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Road Weather Management > Information Dissemination > Highway Advisory Radio


A variety of roadside technologies, such as dynamic messages signs and highway advisory radio, can be used to provide travelers with weather-related travel information. Weather specific internet sites and phone information lines may also be implemented. ITS operators may also send information to in-vehicle devices capable of displaying traveler information. Coordination with regional or multimodal traveler information efforts like 511, as well as arterial, freeway and incident management programs, can increase the availability of information on weather conditions along roadways.


Prepare in advance for severe weather by staffing enough snow plow operators and ensuring that public information systems will be updated with current weather and road conditions.(March 27, 2007 )

Adopt best practices for integrating emergency information into Transportation Management Center (TMC) operations to improve performance and increase public mobility, safety and security.(2/28/2006)

Invest in research and development for emergency integration.(2/28/2006)

Extend the application of emergency integration best practices to further improve emergency operations.(2/28/2006)

Integrate weather information into Transportation Management Center (TMC) operations to enhance the ability of operators to manage traffic in a more responsive and effective way during weather events.(2/28/2006)

Treat maintenance staff as customers and beneficiaries of ATIS information.(5/1/2005)

Treat system operators as the client and consider their perspectives during ATIS project development.(5/1/2005)

Consider how implementing an ATIS system will impact staffing and training requirements.(5/1/2005)

Consider that ATIS deployment in rural and/or remote areas presents special challenges.(5/1/2005)

Provide traveler information in rural areas to allow for good travel decisions in inclement weather and construction season.(November 2001)

Weather Information Integration into Transportation Management Center estimated at $314,500, with $49,500 in annual maintenance costs. (January 2011)

In Wenatchee, Washington, the construction of a Transportation Management Center (TMC) and the installation of the associated ITS field equipment cost $460,000.(June 2009)

The Pennsylvania (PA) Turnpike Commission expanded its statewide advanced traveler information system (ATIS) to better inform motorists of traffic, weather, and emergency conditions along the PA Turnpike. The overall project cost was $8.2 million.(April 2006)

TMC central hardware costs can exceed $200,000 if regional communications and system integration are required.(5 August 2004)

Detailed costs of road weather information systems deployed at several sites north of Spokane, WA.(8 January 2004)

The highway advisory radio (HAR) system deployed at Blewett/Stevens pass in Washington State included a portable HAR unit ($30,000), and two fixed HAR stations ($15,000 each).(July 2001)

Highway Advisory Radio - Capital cost/unit - $26000(8 January 2004)

Highway Advisory Radio - Capital cost/unit - $57500 - O&M cost/unit - $1200 - Lifetime - 10 years(8/28/2002)

Highway Advisory Radio Sign - Capital cost/unit - $4000 - O&M cost/unit - $250 - Lifetime - 7 years(8/28/2002)

Highway Advisory Radio - Capital cost/unit - $51606 - O&M cost/unit - $5000 - Lifetime - 10 years(6/29/2001)

Highway Advisory Radio - Capital cost/unit - $25000 - O&M cost/unit - $150 - Lifetime - 10 years(6/12/2001)

Highway Advisory Radio Sign - Capital cost/unit - $5000 - O&M cost/unit - $250 - Lifetime - 10 years(6/12/2001)

Highway Advisory Radio - Capital cost/unit - $30000 - O&M cost/unit - $700 - Lifetime - 20 years(5/29/2001)

Roadside Probe Beacon - Capital cost/unit - $6000 - O&M cost/unit - $600 - Lifetime - 5 years(5/29/2001)