ODOT Highway Advisory Radio (HAR)
Highway advisory radios (HAR), also called travelers information stations (TIS), are licensed low–power AM radio stations set up by local transportation departments to provide bulletins to motorists and other travelers regarding traffic and other delays. These stations are often near highways and airports. In the United States, only the government may have licenses for TIS/HAR stations and music is typically prohibited on the frequency.
ODOT plans to provide such HAR along its interstate highways in the Central Ohio region.
|Functional Object||Description||User Defined|
|Roadway Field Device Support||'Roadway Field Device Support' monitors the operational status of field devices and detects and reports fault conditions. Consolidated operational status (device status, configuration, and fault information) are reported for resolution and repair. A local interface is provided to field personnel for local monitoring and diagnostics, supporting field maintenance, upgrade, repair, and replacement of field devices.||False|
|Roadway Traffic Information Dissemination||'Roadway Traffic Information Dissemination' includes field elements that provide information to drivers, including dynamic message signs and highway advisory radios.||False|
|Roadway Work Zone Traffic Control||'Roadway Work Zone Traffic Control' controls traffic in areas of the roadway where maintenance and construction activities are underway, monitoring and controlling traffic using field equipment such as CCTV cameras, dynamic messages signs, and gates/barriers. Work zone speeds and delays are provided to the motorist prior to the work zones.||False|
|SDO||Document #||Title||User Defined|
|ITE||ITE ITS Cabinet||ITS Standard Specification for Roadside Cabinets||False|
|NEMA||NEMA TS 4||Hardware Standards for Dynamic Message Signs (DMS) with NTCIP Requirements||False|
|NEMA TS 5||Portable Traffic Signal Systems (PTSS) Standard Control Circuit and Pilot Devices||False|
|NEMA TS 8||Cyber and Physical Security for Intelligent Transportation Systems (ITS)||False|
(View Context Diagram)