1. 1 Network Safety Management – A French-German Co-operation Kerstin LEMKE Federal Highway Research Institute (BASt) Pascal CHAMBON Roads and Motorways Engineering Dept.(Sétra) François GANNEAU Roads and Motorways Engineering Dept.(Sétra)

2. 2 French-German Elysée Treaty (1963) Co-operation in Politics Public Services Science Exchange of experience on safety analysis of existing road networks Source : Bundesbildstelle, Berlin

3. 3 National Guidelines

4. 4 Understand DIAGNOSIS AND DEVELOPMENT OF MEASURES Act RANKING AND IMPLEMENTATION OF MEASURES Improving Safety of Existing Road Networks ASSESSMENT OF MEASURES Evaluate Know ACCIDENTDATABASEANALYSIS NSM

5. 5 Methodology Requirements Road administrations have to determine poor road sections/itineraries where possible improvements will be highly cost-efficient. Methodology for accident analysis has to  be based on costs (Euros)  provide a ranking of sections for further analysis

6. 6 Accidents with personal injury on German motorways 2002 Accident Rate Accidents 10 6 vehkm 0,25 - 0,42 (n=360) 0,06 - 0,25 (n=3661) 0 - 0,06 (n=1158) 0,72 and more (n=37) 0,42 - 0,72 (n=106)

7. 7 joint analysis of accidents of different severity consideration of different casualty structures basis for cost-benefit analysis number of accidents accident cost severity Accident Cost instead of Number

8. 8 Safety Potential actual accident cost per km =accident cost per kilometre that could be saved by improvement measures =accident cost to be compared with costs for measures (cost-benefit analysis) - target accident cost per km = safety potential

9. 9 Accidents with personal injury and serious damage-only accidents on German motorways 2001-2003 Safety Potential 1000 Euro km 50 - 105 (n=671) 105 - 250 (n=555) 250 and more (n=187)

10. 10 Ranking of sections/itineraries Basis for further analysis, development of measures and assessment

11. 11 Understand DIAGNOSIS AND DEVELOPMENT OF MEASURES Act RANKING AND IMPLEMENTATION OF MEASURES Improving Safety of Existing Road Networks ASSESSMENT OF MEASURES Evaluate NSM Ranking of sections/itineraries

12. 12 Network safety management highlights worst performing sections/itineraries provides a priority ranking of sections/ itineraries to be further analysed and improved permits a direct comparison: potential savings in accident costs vs. costs of improvement measures focuses on longer sections/itineraries complements Black Spot Management coincides with EU Commission’s definition

13. 13 Where do we stand now? Germany: Safety potential map for motorways (since 2003) Pilot for all interurban roads in one state (2006) France: Method applied at national level (2005) Feedback on trials 16 M€ available for 2006

14. 14 References “Network Safety Management (NSM)” http://www.sure.equipement.gouv.fr/IMG/pdf /NSM_V_FD_final_cle55ec71-1.pdf „Guidelines for Safety Analysis of Road Networks (ESN)“, FGSV, Germany 2003. http:// www.bast.de “User Safety on the Existing Road Network (USER)”, http://www.sure.equipement.gouv.fr