Content that references this location

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.

Content references source material no longer available at its original location.
FINDINGS An analysis of gate operations during a severe winter storm was also performed. On November 11, 1998 a snowstorm prompted closure of Interstate 90 between the South Dakota state line and US…
Content type
Date Posted
10/09/2001

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.

Content references source material no longer available at its original location.
FINDINGSThe benefit-to-cost analysis focused on costs of the Interstate 90 gate system and associated benefits due to delay and accident reductions. The annual frequency of snow/ice related…
Content type
Date Posted
10/09/2001