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Capital costs to install temporary Variable Speed Limit (VSL) systems in Texas ranged from $91K to $180K.

In 2014, acting on a ruling by the Texas Transportation Commission, TxDOT and Texas A&M Transportation Institute (TTI) a Variable Speed Limit (VSL) pilot program was implemented. The pilot…
Content type
Made Public Date
05/25/2017
Taxonomy (ARC-IT) Variable Speed Limits (TM20)

Pavement friction sensors should target travel lanes instead of shoulder areas where wet pavement can persist causing VSL systems to reduce traffic speeds without need.

Lessons learned during the three month pilot project in Texas included the following: Pavement friction sensors should target travel lanes instead of shoulder areas where wet pavement can persist…
Content type
Date Posted
04/07/2017
Taxonomy (ARC-IT) Variable Speed Limits (TM20)

Variable speed limit pilot found to be effective reducing the number of overall crashes.

Benefits During the variable speed limit pilot in Texas, two safety benefits were observed. Total number of crashes overall was reduced. At two of the three sites there was a reduction in the…
Content type
Date Posted
06/26/2016
Taxonomy (ARC-IT) Variable Speed Limits (TM20)