Memphis 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
AHTD Crittenden County Local TOC	Traffic operations workstation located at the weigh station in Crittenden County with shared access to TDOT CCTV cameras located in Arkansas.
AHTD District 1 TMC	Transportation management center for AHTD District 1. Responsible for the operation of the ITS equipment located in District 1.
AHTD District Maintenance	AHTD entity responsible for the oversight of maintenance activities in AHTD District 1.
AHTD Statewide TMC	Arkansas Statewide Traffic Management Center located in Little Rock.
All MS Municipal and County Emergency Dispatch Agencies	Group of emergency management agencies in Mississippi that includes the following: the City of Horn Lake 911 Dispatch, City of Olive Branch Emergency Communications Center, City of Southaven Police Department, DeSoto County E-911, and Municipal Emergency Dispatch.
All MS Municipal and County TOCs	Group of traffic management agencies in Mississippi that includes the following: City of Horn Lake TOC, City of Olive Branch TOC, City of Southaven (MDOT Northwest Regional TMC) and Municipal TOC.
All Shelby County Emergency Dispatch Agencies	Group of emergency management agencies in Shelby County that includes the following: the City of Memphis Police Department, City of Bartlett Police Department, Town of Collierville Police Department, City of Germantown Police Department, Shelby County Sheriff, and Municipal Emergency Dispatch.
All Shelby County TOCs	Group of traffic management agencies in Shelby County that includes the following: the City of Bartlett TOC, Town of Collierville TOC, City of Germantown TOC, City of Millington TOC, Shelby County TOC, and Municipal TOC.
All TN Municipal and County Emergency Dispatch Agencies	Group of emergency management agencies that includes the following: the City of Memphis Police Department, City of Bartlett Police Department, City of Collierville Police Department, City of Germantown Police Department, Fayette County Sheriff, Shelby County Sheriff, and Municipal Emergency Dispatch.
All TN Municipal and County Public Safety Vehicles	Public safety vehicles operated by municipal and county emergency management agencies.
All TN Municipal and County TOCs	Group of traffic management agencies that includes the following: the City of Bartlett TOC, City of Collierville TOC, City of Germantown TOC, City of Millington TOC, Shelby County TOC, and Municipal TOC.
Archive Data User	Those who request information from the data archive systems.
Arkansas 511 System	Statewide 511 traveler information system central server.
Arkansas DEM	The Arkansas Department of Emergency Management is responsible for emergency operations during a disaster or large scale incident.
Arkansas State Police	Statewide law enforcement agency with powers to enforce all criminal and traffic laws of the State of Arkansas.
Arkansas TSIS/IDrive Arkansas.com	Statewide roadway conditions databases for Arkansas.
City of Bartlett CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Bartlett DMS	Dynamic message signs for traffic information dissemination.
City of Bartlett 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. Also includes sensors to detect train lengths and speeds to estimate the anticipated duration of closures.
City of Bartlett Fire/EMS Vehicles	City of Bartlett Fire Department and Emergency Medical Services vehicles.
City of Bartlett Notify Me	City of Bartlett email or phone service used to alert subscribers of current or pending issues.
City of Bartlett Police Department	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders. Non-emergency functions include the collection of crash data and enforcement of speed limits and commercial vehicles.
City of Bartlett Police Vehicles	City of Bartlett Police Department vehicles.
City of Bartlett Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Bartlett Speed Monitoring Equipment	Field equipment used for monitoring roadway speeds.
City of Bartlett TOC	Traffic operations center for the City of Bartlett. 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.
City of Bartlett Traffic Signals	Traffic signal system operated by the City of Bartlett.
City of Bartlett Website	Website for the City of Bartlett. 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 Germantown CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Germantown DMS	Dynamic message signs for traffic information dissemination.
City of Germantown eNotices	City of Germantown email or phone service used to notify subscribers of requested news including public safety or traffic alerts.
City of Germantown 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. Also includes sensors to detect train lengths and speeds to estimate the anticipated duration of closures.
City of Germantown Fire/EMS Vehicles	City of Germantown Fire Department and Emergency Medical Services vehicles.
City of Germantown Police Department	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders. Non-emergency functions include the collection of crash data and enforcement of speed limits and commercial vehicles.
City of Germantown Police Vehicles	City of Germantown Police Department vehicles.
City of Germantown Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Germantown Speed Monitoring Equipment	Field equipment used for monitoring roadway speeds.
City of Germantown TOC	Traffic operations center for the City of Germantown. 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.
City of Germantown Traffic Signals	Traffic signal system operated by the City of Germantown.
City of Germantown Website	Website for the City of Germantown. 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 Horn Lake 911 Dispatch	Resopnsible for emergency call-taking and dispatch for the City of Horn Lake.
City of Horn Lake CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Horn Lake Field Sensors	Roadway equipment used to detect vehicle volumes and/or speeds. Includes equipment such as video image vehicle detection systems, remote traffic microwave sensors, or traditional loops. Also includes sensors to detect train lengths and speeds to estimate the anticipated duration of closures.
City of Horn Lake Fire/EMS Vehicles	City of Horn Lake Fire Department and Emergency Medical Services vehicles.
City of Horn Lake Police Vehicles	City of Horn Lake Police Department vehicles.
City of Horn Lake Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Horn Lake TOC	Traffic operations center for the City of Horn Lake. Responsible for the operation of the traffic signal system.
City of Horn Lake Traffic Signals	Traffic signal system operated by the City of Horn Lake.
City of Horn Lake Website	Website for the City of Horn Lake. 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 Memphis Arterial Emergency Response Dispatch	Dispatch for roadway service patrol vehicles operating on arterials in the City of Memphis.
City of Memphis Arterial Emergency Response Vehicles	Roadway service patrol vehicles that operate off the interstate system in the City of Memphis to aid in incident clearance and incident scene traffic management.
City of Memphis CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Memphis Changeable Speed Limit Signs	CIty of Memphis roadway equipment used to lower speed limits on the roadway
City of Memphis City Engineers Office	Office responsible for administration of maintenance and construction projects within the City as well as communicating work zone information to the public and other affected agencies.
City of Memphis DMS	Dynamic message signs for traffic information dissemination.
City of Memphis Engineering Division	Division responsible for design, survey, and inspection during construction of streets, bridges, storm drains, sanitary sewers, traffic control devices and City facilities. The division also provides installation and maintenance of signs and markings along streets and maintenance of traffic lights for the City and County municipalities.
City of Memphis 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. Also includes sensors to detect train lengths and speeds to estimate the anticipated duration of closures.
City of Memphis Fire/EMS Vehicles	City of Memphis Fire Department and Emergency Medical Services vehicles.
City of Memphis Parking Management System	Parking management system to provide real-time parking availability information to drivers in coordination with private parking facilities and transit and traffic management.
City of Memphis Pedestrian Hybrid Beacons	A beacon that grants right of way to crossing pedestrians at a marked crosswalk.
City of Memphis Police Department	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders. Non-emergency functions include the collection of crash data and enforcement of speed limits and commercial vehicles.
City of Memphis Police Portable DMS	Portable dynamic message signs owned and operated by the City of Memphis Police for the distribution of work zone information. In the future the Public Works and Engineering Divisions would like to be able to place messages on the signs as well.
City of Memphis Police Vehicles	City of Memphis Police Department vehicles.
City of Memphis Public Works Division	Division responsible for the operation and maintenance of the City's infrastructure which includes streets, sanitary sewers, storm drains, bridges and flood control.
City of Memphis Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Memphis RWIS Sensors	Road weather information system sensors to monitor weather conditions at the roadway.
City of Memphis Service Vehicles	City of Memphis vehicles used by the Public Works Division and Enginerring Division to support maintenance, contruction, and operation of the City's transportation infrastructure.
City of Memphis Speed Monitoring Equipment	Field equipment used for monitoring roadway speeds.
City of Memphis TOC	Traffic operations center for the City of Memphis. 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.
City of Memphis Traffic Signals	Traffic signal system operated by the City of Memphis.
City of Memphis Website	Website for the City of Memphis. 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 Millington CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Millington DMS	Dynamic message signs for traffic information dissemination.
City of Millington 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. Also includes sensors to detect train lengths and speeds to estimate the anticipated duration of closures.
City of Millington Fire Vehicles	City of Millington Fire Department vehicles.
City of Millington Notify Me	City of Millington email or phone service used to notify subscribers of requested news including emergency alerts, and public works updates.
City of Millington Police Department	911 Public Safety Answering Point responsible for answering all 911 calls made within the City and dispatching emergency responders. Non-emergency functions include the collection of crash data and enforcement of speed limits and commercial vehicles.
City of Millington Police Vehicles	City of Millington Police Department vehicles.
City of Millington Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Millington Speed Monitoring Equipment	Field equipment used for monitoring roadway speeds.
City of Millington TOC	Traffic operations center for the City of Millington. 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.
City of Millington Traffic Signals	Traffic signal system operated by the City of Millington.
City of Millington Website	Website for the City of Millington. 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 Olive Branch CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
City of Olive Branch CodeRED	City of Olive Branch email or phone service used to notify subscribers of requested alerts concerning emergency situations.
City of Olive Branch DMS	Dynamic message signs for traffic information dissemination.
City of Olive Branch Emergency Communications Center	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders. Non-emergency functions include the collection of crash data and enforcement of speed limits and commercial vehicles.
City of Olive Branch 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 Olive Branch Fire/EMS Vehicles	City of Olive Branch Fire Department and Emergency Medical Services vehicles.
City of Olive Branch Police Vehicles	City of Olive Branch Police Department vehicles.
City of Olive Branch Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Olive Branch TOC	Traffic operations center for the City of Olive Branch. 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.
City of Olive Branch Traffic Signals	Traffic signal system operated by the City of Olive Branch.
City of Olive Branch Website	Website for the City of Olive Branch. 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 Southaven Fire/EMS Vehicles	City of Southaven Fire Department and Emergency Medical Services vehicles.
City of Southaven Notify Me	City of Southaven email or phone service used to notify subscribers of requested news including emergency alerts, and public works updates.
City of Southaven Police Department	Police Department for the City of Southaven. Resopnsible for emergency call-taking and dispatch for the City of Southaven.
City of Southaven Police Vehicles	City of Southaven Police Department Vehicles.
City of Southaven Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
City of Southaven Traffic Signals	Traffic signal system operated by the City of Southaven.
City of West Memphis Police Department	Police Department for the City of West Memphis.
City of West Memphis TOC	Traffic operations center for the City of West Memphis. Responsible for the operation of the traffic signal system and any other ITS infrastructure deployed by the City.
Commercial Vehicles	Privately owned commercial vehicles traveling within the Region.
DARTS Data Archive	Delta Area Rural Transit System transit ridership statistics used by the National Transit Database, FTA, and MDOT.
DARTS Demand Response Vehicles	Delta Area Rural Transit System demand response vehicle fleet.
DARTS Dispatch Center	Delta Area Rural Transit System dispatch center responsible for the tracking, scheduling and dispatching of DARTS demand response services.
DARTS Website	Delta Area Rural Transit System 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.
Delta HRA Data Archive	Delta Human Resource Agency transit ridership statistics used by the National Transit Database, FTA, and TDOT Office of Public Transportation.
Delta HRA Demand Response Vehicles	Delta Human Resource Agency demand response vehicle fleet.
Delta HRA Transportation Dispatch Center	Delta Human Resource Agency dispatch center responsible for the tracking, scheduling and dispatching of Delta HRA demand response services.
Delta HRA Transportation Website	Delta 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.
DeSoto County E-911	Primary 911 Public Safety Answering Point (PSAP) responsible for answering 911 calls and dispatching emergency responders within unincorporated areas of the County.
DeSoto County EMA	Emergency Management Agency for DeSoto County. Responsible for disaster planning for the County and operating the emergency operations center (EOC).
DeSoto County EMS Dispatch	Emergency Medical Services dispatch for DeSoto County.
DeSoto County EMS Vehicles	DeSoto County Emergency Medical Services vehicles.
DeSoto County Sheriff Vehicles	DeSoto County Sheriff's Office vehicles.
Electronic Fare Payment Card	Memphis Area Transit Authority medium for collection of transit fares electronically.
Fayette County EMA	Emergency Management Agency for Fayette County. Responsible for disaster planning for the County and operating the emergency operations center (EOC).
Fayette County EMS Dispatch	Emergency Medical Services dispatch for Fayette County.
Fayette County EMS Vehicles	Fayette County Emergency Medical Services vehicles.
Fayette County Sheriff	Primary 911 Public Safety Answering Point (PSAP) responsible for answering most 911 calls made within the County and dispatching emergency responders. Non-emergency functions include the collection of crash data and enforcement of speed limits and commercial vehicles.
Fayette County Sheriff Vehicles	Fayette County Sheriff's Office vehicles.
Financial Service Provider	Service provider that handles exchange of money for transit electronic payment collection.
Greater Memphis Regional Express Bus Dispatch Center	Dispatch center for a future express bus system between Mississippi and Tennessee that is currently being evaluated by MDOT.
Greater Memphis Regional Express Bus System Website	Website for potential regional express bus service between Mississippi and Tennessee.
Local Print and Broadcast Media	Local media outlets including television stations, newspapers, radio stations and their associated websites.
MATA Bus Arrival Status Boards	Memphis Area Transit Authority real-time next bus arrival information boards at transit transfer centers and select bus stops.
MATA Data Archive	Memphis Area Transit Authority transit ridership statistics used by the National Transit Database, FTA, and TDOT Office of Public Transportation.
MATA Dispatch Center	Memphis Area Transit Authority central dispatch for fixed route and paratransit operations.
MATA Fixed-Route Vehicles	Memphis Area Transit Authority fixed-route vehicles. Includes neighborhood routes and any other fixed route service.
MATA Mobile App	Mobile phone application that allows users to view transit service information, real-time bus location, and a create transit trip plan.
MATA Paratransit Vehicles	Memphis Area Transit Authority paratransit vehicles known as MATAplus.
MATA Ticket Vending Machines	Memphis Area Transit Authority ticket vending machines used for the purchase and recharging of electronic fare payment cards.
MATA Transit Facility CCTV Surveillance	Memphis Area Transit Authority closed circuit television camera surveillance at transit transfer centers or other transit facilities.
MATA Trolleys	Memphis Area Transit Authority trolley rail vehicles.
MATA Website	Memphis Area Transit Authority website. Includes information on MATA services, provides real-time information about trolley and fixed-route services, and a routing application to assist travelers in developing a customized transit trip plan.
MDOT CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
MDOT Data Archive	Archive of transportation data used in planning.
MDOT District 2 Engineers Office	District 2 Engineer's Office is responsible for administration of maintenance and construction projects within the District as well as communicating work zone information to the public through the Public Information Office.
MDOT District 2 Maintenance	Office that handles most of the routine roadway maintenance and responds to incidents when services are requested by local emergency management.
MDOT DMS	Dynamic message signs for traffic information dissemination.
MDOT Emergency Services Coordinator	Coordinator responsible for managing the MDOT response in a large scale incident or disaster in which the Mississippi Emergency Management Agency activates the state emergency operations center.
MDOT 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.
MDOT HAR	Highway advisory radio for traffic information dissemination.
MDOT Maintenance Vehicles	MDOT vehicles used in maintenance operations.
MDOT Northwest Regional TMC	MDOT traffic management center for Northwest Mississippi, located in Southaven. Responsible for the operation of traffic signals and other ITS devices in the area. The City of Southaven is co-located with MDOT at the TMC.
MDOT Office of Law Enforcement CVO Enforcement	Mississippi Department of Transportation commercial vehicle operations inspection and enforcement.
MDOT Office of Law Enforcement Truck Weigh and Inspection Stations	Commercial vehicle inspection station with the capability to weigh commercial vehicles and evaluate their credentials.
MDOT Office of Law Enforcement Weigh-in-Motion	MDOT facilities with the capability to weigh commercial vehicles while they are traveling at highway speeds.
MDOT Portable DMS	Portable dynamic message signs for the distribution of traffic and roadway condition information.
MDOT Public Information Office	Office responsible for the dissemination of traffic information to the media and the public.
MDOT Roadway Service Patrol Dispatch	Roadway service patrol dispatch.
MDOT Roadway Service Patrol Vehicles	Roadway Service patrol vehicles that operate primarily along controlled access highways and arterials in northern Mississippi.
MDOT RWIS Sensors	Road weather information system sensors to monitor weather conditions at the roadway.
MDOT 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).
MDOT Traffic Signals	Traffic signal system operated by the Mississippi DOT.
MDOTtraffic App	Mobile phone application that provides real-time traffic alert information and streaming video from traffic cameras.
MDOTtraffic Website	Website providing road network conditions including incident and construction information and camera views.
Memphis and Shelby County Health Department Emissions Sensors	Air quality sensors that monitor ozone and particulate matter levels.
Memphis and Shelby County Health Department Pollution Control	Responsible for administering local air pollution control laws and monitoring air quality in Shelby County.
Memphis MPO Data Archive	Archive of regional transportation data used in planning.
Memphis MPO Website	Website for the Memphis Urban Area Metropolitan Planning Organization.
MHP Dispatch	Mississippi Highway Patrol dispatch center. There are several MHP dispatch centers around the state of Mississippi.
MHP Vehicles	Mississippi Highway Patrol vehicles.
Mississippi 511 IVR	Mississippi 511 Interactive Voice Response. MDOT 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.
Mississippi 511 System	511 traveler information system central server.
Mississippi EMA	The Mississippi Emergency Management Agency manages emergency operations during a disaster or large scale incident.
Mississippi Statewide TMC	Mississippi Statewide Traffic Management Center in Jackson, MS.
Municipal Arterial Emergency Response Dispatch	Dispatch for roadway service patrol vehicles operating on arterials in the municipality.
Municipal Arterial Emergency Response Vehicles	Roadway service patrol vehicles that operate off the interstate system within the municipality to aid in incident clearance and incident scene traffic management.
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 municipal public safety agencies.
Municipal Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
Municipal TOC	Municipal traffic operations center. 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 municipality.
Municipal Traffic Signals	Municipal traffic signal systems within the Memphis Region.
Municipal/County Engineers Office	Municipal/County Engineer's office is responsible for administration of maintenance and construction projects within the municipality 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	Municipal/County vehicles used in maintenance operations.
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 Sensors	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.
National Weather Service	Provides official US weather, marine, fire, and aviation forecasts, warnings, meteorological products, climate forecasts, and information about meteorology.
Other Maintenance and Construction Management Agencies	Additional maintenance and construction operations agencies with which information is shared for coordination in an emergency situation.
Other MDOT District Construction and Maintenance Offices	Other MDOT district construction and maintenance offices besides those in District 2.
Other Municipal/County Maintenance	Maintenance groups in adjacent municipalities or counties for coordination of maintenance activities.
Other TDOT Region Construction and Maintenance Offices	Other TDOT regional construction and maintenance offices besides those in Region 4.
Other Traffic Management Agencies	Additional traffic management agencies with which information is shared for coordination in an emergency situation.
Pedestrians	Individuals afoot or using a motorized or non-motorized wheelchair.
Private Contract EMS Vehicles	Emergency Medical Services vehicles operating within Shelby County under contract with the Shelby County Fire Department.
Private Fleet Management Systems	Fleet and freight management for private carriers.
Private Parking Facilities	Privately owned public parking facilities that typically charge a fee for parking.
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 Transit Information Provider	Private company that repackages transit information for subscribers.
Private Transportation Providers	Private providers of transportation services in the Region. This includes taxis, Greyhound or other inter-city bus providers, Amtrak and the New Freedoms Program.
Private Travelers Personal Computing Devices	Computing devices that travelers use to access public information.
Public/Private Vehicles	Vehicles that traverse a specific region.
Rail Freight	Rail cars traveling within the Region.
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.
Regional Express Bus Vehicles	Express bus vehicles that may be part of a future express bus system between Mississippi and Tennessee that is currently being evaluated by MDOT.
Shelby County Fire Department	Responsible for dispatch of private contract EMS vehicles operating on behalf of the Fire Department within Shelby County.
Shelby County Fire Vehicles	Shelby County Fire Department vehicles.
Shelby County Office of Preparedness	Emergency Management Agency for the City of Memphis and Shelby County. Responsible for disaster planning for the County and operating the emergency operations center (EOC).
Shelby County Sheriff	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the County outside the Cities of Memphis, Bartlett, Collierville and Germantown and dispatching emergency responders. Non-emergency functions include the collection of crash data and enforcement of speed limits and commercial vehicles.
Shelby County Sheriff Vehicles	Shelby County Sheriff's Office vehicles.
Shelby County TOC	Traffic operations center for Shelby County. Responsible for the operation of the traffic signal system.
Shelby County Traffic Signals	Traffic signal system operated by Shelby 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.
Southwest HRA Transportation Dispatch Center	Southwest Human Resource Agency dispatch center responsible for the tracking, scheduling and dispatching of Southwest HRA demand response services.
TDOT Automated Roadway Treatment Equipment	Equipment used for the automated application on anti-icing chemicals at locations prone to freezing.
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 primarily on controlled access highways in Shelby County and are dispatched elsewhere in the Region for large incidents.
TDOT Infrastructure Monitoring Equipment	Surveillance equipment deployed on and near the Mississippi River bridges to monitor the security of the bridges.
TDOT Infrastructure Monitoring Sensors	Sensors on bridge structures that are monitoring seismic activity. The data is transmitted to the University of Memphis Center for Earthquake Research and Information from the TDOT Region 4 TMC.
TDOT Lane Control DMS	Dynamic message sign with the ability to display full-color traffic information messages and dynamic lane management.
TDOT Long Range Planning Division Archive	Data archive for the Long Range Division. The Division is responsible for traffic data collection and analysis.
TDOT Maintenance Headquarters	TDOT maintenance headquarters.
TDOT Maintenance Vehicles	TDOT vehicles used in maintenance operations.
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 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	TDOT Region 4 is responsible for the administration and operation of the state highway system in 21 counties in west Tennessee.
TDOT Region 4 Backup TMC - Jackson	Backup TMC for TDOT Region 4 located in Jackson at the Region 4 offices, and is connected to the TMC in Memphis via a wireless link.
TDOT Region 4 Construction Office	Office responsible for oversight of construction projects in Region 4.
TDOT Region 4 Engineers Office	Office 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 4 HELP Dispatch	Roadway service patrol dispatch. Currently operate primarily on controlled access highways in Shelby County and are dispatched elsewhere in the Region for large incidents.
TDOT Region 4 Maintenance	Region 4 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 4 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 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 SmartWay Mobile App	Mobile phone application that allows users to view traffic images, receive incident information, and monitor traffic speeds.
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 SWIFT.
TDOT Statewide Information for Travelers (SWIFT)	SWIFT 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).SWIFT feeds the Statewide 511 system and SmartWay website.
TDOT Toll Plazas	Toll plazas used for electronic toll collection on potential future toll roads.
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 EMA	Tennessee Emergency Management Agency responsible for managing emergency operations during a disaster or large scale incident.
THP Dispatch	Tennessee Highway Patrol dispatch center. There are several THP dispatch centers around the state of Tennessee.
THP Vehicles	Tennessee Highway Patrol vehicles.
TITAN Database	The Tennessee Integrated Traffic Analysis Network is 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.
Town of Collierville Alert Collierville	Town of Collierville email or phone service used to notify subscribers of emergencies or disasters.
Town of Collierville CCTV Cameras	Closed circuit television cameras for traffic surveillance and incident management.
Town of Collierville DMS	Dynamic message signs for traffic information dissemination.
Town of Collierville 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. Also includes sensors to detect train lengths and speeds to estimate the anticipated duration of closures.
Town of Collierville Fire Vehicles	City of Collierville Fire Department vehicles.
Town of Collierville Police Department	911 Public Safety Answering Point (PSAP) responsible for answering all 911 calls made within the City and dispatching emergency responders. Non-emergency functions include the collection of crash data and enforcement of speed limits and commercial vehicles.
Town of Collierville Police Vehicles	City of Collierville Police Department vehicles.
Town of Collierville Rail Notification System	Roadway equipment used to alert motorists that a crossing is currently blocked by a train.
Town of Collierville Speed Monitoring Equipment	Field equipment used for monitoring roadway speeds.
Town of Collierville TOC	Traffic operations center for the City of Collierville. 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.
Town of Collierville Traffic Signals	Traffic signal system operated by the City of Collierville.
Town of Collierville Website	Website for the City of Collierville. 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.
Traveler	User of the transportation system.
US Coast Guard	United States Coast Guard has jurisdiction on navigable waterways, such as the Mississippi River.
Vehicle Operator
West Memphis MPO Data Archive	Archive of regional transportation data used in planning.