- Auto Incident Recording System (AIRS)
- A system of cameras, microphones, and recording media deployed to
listen for incidents: such as the sound of metal hitting against metal, squealing
brakes and tires, glass breaking, sirens, horns, and other unusually loud sounds,
and capture video just before, at the moment of, and just after the sound.
- Advanced Traveler Information Systems (ATIS)
- ATIS, a subset of ITS, delivers data directly to travelers, empowering them to
make better choices about alternate routes or modes of transportation. The TRIMARC
web site is an example of an ATIS.
- Advanced Traffic Management Systems (ATMS)
- ATMS employ a variety of relatively inexpensive detectors, cameras, and
communication systems to monitor traffic, optimize signal timings on major arterials,
and control the flow of traffic. Most of the information which is disseminated via
the TRIMARC web site comes from the TRIMARC ATMS.
- Closed Circuit Television (CCTV)
- A television system where cameras are connected to television monitors to
perform surveillance of a limited area such as a regional interstate highway system.
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- Changeable Message Sign (CMS) - (a.k.a. DMS and/or VMS)
- Traffic control devices capable of displaying one or more alternative messages,
changeable manually, by remote control, or by automatic control. TRIMARC message
signs are dynamic message signs. Variable message signs are matrix signs with
eight or more characters per line capable of displaying a very large variety of
messages. Variable and/or dynamic CMSs are typically used on freeway and
expressway mainlines. Both variable and/or dynamic CMSs can be fixed at a
location, portable, or truck-mounted. TRIMARC primarily uses fixed message signs
that are capable of displaying 2 frames, with 3 lines of up to 21 characters.
TRIMARC also has several smaller portable VMS's used for special events or long
term incidents.
- Dynamic Message Sign (DMS) - (a.k.a. CMS or VMS)
- See CMS above. A DMS sign contains a full-matrix screen and is capable of
displaying a very large variety of messages shown in full-color and full-motion.
Some Dynamic CMSs are also capable of displaying video images.
- Federal Highway
Administration (FHWA)
- The Federal Highway Administration (FHWA) is a part of the
U.S. Department of Transportation and is headquartered in Washington, D.C., with
field offices across the United States. The FHWA's Federal-Aid Highway Program
provides federal financial assistance for the TRIMARC program.
- Highway Advisory Radio (HAR)
- A traffic information broadcasting system. Drivers are alerted to tune their
car radios to a specific channel in order to receive transmitted information. The
TRIMARC system uses channel 1610 AM to broadcast information.
- Indiana Department of
Transportation (INDOT)
- INDOT is Indiana's State Department of Transportation. TRIMARC works
closely with INDOT to manage traffic in the Kentuckiana area. .
- Incident Management or Response Systems
- Incident Management or Response Systems provide traffic operators with the
tools to allow quick and efficient response to accidents, hazardous spills, and
other emergencies. Operators use these tools for the detection and identification
of a traffic incident, implementation of appropriate responsive actions and
handling of the traffic until normal traffic conditions have been restored.
- Intelligent Transportation Systems (ITS)
- ITS encompasses a broad range of modern computer and communications technologies.
When integrated into the transportation system infrastructure or in vehicles, these technologies
help monitor and manage traffic flow, reduce congestion, provide improved mobility,
safety, air quality, and productivity. TRIMARC is an example of ITS.
Subsets of Intelligent transportations systems include ATIS, ATMS, and Incident
Management or Response Systems.
- Interim Transportation Operations Center (ITOC)
- The current TRIMARC Transportation Operations Center was designed to be a
temporary residence for TRIMARC. However, plans to build a permanent operations center have not materialized so some creative use of existing space has been impletmented.
- Kentucky
Transportation Cabinet (KYTC)
- The State Transportation Department for the Commonwealth of Kentucky. A portion
of the funds to operate TRIMARC come from KYTC.
- Loop Detectors and Loop Controllers
- Loop detectors consist of embedded pavement detectors or loops of wire
embedded in the pavement of each roadway lane and on-ramps where metering is
deployed. These loops are located approximately every half mile and when vehicles
pass over the loop, a measurable current is induced and sent to a roadside loop
controller. The loop controller gathers the speed, occupancy, vehicle count
and classification data for each roadway lane and sends it to a local traffic
operations center via fiber optic cable or some type of leased line service. Some
controllers are capable of depicting the types of vehicles, also known as vehicle
classifications.
- Microwave Radar Vehicle Detector (MRVD) - (a.k.a. WBR or RTMS)
- An MRVD is a low-cost, general-purpose, all-weather traffic sensor which
detects presence and measures traffic parameters in multiple independent lanes.
The MRVD is a traffic detector providing volume, occupancy, speed and classification
information. Most of TRIMARC traffic sensors are MRVDs.
- Remote Traffic Microwave Sensor (RTMS) - (a.k.a. MRVD or WBR)
- See MRVD above.
-
Traffic Response and Incident Management Assisting the River Cities (TRIMARC)
- TRIMARC is an example of ITS. TRIMARC was designed to provide travelers with
information for the interstate highway system within the greater Louisville and Southern
Indiana urbanized area.
- Variable Message Sign (VMS) - (a.k.a. CMS or DMS)
- See CMS above.
- Vehicle Video Detection System (VVDS)
- Vehicle video tracking and detection systems provide full field of view tracking,
shadow filtering, and an ATMS-interface protocol for intersection control as well as
traffic surveillance.
- Wide Beam Radar (WBR) - (a.k.a. MRVD)
- See MRVD above.
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