Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Railway Safety - Risks and Economics
KTH, Superseded Departments, Infrastructure.
2002 (English)Doctoral thesis, monograph (Other scientific)
Abstract [en]

Safety analysis is a process involving several techniques.The purpose of this thesis is to test and develop methodssuitable for the safety analysis of railway risks and railwaysafety measures. Safety analysis is a process comprisingproblem identification, risk estimation, valuation of safetyand economic analysis. The main steps are described in separatechapters, each of which includes a discussion of the methodsand a review of previous research, followed by the contributionof this author. Although the safety analysis proceduredescribed can be used for analysing railway safety, it has suchgeneral foundations that it can be used wherever safety isimportant and wherever safety measures are evaluated. Itcombines cost benefit analysis with criteria for thedistribution and the absolute levels of risk.

Risks are estimated with both statistical and risk analysismethods. Historical data on railway accidents are analysed andstatistical models fitted to describe trends in accident ratesand consequences. A risk analysis model is developed usingfault tree and event tree techniques, together with Monte Carlosimulation, to calculate risks for passenger train derailments.The results are compared with the statistical analysis ofhistorical data.

People's valuation of safety in different contexts isanalysed, with relative values estimated in awillingness-to-pay study. A combination of focus groups andindividual questionnaires is used. Two different methods areused to estimate the value of safety and the results arecompared. Comparisons are also made with other studies.

Different approaches for safety analysis and methods foreconomic analysis of safety are reviewed. Cost-benefit analysisas a decision criterion is discussed and a study on theeconomic effectsof a traffic control system is presented.

There are several results of the work. Historical data showsa decrease in the accident rate. The average consequence ofeach accident has not changed over time. The risk analysismodel produces comparable results and enables analysis ofvarious safety measures. The valuation study shows that peopleprefer the prevention of small-scale accidents over theprevention of larger, catastrophic accidents. There are onlysmall differences in the valuation of safety in differentcontexts.

Place, publisher, year, edition, pages
Stockholm: Infrastruktur , 2002. , 280 p.
Series
Trita-INFRA, ISSN 1651-0216 ; 02-019
Keyword [en]
Railway safety, Risk analysis, Statistical analysis, CBA, Economics, Willingness To Pay, Risk criteria
Identifiers
URN: urn:nbn:se:kth:diva-3341ISBN: 91-7323-019-7 (print)OAI: oai:DiVA.org:kth-3341DiVA: diva2:9131
Public defence
2002-05-24
Note
NR 20140805Available from: 2002-05-21 Created: 2002-05-21Bibliographically approved

Open Access in DiVA

fulltext(8401 kB)4027 downloads
File information
File name FULLTEXT01.pdfFile size 8401 kBChecksum MD5
1b733941401fe661b73e9d69e1662a74db05305322b86e02944371fba39c3f5104fa6dc2
Type fulltextMimetype application/pdf

By organisation
Infrastructure

Search outside of DiVA

GoogleGoogle Scholar
Total: 4027 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 1706 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf