Ragnar Grøsfjeld Senior engineer Norwegian Public Roads Administration Motorway design: Relevance of a systemic and integrated study in building safe motorways. The case of Norway’s E18 Ragnar Grøsfjeld Senior engineer Norwegian Public Roads Administration 0445-08 grafisk.senter@vegvesen.no
Traffic safety work in Norway Vision Zero The E18 project
Accidents - reasons Three parts and combinations Road-user Road Vehicles
Traffic safety Accident reporting system Why register? keep an eye on the accident-development identify special problems and design the right efforts to decide the work priority evaluate / measure the effect of the efforts Several data sources: police reports technical reports (vehicle inspectors) hospital reports insurance reports
Traffic safety (cont.) Road safety inspection Short-term measures New knowledge since the road was built Information (road-users) Seatbelt campaign Stop & sleep Speak out! (”it’s not cool to be dead”) 65+
Traffic safety (cont.) Accident Investigation Group (for all fatal accidents) Reasons for the accidents? How can we learn from the accidents? How can we avoid this kind of accidents? How can we use this knowledge in the traffic safety work in general?
E18 - accidents Two accidents where people was killed
Road Accidents 1948 - 2006 Number of road fatalities reduced with 50% since 1970 The risk is among the lowest in the world
Vision Zero Approved in National Transportation Plan 2002-2011 “A vision of no road fatalities causing people get killed or seriously injured” KILLED SERIOUSLY INJURED
The vision Zero is based on: It is human to make mistakes The human body is sensitive to violence The road-users of course have to follow the rules, but we also have to adjust the road and the vehicles KILLED SERIOUSLY INJURED
E18 project in Vestfold county
E18 Gulli - Langangen My project: Sky - Langangen Vi har ca. 40 km veg under planlegging. Gulli – Langåker: Utvidelse av eksisterende veg Langåker – Bommestad: Ny 4- felts veg på vest-siden av eksisterende veg Bommestad – Sky: Ny veg eller utvidelse av eksisterende veg Sky – Nøklegård: Ny veg på nordsiden av eksisterende veg
E18 Sky - Langangen 11,7 km new four-lane motorway Building period: 2009 - 2011 Total cost: 200 mill. euro or 17 000 euro per meter 12 500 euro per meter free road 25 000 euro per meter tunnel 37 500 euro per meter bridge
The profile
Geometry - parametres Speed limit: 100 km/h Minimum horizontal radius: 700 m Minimum high vertical radius: 13 700 m Minimum low vertical radius: 3 400 m Maximum rise: 5 %
Injuries and fatalities by types of accidents (annual average 2000-2004) Nearly 70 % is head-on or running-off the road accidents
Efforts – E18 motorway Central barriers Safer side areas Guardrail / end of the guardrail Raised-rib-road-marking (making noise) Road lightning Avoid dangerous elements in the side areas (or protect with guardrail)
Central barrier Central barriers
Forgiving side area Soil towards the rock cut Raised-rib-road-marking
The guardrail has penetrated the car
Different kinds of forgiving terminals ABC-terminal ESPEN (Energy-absorbing, Steel, Plastic, ENd-terminal)
ABC-terminal after a collision
Ready for take off?
Guardrail / end of guardrail
Should be guardrail…. Guardrail
High energy columns High energy columns
Simulator – E18 project