Sweden

City: 
general
Facility Type: 
motorways
Operational Information
Concerned Vehicles: 
all
Speed Information
Speed Limit: 
regulatory if posted in a red circle/recommended without a circle
Traffic Control Devices
Speed Signs: 
signs on gantries above each lane on multi-lane roads
Performance Measures
Operational Effectiveness: 
Using speed harmonization makes speeds drops more slowly. Less sudden braking. The average speed is therefore higher, like the roadway capacity. Travel times on th E6 were reduced by 5-15%
Safety Evaluation: 
20% reduction in number of accidents (not statistically significant)
Other Impacts: 
Cabron dioxide emissions increased slightly due to higher speeds
Institutional Issues
Public Opinion: 
The majority has a postive opinion on speed harmonization, and many admit having more respect for speed limits since the launch of the program. Some have trouble understanding the differnce between recoomended and regulatory (red circle) speed limits