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Explore quantitative evaluation methods for timetable attractiveness parameters including structure, complexity, travel time, transfers, punctuality, and reliability. Develop a multi-criteria objective function for timetable generation.
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Quantitative Methods to Evaluate Timetable Attractiveness RAILZürich 2009 Bernd Schittenhelm, Technical University of Denmark & Rail Net Denmark
Motivation • Development of a multi-criteria timetable attractiveness objective function - e.g. to use for timetable generation • Quantitative methods for fast evaluation of and easy comparison of candidate timetables
Outline Present quantitative evaluation methods for the following attractiveness parameters • Timetable structure • Timetable complexity • Travel time • Transfers • Punctuality & reliability ----------------------------------- • Timetable Attractiveness Index • Conclusion & further research
Timetable structure [Source: Liebchen 2006]
Timetable complexity Timetable complexity is characterized by the existing interdependencies in a given timetable
Train transfers p = minimal interchange time h = minimal headway d = planned dwell time p = h + d
Conclusion & further research • Preliminary quantitative evaluations methods for the following timetabling issues - Timetable structure - Timetable complexity - Travel time - Transfers - Punctuality and reliability • Quantitative evaluation indexes need further research / refinement to improve each index individually and the general timetable attractiveness index e.g. identification of preferred national timetable structure by conducting interviews and implement results in a multi-criteria analysis • Creation of a multi-criteria objective function for timetable generation
Quantitative Methods to Evaluate Timetable AttractivenessThank you for your attention!Questions?Bernd Schittenhelm, bs@transport.dtu.dk