Finland

City: 
Helsinki
Facilities: 
E18
Facility Type: 
motorways
Objectives: 
regulate speeds according to traffic and weather conditions
Date Implemented: 
7-Jan
Operational Information
Concerned Vehicles: 
all
Other ATDM Approaches: 
dynamic warning and information signs
ITS: 
autmoated traffic measure points and traffic cameras
Performance Measures
Operational Effectiveness: 
mean speed unchanged but speed range was narrowed
Institutional Issues
Public Opinion: 
postive impact of adverse weather condition warning on VMS. The double nature of the signs (regulatory/guidance) limits the impact of the VMS on drivers