Road Weather Management > Surveillance, Monitoring, & Prediction > Atmospheric Conditions
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 Finland, a benefit-cost analysis supported the deployment of weather information controlled variable speed limits on highly trafficked road segments.(25 March 2006)
In Oregon, approximately 90 percent of motorists surveyed indicated that they would slow down in response to messages displayed by an automated high wind warning system.(February 2006)
In Oregon, the benefit-to-cost ratios for two automated wind warning systems were 4.13:1 and 22.80:1.(February 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)
In Kamloops, British Columbia, anti-icing winter maintenance operations cost 58 percent less than traditional winter maintenance operations that involve granular salt.(2004)
In British Columbia, the City of Kamloops experienced a seven percent decrease in snow and ice-related crashes following the introduction of pre-wetting and anti-icing techniques.(2004)
In Salt Lake City, Utah the ADVISE fog warning system tested on a two-mile section of I-215 promoted more uniform traffic flow, reducing vehicle speed variability by 22 percent while speeds increased 11 percent.(June 2003)
In Tennessee, a low visibility warning system installed on I-75 dramatically reduced fog-related crashes.(May 2003)
Final Report of the FORETELL Consortium Operational Test: Weather Information for Surface Transportation(April 2003)
Idaho Storm Warning System Operational Test - Final Report(14 March 2001)
In Vantage, Washington an automated anti-icing system installed on I-90 had a benefit-to-cost ratio of 2.36:1, with benefits including fewer winter weather-related crashes and more efficient use of abrasives.(7-11 January 2001)
In Vantage, Washington, the deployment of an automated anti-icing system on I-90 was projected to eliminate up to 80 percent of snow and ice related crashes.(7-11 January 2001)
On the A16 Motorway in the Netherlands, an automatic fog warning system prompted drivers to slow down by 8 to 10 km/hr and drive at more uniform speeds; however, during extremely foggy conditions the system increased the average vehicle speed by 31 km/hr matching the recommended speed.(1995)
In Finland, a road weather information system was projected to yield a benefit-to-cost ratio of 5:1 by reducing annual vehicle costs, and improving motorist travel time and safety.
(1993)
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 London, an automatic fog detection system that used freeway dynamic message signs to warn drivers of fog reduced traffic speeds by an average of 1.8 mi/h.(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)
In Finland, the average implementation cost for a weather responsive roadside VSL system on a dual carriageway was estimated at 80,000€; average maintenance costs (including replacement costs) were estimated at 3,500 €/km/year. (25 March 2006)
In Oregon, automated wind warning systems cost approximately $90,000 each and annual O&M costs range between $3,000 and $3,500.(February 2006)
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)
Detailed costs of road weather information systems deployed at several sites north of Spokane, WA.(8 January 2004)
At a cost of approximately $3.7 million, Ohio DOT added 86 weather stations to its existing road weather information system.(1 December 2003)
Maryland State Highway Administration estimated fog warning system addition to existing environmental sensor stations near Big Savage Mountain, Maryland cost $75,000.(7 November 2003)
The total cost to purchase and implement a road weather information system in Abilene, Texas was $42,010.(January 1998)
Establish a centralized database for all winter maintenance-related weather information.(2/2/2006)
Maximize the value of an RWIS investment for maintenance staff through follow-on staff training and usage tracking.(2/2/2006)
Integrate various types of road weather information to promote utilization by the public.(2/2/2006)
