00728377

Component

https://doi.org/10.3141/1533-05

http://scholar.google.com...berg&publication_year=1996

An experiment was conducted in the road district of Kuopio in the winters of 1992-1993 and 1993-1994 in which the use of salt in winter maintenance on rural main roads was reduced to 1 to 2 T/road kilometer from the approximately 10 T of salt that typically had been used per road kilometer in similar conditions in recent years. On the experimental roads, salting was replaced by sanding. The cost of winter maintenance on the experimental roads increased by 20% on average, and the increase was higher on roads with higher traffic volumes. Slippery conditions due to ice and snow on the road surface were twice as frequent (30 to 40% of the time) on the experimental roads as on the control roads in the neighboring road district. There were 27 injury accidents on the experimental roads in the first winter and 25 in the second. This was about the same as the average of the five previous winters. Because the accident trend on other roads in the same time was decreasing, it was concluded that the experiment increased the number of injury accidents by approximately 20% on most experimental road sections. Reduced salting decreased the sodium and chloride concentrations in the needles of roadside pine trees. There were also indications of decreased sodium and chloride concentrations in groundwater. Three quarters of the population in the area was pleased with the experiment.

This paper appears in Transportation Research Record No. 1533, Maintenance Management and Winter Operations.

English

p. 32-37

1996

Transportation Research Record

0309059054

Figures (8) ; References (10) ; Tables (1)

Concentration (Chemistry); Costs; Crashes; Experiments; Groundwater; Icy roads; Injuries; Public opinion; Rural highways; Sanding; Sodium; Sodium chloride; Trees; Winter maintenance

Increase; Reduction (Decrease)

Finland

Finland

Finance; Highways; Maintenance and Preservation; Safety and Human Factors; Society; I62: Winter Maintenance

TRIS, TRB

Nov 5 1996 12:00AM

• APPLICATION OF NEURAL NETWORK TECHNOLOGY TO HIGHWAY MAINTENANCE MANAGEMENT
• DEICING CHEMICALS AS SOURCE OF CONSTITUENTS OF HIGHWAY RUNOFF
• ESTIMATION OF EFFECTS OF REDUCED SALTING AND DECREASED USE OF STUDDED TIRES ON ROAD ACCIDENTS IN WINTER
• EXPERIMENTS WITH ANTI-ICING IN WASHINGTON STATE
• FINAL RESULTS OF ROAD TRAFFIC IN WINTER PROJECT: SOCIOECONOMIC EFFECTS OF WINTER MAINTENANCE AND STUDDED TIRES
• FORWARD-LIGHTING CONFIGURATIONS FOR SNOWPLOWS
• SIMPLIFIED RAPID ASSESSMENT APPROACH TO ROAD NETWORK MANAGEMENT
• SNOW AND ICE CONTROL SYSTEM BASED ON SLIPPERINESS DATA TRANSMITTED BY DRIVERS: USEFULNESS OF SUBJECTIVE SLIPPERINESS DATA