Post on 03-Jan-2016
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Network Safety Management –
A French-German Co-operationKerstin LEMKE
Federal Highway Research Institute (BASt)
Pascal CHAMBONRoads and Motorways Engineering Dept.
(Sétra) François GANNEAU
Roads and Motorways Engineering Dept.(Sétra)
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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
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Understand DIAGNOSIS ANDDIAGNOSIS ANDDEVELOPMENT OF MEASURESDEVELOPMENT OF MEASURES
ActRANKING AND RANKING AND
IMPLEMENTATION OF IMPLEMENTATION OF MEASURESMEASURES
Improving Safety of Existing Road Networks
ASSESSMENTASSESSMENTOF MEASURESOF MEASURES
Evaluate
KnowACCIDENTACCIDENTDATABASEDATABASEANALYSISANALYSIS
NSM
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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 sectionsfor further analysis
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Accidentswith personal injuryon German motorways2002
Accident Rate Accidents
106 veh•km
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)
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• joint analysis of accidents of different severity • consideration of different casualty structures• basis for cost-benefit analysis
number ofaccidents accident
cost
severity
Accident Cost instead of Number
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Safety Potential
actual accident cost per km
= accident cost per kilometre that could besaved by improvement measures
= accident cost to be compared withcosts for measures (cost-benefit analysis)
-target accident cost per km
=safety potential
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Accidents with personal injury and serious damage-only accidents on German motorways 2001-2003
Safety Potential1000 Euro
km
50 - 105 (n=671)
105 - 250 (n=555)250 and more (n=187)
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Ranking of sections/itineraries
Basis for further analysis, development of measures and assessment
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Understand DIAGNOSIS ANDDIAGNOSIS ANDDEVELOPMENT OF MEASURESDEVELOPMENT OF MEASURES
ActRANKING AND RANKING AND
IMPLEMENTATION OF IMPLEMENTATION OF MEASURESMEASURES
Improving Safety of Existing Road Networks
ASSESSMENTASSESSMENTOF MEASURESOF MEASURES
Evaluate
NSMRanking ofsections/itineraries
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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
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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
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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