Road Weather Management (46 unique benefit summaries found)
A modeling study compared the benefits of using road weather information systems (RWIS) with the costs of reacting to prevailing weather conditions and found that RWIS technologies could reduce snow and ice control costs by as much as 10 percent.(1991)
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)
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)
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 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)
Evaluation data show that anti-icing and pre-wetting strategies can reduce sanding applications by 20 to 30 percent, decrease chemical applications by 10 percent, and reduce chloride and sediment runoff in local waterways.(19 August 2005.)
Evaluation data show that anti-icing programs can cut snow and ice control costs in half.(19 August 2005.)
In North Carolina, a wet pavement detection system on I-85 yielded a 39 percent reduction in the annual crash rate under wet conditions.(August 2004)
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)
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)
An automated wet pavement warning system installed on a freeway ramp in Ft. Lauderdale reduced vehicle speeds by 10.2 mi/hr during heavy rain and by 4.6 mi/hr during periods of light rain.
(6-10 August 2000)
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 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)
The Wisconsin DOT used an ice detection system and a snow forecasting model to aid in the dispatch of snow plows and deicers saving 4 hours per person for each significant storm (a value of around $144,000/storm), and approximately $75,000 in salt.(March/April 1990)
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 North Carolina, a wet pavement detection system on I-85 yielded a 39 percent reduction in the annual crash rate under wet conditions.(August 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)
A study of travelers on Snoqualmie Pass, WA found that DMS can decrease mean driving speeds and reduce accident severity.(December 2001)
Idaho Storm Warning System Operational Test - Final Report(14 March 2001)
In Tennessee, a fog detection and warning system implemented in 1994 significantly improved safety as no fog-related accidents have occurred since implementation.(October 2000)
An automated wet pavement warning system installed on a freeway ramp in Ft. Lauderdale reduced vehicle speeds by 10.2 mi/hr during heavy rain and by 4.6 mi/hr during periods of light rain.
(6-10 August 2000)
In Finland, road weather information posted on dynamic message signs was well perceived and remembered by surveyed drivers; 90 percent deemed variable speed limit signs useful.(December 1995)
In Finland, a road weather information system with variable speed limit signs was projected to decrease the average vehicle speed by 0.4 to 1.4 percent and reduce the annual crash rate by 8 to 25 percent.(December 1995)
In Finland, a road weather information system with variable speed limit signs was projected to yield a benefit-to-cost ratio ranging from 0.6:1 to 1.6:1 depending on the influence of the system on vehicle speeds and crash rate.(December 1995)
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 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 Tennessee, a fog detection and warning system implemented in 1994 significantly improved safety as no fog-related accidents have occurred since implementation.(October 2000)
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)
An analysis of the I-90 ramp closure system in Minnesota found benefit-cost ratios ranging from 0.13:1 to 3:1 with varying estimates of crash and delay reductions.(October 1999)
During a 1998 snow storm, Mn/DOT reduced roadway clearance costs by 18 percent on I-90 by activating a freeway gate closure system to limit vehicle interference and reduce snow compaction problems that increase work for plows.(October 1999)
In Tennessee, a fog detection and warning system implemented in 1994 significantly improved safety as no fog-related accidents have occurred since implementation.(October 2000)
Weather-related traffic signal timing along a Minneapolis/St. Paul corridor reduced vehicle delay nearly eight percent and vehicle stops by over five percent.(1999)
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 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)
A study of travelers on Snoqualmie Pass, WA found that DMS can decrease mean driving speeds and reduce accident severity.(December 2001)
In Tennessee, a fog detection and warning system implemented in 1994 significantly improved safety as no fog-related accidents have occurred since implementation.(October 2000)
In Finland, road weather information posted on dynamic message signs was well perceived and remembered by surveyed drivers; 90 percent deemed variable speed limit signs useful.(December 1995)
In Finland, a road weather information system with variable speed limit signs was projected to decrease the average vehicle speed by 0.4 to 1.4 percent and reduce the annual crash rate by 8 to 25 percent.(December 1995)
In Finland, a road weather information system with variable speed limit signs was projected to yield a benefit-to-cost ratio ranging from 0.6:1 to 1.6:1 depending on the influence of the system on vehicle speeds and crash rate.(December 1995)
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 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)
Winter maintenance personnel indicated that road weather information systems improved the efficiency of response strategies, reduced maintenance costs (staff, equipment and materials), assisted with crew scheduling, and improved data sharing.
(March 2001)
Winter maintenance personnel indicated that road weather information systems and anti-icing techniques reduce the frequency of crashes and insurance claims.
(March 2001)
Winter maintenance personnel indicated that anti-icing techniques limit snow/ice bonding on roadways, improve plow efficiency, reduce the time required to clear snow/ice from roadways, reduce maintenance costs (overtime pay and materials), and reduce the need for abrasive cleanup activities.(March 2001)
Winter maintenance personnel indicated that road weather information systems reduced travel times, and anti-icing techniques decreased the need for road closures.(March 2001)
Winter maintenance personnel indicated that road weather information systems decrease salt usage, and anti-icing techniques limit damage to roadside vegetation, groundwater, and air quality (where abrasives are applied).
(March 2001)
Automatic anti-icing systems on bridges reduced crashes by 25 to 100 percent and benefit-to-cost ratios ranged from 1.8:1 to 3.4:1.(August 2003)
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)
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 Denver, Colorado, anti-icing on interstate freeways reduced snow and ice related crashes by 14 percent.(19 August 2005.)
Evaluation data show that anti-icing and pre-wetting strategies can reduce sanding applications by 20 to 30 percent, decrease chemical applications by 10 percent, and reduce chloride and sediment runoff in local waterways.(19 August 2005.)
Evaluation data show that anti-icing programs can cut snow and ice control costs in half.(19 August 2005.)
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)
A Kansas DOT survey of State and local transportation agencies found that AVL applications for highway maintenance can have benefit-to-cost ratios ranging from 2.6:1 to 24:1 or higher.(January 2004)
Implementation of an anti-icing program in northern Idaho reduced winter maintenance labor hours by 62 percent and decreased abrasives usage by 83 percent.(20 March 2001)
An anti-icing program implemented by the Idaho Transportation Department resulted in a 83 percent decline in winter crash frequency.(20 March 2001)
Developers claim that the equipment and operating cost for winter maintenance has been reduced by $11million to $14 million, due to the Indiana state DOT implementation of the Computer Aided System for Planning Efficient Routes (CASPER) system. (October 1997)
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 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)
The Wisconsin DOT used an ice detection system and a snow forecasting model to aid in the dispatch of snow plows and deicers saving 4 hours per person for each significant storm (a value of around $144,000/storm), and approximately $75,000 in salt.(March/April 1990)
