It was estimated that variable speed limit signs and lane control signals installed on the autobahn in Germany would generate cost savings due to crash reductions that would be equal to the cost of the system within two to three years of deployment. FINDINGS A traffic management system of detection, lane control, variable message signs, and variable speed limits is used in Gotherberg, Sweden. Called Motorway Traffic Management it used in theā¦ Content type Benefit Date Posted 09/21/2000 Taxonomy (ARC-IT) Traffic Information Dissemination (TM06), Integrated Decision Support and Demand Management (TM09), Intermittent Bus Lanes (PT10), Regional Traffic Management (TM07), Restricted Lane Warnings (VS10), Variable Speed Limits (TM20) Geolocation links Frankfurt, Germany