1. 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

2. Traffic safety work in Norway
Vision Zero
The E18 project

3. Accidents - reasons Three parts and combinations Road-user Road
Vehicles

4. 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

5. 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+

6. 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?

7. E18 - accidents
Two accidents where people was killed

8. Road Accidents
Number of road fatalities reduced with 50% since 1970
The risk is among the lowest in the world

9. 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

10. 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

11. E18 project in Vestfold county

12. 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

13. E18 Sky - Langangen 11,7 km new four-lane motorway
Building period:
Total cost: 200 mill. euro
or euro per meter
euro per meter free road
euro per meter tunnel
euro per meter bridge

14. The profile

15. Geometry - parametres Speed limit: 100 km/h
Minimum horizontal radius: 700 m
Minimum high vertical radius: m
Minimum low vertical radius: m
Maximum rise: 5 %

16. Injuries and fatalities by types of accidents (annual average 2000-2004)
Nearly 70 % is head-on or running-off the road accidents

17. 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)

18. Central barrier
Central barriers

19. Forgiving side area
Soil towards the rock cut
Raised-rib-road-marking

20. The guardrail has penetrated the car

21. Different kinds of forgiving terminals
ABC-terminal
ESPEN (Energy-absorbing, Steel, Plastic, ENd-terminal)

22. ABC-terminal after a collision

23. Ready for take off?

24. Guardrail / end of guardrail

25. Should be guardrail….
Guardrail

26. High energy columns
High energy columns

27. Simulator – E18 project