Scandinavian Working Papers in Economics
Working Papers,
Swedish National Road & Transport Research Institute (VTI)
No 2021:9: Optimal frequency of public transport in a small city: examination of a simple method
Disa Asplund ()
Additional contact information
Disa Asplund: Swedish National Road & Transport Research Institute (VTI), Postal: Dept. of Transport Economics, P.O. Box 55685, SE-102 15 Stockholm, Sweden
Abstract: This study identifies the welfare optimal frequency of a scheduled public transport service from a methodological perspective, exploring what methods are more suitable for the case of bus services in a small city. The study examines how well various versions of the square-root rule, including established and newly proposed versions, estimate the optimal bus frequencies in the case city of Uppsala, versus estimates generated by a more comprehensive partial equilibrium model. The results indicate that extending the square-root rule by including transfer time, as proposed here, is empirically important. Furthermore, the results indicate that the square-root rule, with this extension, can estimate optimal frequency in Uppsala surprisingly well, and may be suitable for bus lines with two-way demand in the range of 75–200 pax/h.
Keywords: Optimization; Public transport; Service frequency; Square-root rule
23 pages, October 25, 2021
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