00745793

Component

http://onlinepubs.trb.org...onf/1996/cp16/cp16-016.pdf

Data from road weather information systems (RWISs) are used to plan winter maintenance activities. RWISs provide measurements of air and road surface temperature, air humidity, and precipitation. Models are available and in practical use in Sweden for both obtaining temperature information over stretches of road and forecasting road surface temperatures. The temperature information is calculated by using a local climatological model, which is run on a topoclimatological basis. Through a division of the road stretches into segments according to variation in topography, vegetation, construction material, and weather, different temperature patterns are calculated. The input for the model is temperature data from the field stations. The forecast model is based on a combination of statistics and energy balance calculations. The prognosis is calculated individually for each station so that local effects may be considered. The input to the model is given from the RWIS and a cloud forecast is also needed. A presentation of a winter index model, which can be used to calculate the need for maintenance activity in an area, is included.

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00745777

English

p. 121-124

1997

Transportation Research Board Conference Proceedings

Snow Removal and Ice Control Technology

0309062160

Digital/other

Figures (2) ; References (5)

Climatology; Forecasting; Information systems; Maintenance; Maintenance management; Mathematical models; Needs assessment; Snow and ice control; Surface temperature; Topography; Weather; Weather stations; Winter maintenance

Sweden

Highways; Maintenance and Preservation; Terminals and Facilities; I62: Winter Maintenance

TRIS, TRB

Feb 24 1998 12:00AM

• ACTIVE MICROWAVE REMOTE SENSING OF ROAD SURFACE CONDITIONS
• ANTI-ICING FIELD EVALUATION
• BENEFIT-COST COMPARISON OF SALT-ONLY VERSUS SALT-ABRASIVE MIXTURES USED IN WINTER HIGHWAY MAINTENANCE IN THE UNITED STATES
• COST-BENEFIT ANALYSIS OF SNOW-REMOVING CHANNELS IN AN URBAN AREA WITH HEAVY SNOWFALL
• EFFECTS OF STUDDED TIRE REGULATION ON ROAD ENVIRONMENTS AND TRAFFIC CONDITIONS IN HOKKAIDO
• FIELD TEST OF ROAD WEATHER INFORMATION SYSTEMS AND IMPROVEMENT OF WINTER ROAD MAINTENANCE IN HOKKAIDO
• FIELD TEST RESULTS OF INTELLIGENT DELINEATOR SYSTEM: INTELLIGENT TRANSPORT SYSTEM TECHNOLOGY RESEARCH AND DEVELOPMENT FOR WINTER TRAFFIC
• GUIDANCE FOR SUCCESSFUL ANTI-ICING OPERATIONS BASED ON U.S. EXPERIENCE
• INFLUENCE OF DEICING SALT ON VEGETATION, GROUNDWATER, AND SOIL ALONG TWO HIGHWAYS IN SWEDEN
• MODEL EXPERIMENT AND FIELD OBSERVATION OF A SNOW AVALANCHE DEFLECTOR
• PREDICTING SLIPPERINESS OF ROAD SURFACE IN WINTER WITH A NEURAL-KALMAN FILTER
• PRODUCTION OF LOW-COST ACETATE DEICERS FROM BIOMASS AND INDUSTRIAL WASTES
• REAL-TIME ROAD ICE PREDICTION AND ITS IMPROVEMENT IN ACCURACY THROUGH A SELF-LEARNING PROCESS
• SOCIOECONOMIC CALCULATIONS FOR WINTER TIRES
• TEST AND EVALUATION OF CALCIUM MAGNESIUM ACETATE-SODIUM CHLORIDE MIXTURES IN SWEDEN
• THEORETICAL BACKGROUND FOR USE OF A ROAD WEATHER INFORMATION SYSTEM
• VARIABLE SLIP FRICTION MEASUREMENT TECHNIQUES FOR SNOW AND ICE OPERATIONS
• WEATHER-RELATED TRAFFIC MANAGEMENT IN THE E18 FINNISH TEST AREA
• WINTER MAINTENANCE IN THE NETHERLANDS
• WINTER MAINTENANCE ON POROUS ASPHALT