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Field data collected over the last two decades show variable speed limit (VSL) systems can reduce crash potential by 8 to 30 percent.

FINDINGS The data below excerpted from Table-1 of the source report highlights findings from the literature search.   Type of Test Location Major Findings Field…
Content type
Date Posted
12/07/2012

Mandatory dynamic automatic controlling Intelligent Speed Assistance (ISA) could reduce fatal crashes over the entire road network by more than 50 percent, whereas static informing ISA could still give a reduction of almost 20 percent.

FINDINGSThe role of in-car speed assistance systems can gradually become more prominent in speed management, in combination with traditional measures (infrastructural engineering, education,…
Content type
Date Posted
05/06/2011

Mandatory dynamic automatic controlling ISA (Intelligent Speed Assistance) could reduce fuel consumption and harmful emissions by 4 to 11 percent.

FINDINGS The role of in-car speed assistance systems can gradually become more prominent in speed management, in combination with traditional measures (infrastructural engineering, education,…
Content type
Date Posted
05/06/2011