be used in work zones to more efficiently manage traffic and provide traveler information. Includes portable closed circuit television (CCTV) cameras, vehicle detection, and dynamic message signs (DMS).
TDOT SmartWay Information System (TSIS)	TSIS is a statewide roadway conditions database. Currently information can be entered by District and Regional maintenance personnel as well as staff at any of the traffic management centers (TMCs) and the Tennessee Highway Patrol (THP). TSIS feeds the Statewide 511 system and SmartWay website.
TDOT SmartWay Website	Website providing road network conditions including incident and construction information and camera views. Much of the data for the website comes from TSIS.
TDOT Toll Plazas	Toll plazas used for electronic toll collection on potential future toll roads.
TEMA	Tennessee Emergency Management Agency. Responsible for managing emergency operations during a disaster or large scale incident.
Tennessee 511 IVR	Tennessee 511 Interactive Voice Response. TDOT contracts the IVR operation to a vendor. The IVR accepts callers' requests and provides responses to specific traveler information needs. This is the customer interface component of the 511 phone system.
Tennessee 511 System	511 traveler information system central server.
Tennessee Bureau of Investigation	Responsible for issuing statewide America's Missing: Broadcast Emergency Response (AMBER) Alerts in Tennessee.
Tennessee Fusion Center	Joint center made up of local, state, and federal law enforcement officials for the timely receipt, analysis and dissemination of terrorism information and criminal activity relating to Tennessee.
Tennessee GoSmart Kiosks	Kiosks in rest areas that provide traveler information, including weather, road, and travel conditions.
THP CVO Enforcement	Tennessee Highway Patrol commercial vehicle inspection and enforcement.
THP Dispatch	Tennessee Highway Patrol dispatch center. There are several THP dispatch centers around the state of Tennessee.
THP Truck Weigh and Inspection Station	Commercial vehicle inspection station with the capability to weigh commercial vehicles and evaluate their credentials.
THP Vehicles	Tennessee Highway Patrol vehicles.
THP Weigh-in-Motion	Tennessee Highway Patrol facilities with the capability to weigh commercial vehicles while they are traveling at highway speeds.
TITAN Database	Tennessee Integrated Traffic Analysis Network database. The Tennessee Department of Safety crash record database maintained by THP for the collection of crash record information. TITAN interfaces with the TraCS (Traffic and Criminal Software) system.
Traveler	User of the transportation system.
Vehicle Operator	Operators of commercial vehicles.
WEMA EMS Vehicles	Wilson County Emergency Management Agency Emergency Medical Services
WEMA Fire Vehicles	Wilson County Emergency Management Agency fire vehicles
Williamson County EMA	Emergency management agency for Williamson County. Responsible for disaster planning for the County and operating the emergency operations center (EOC).
Williamson County Emergency Dispatch	Responsible for dispatch of Williamson County Sheriff.
Williamson County RWIS	Road weather information system sensors to monitor weather conditions at the roadway.
Williamson County Sheriff Vehicles	Williamson County Sheriff's Office vehicles.
Williamson County TOC	Traffic operations center for Williamson County. Responsible for the operation of the traffic signal system.
Williamson County Traffic Signals	Traffic signal system operated and maintained by Williamson County.
Wilson County EMA	Emergency management agency for Wilson County. Responsible for disaster planning for the County and operating the emergency operations center (EOC).
Wilson County EMA Dispatch	Emergency management agency for Wilson County. Responsible for dispatch of county EMS and Fire.
Wilson County PSAP	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the county and dispatching emergency responders.
Wilson County Sheriff Vehicles	Wilson County Sheriff's Office vehicles.
Wilson County TOC	Traffic operations center for Wilson County. Responsible for the operation of the traffic signal system.
Wilson County Traffic Signals	Traffic signal system operated and maintained by Wilson County.