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Road Weather Management > Information Dissemination > Internet/Wireless/Phone


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.


Alaska's NewGen 511 Traveler Information System cost $440k to develop and $140k annually to operate.(April 2010)

From the 511 Deployment Coalition case study: total costs (to design, implement, and operate for one year) averaged $2.5 million among six statewide systems and $1.8 million among three metropolitan systems.(November 2006)

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)

The cost to enhance the Arizona regional, multi-modal 511 traveler information system was just under $1.5 million.(30 September 2005)

A modeling study evaluated the potential deployment of full ITS capabilities in Cincinnati. The annualized life-cycle cost was estimated at $98.2 million.(May 2005)

Annual operating costs for the Greater Yellowstone Regional Traveler and Weather Information Systems (GYRTWIS) 511 system in Montana were about $196,000 per year for 2004 and 2005.(July 2004 and July 2006)

Sample costs collected by the 511 Deployment Coalition represent what deployers may encounter when planning or implementing a 511 system.(May 2004)

The cost to implement the pre-enhanced Arizona Department of Transportation 511 system was estimated at $355,000; operating costs for 2002 were estimated at $137,000.(17 February 2004)

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

First year funding for the Nebraska 511 traveler information system was $120,000; estimated annual operations and maintenance costs are $110,000.(December 2001/January 2002)

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In Salt Lake City, Utah, staff meteorologists stationed at a TOC provided detailed weather forecast data to winter maintenance personnel, reducing costs for snow and ice control activities, and yielding a benefit-to-cost ratio of 10:1.(February 2007)

In Idaho, 80 percent of motorist surveyed who used Road-Weather Integrated Data System information as a traveler information resource indicated that the information they received made them better prepared for adverse weather.(2/2/2006)

In a mountainous area of Spokane, Washington, 94 percent of travelers surveyed indicated that a road weather information website made them better prepared to travel; 56 percent agreed the information helped them avoid travel delays.(8 January 2004)

In a mountainous region of Spokane, Washington, about one-third of CVOs interviewed would consider changing routes based on the information provided on a road weather information website and highway advisory radio system; however, few could identify viable alternate routes. (8 January 2004)

Final Report of the FORETELL Consortium Operational Test: Weather Information for Surface Transportation(April 2003)

In Washington State, 80 percent of winter maintenance personnel that used the statewide road/weather information website said the National Weather Service warnings, satellite and radar images, and weather maps were useful.(March 2002)

A study of travelers on Snoqualmie Pass, WA found that DMS can decrease mean driving speeds and reduce accident severity.(December 2001)

In Finland, a road weather information system was estimated to save an average of 23 minutes per de-icing activity and improve traffic conditions.(1993)

In Finland, a road weather information system was estimated to improve response times for road treatments, decrease the duration of slippery road conditions by 10 to 30 minutes, and eliminate 3 to 17 percent of crashes.(1993)

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)

Investigate procurement alternatives of leasing, buying, or building equipment to minimize operations and maintenance costs.(12/30/2003)

Allocate adequate staff time for planning and management oversight to monitor progress and address issues.(12/30/2003)

Provide accurate and timely road condition and weather forecast information to rural travelers in cold weather regions.(12/30/2003)

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

Minimize problems in creating contractual arrangements for testing a new ITS technology by creating negotiating benchmarks, designing a partnership arrangement, and developing a separate procurement process for different technological components. (3/1/1999)

Carefully select a project manager to be responsible for deployment and testing of new ITS technology.(3/1/1999)

Anticipate challenges with the ITS technology being tested, including problems with software modification and adaptation of previously developed technology.(3/1/1999)