This paper investigates the impact of price on transport equity in Vietnam. Utilizing data from a comprehensive survey of 2754 passengers who selected passenger cars, intercity buses, railways, or airplanes, the study conducts inequity indicator-based analyses to examine variations in fare (or price for passenger cars) equity across these long-distance travel modes. The findings reveal that intercity buses offer more equitable fares compared to alternative options, highlighting the significant role fare equity plays in mode choice preferences. Specifically, passengers are more likely to choose intercity buses over railways and airplanes because of their more equitable fare structures. In contrast, regional rail services exhibit considerable horizontal inequity, as their fares are generally more expensive than those of intercity buses and even passenger cars. In addition, fare equity varies by region within Vietnam. Notably, both intercity buses and rail services are less attractive in the Northern Midlands and Mountains because of high ticket prices, reflecting regional spatial inequities. This study provides valuable insights into how fare equity influences mode choice for long-distance travel in Vietnam and offers guidance for fare policy and transportation planning by emphasizing the importance of equitable fare structures.
MalichováE.CornetY.HudákM.Travellers’ Use and Perception of Travel Time in Long-Distance Trips in Europe. Travel Behaviour and Society, Vol. 27, 2022, pp. 95–106. https://doi.org/10.1016/j.tbs.2021.12.003.
2.
WadudZ.AdeelM.AnableJ.Understanding the Large Role of Long-Distance Travel in Carbon Emissions from Passenger Travel. Nature Energy, Vol. 9, 2024, pp. 1129–1138. https://doi.org/10.1038/s41560-024-01561-3.
3.
BrownA. E.Fair Fares? How Flat and Variable Fares Affect Transit Equity in Los Angeles. Case Studies on Transport Policy, Vol. 6, No. 4, 2018, pp. 765–773. https://doi.org/10.1016/j.cstp.2018.09.011.
4.
WangS.LiuY.CorcoranJ.Equity of Public Transport Costs before and after a Fare Policy Reform: An Empirical Evaluation Using Smartcard Data. Transportation Research Part A: Policy and Practice, Vol. 144, 2021, pp. 104–118. https://doi.org/10.1016/j.tra.2020.12.010.
5.
SharabyN.ShiftanY.The Impact of Fare Integration on Travel Behavior and Transit Ridership. Transport Policy, Vol. 21, 2012, pp. 63–70. https://doi.org/10.1016/j.tranpol.2012.01.015.
6.
BandeganiM.AkbarzadehM.Evaluation of Horizontal Equity under a Distance-Based Transit Fare Structure. Journal of Public Transportation, Vol. 19, No. 3, 2016, pp. 161–172. https://doi.org/10.5038/2375-0901.19.3.10.
7.
FarberS.BartholomewK.LiX.PáezA.Nurul HabibK. M.Assessing Social Equity in Distance Based Transit Fares Using a Model of Travel Behavior. Transportation Research Part A: Policy and Practice, Vol. 67, 2014, pp. 291–303. https://doi.org/10.1016/j.tra.2014.07.013.
8.
JochemP.LissonC.KhannaA. A.The Role of Coordination Costs in Mode Choice Decisions: A Case Study of German Cities. Transportation Research Part A: Policy and Practice, Vol. 149, 2021, pp. 31–44. https://doi.org/10.1016/j.tra.2021.04.001.
9.
MabitS. L.RichJ.BurgeP.PotoglouD.Valuation of Travel Time for International Long-Distance Travel – Results from the Fehmarn Belt Stated Choice Experiment. Journal of Transport Geography, Vol. 33, 2013, pp. 153–161. https://doi.org/10.1016/j.jtrangeo.2013.10.003.
RenX.ChenZ.WangF.DanT.WangW.GuoX.LiuC.Impact of High-Speed Rail on Social Equity in China: Evidence from a Mode Choice Survey. Transportation Research Part A: Policy and Practice, Vol. 138, 2020, pp. 422–441. https://doi.org/10.1016/j.tra.2020.05.018.
12.
LinD.-Y.FangJ.-H.HuangK.-L.Passenger Assignment and Pricing Strategy for a Passenger Railway Transportation System. Transportation Letters, Vol. 11, No. 6, 2019, pp. 320–331. https://doi.org/10.1080/19427867.2017.1343764.
13.
StavinsJ.Price Discrimination in the Airline Market: The Effect of Market Concentration. Review of Economics and Statistics, Vol. 83, No. 1, 2001, pp. 200–202. https://doi.org/10.1162/rest.2001.83.1.200.
14.
LiuR.GuiX.ChenD.NiS.Market Competition Oriented Air-Rail Ticket Fare Optimization. Multimodal Transportation, Vol. 2, No. 1, 2023, p. 100053. https://doi.org/10.1016/j.multra.2022.100053.
15.
MattioliG.DobruszkesF.ScheinerJ.WadudZ.Editorial: Long-Distance Travel, between Social Inequality and Environmental Constraints. Travel Behaviour and Society, Vol. 30, 2023, pp. 38–40. https://doi.org/10.1016/j.tbs.2022.08.006.
AbrateG.PiacenzaM.VannoniD.The Impact of Integrated Tariff Systems on Public Transport Demand: Evidence from Italy. Regional Science and Urban Economics, Vol. 39, No. 2, 2009, pp. 120–127. https://doi.org/10.1016/j.regsciurbeco.2008.05.014.
18.
MATASA.Demand and Revenue Implications of an Integrated Public Transport Policy: The Case of Madrid. Transport Reviews, Vol. 24, No. 2, 2004, pp. 195–217. https://doi.org/10.1080/0144164032000107223.
19.
HirschL. R.David JordanJ.HickeyR. L.CravoV.Effects of Fare Incentives on New York City Transit Ridership. Transportation Research Record: Journal of the Transportation Research Board, 2000. 1735: 147–157.
20.
CerveroR.Flat versus Differentiated Transit Pricing: What’s a Fair Fare?Transportation, Vol. 10, No. 3, 1981, pp. 211–232. https://doi.org/10.1007/BF00148459.
21.
RamjerdiF.Equity Measures and Their Performance in Transportation. Transportation Research Record: Journal of the Transportation Research Board, 2006. 1983: 67–74.
22.
FalavignaC.HernandezD.Assessing Inequalities on Public Transport Affordability in Two Latin American Cities: Montevideo (Uruguay) and Córdoba (Argentina). Transport Policy, Vol. 45, 2016, pp. 145–155. https://doi.org/10.1016/j.tranpol.2015.09.011.
23.
GaggeroA. A.OgrzewallaL.BubaloB.Pricing of the Long-Distance Bus Service in Europe: The Case of Flixbus. Economics of Transportation, Vol. 19, 2019, p. 100120. https://doi.org/10.1016/j.ecotra.2019.100120.
FagedaX.SansanoS.Factors Influencing Prices and Frequencies in the Interurban Bus Market: Evidence from Europe. Transportation Research Part A: Policy and Practice, Vol. 111, 2018, pp. 266–276. https://doi.org/10.1016/j.tra.2018.03.022.
26.
NgocA. M.NishiuchiH.Impact of High-Speed Rail on Social Equity—Insights from a Stated Preference Survey in Vietnam. Sustainability, Vol. 14, No. 2, 2022, p. 602. https://doi.org/10.3390/su14020602.
27.
JanzenM.VanhoofM.SmoredaZ.AxhausenK. W.Closer to the Total? Long-Distance Travel of French Mobile Phone Users. Travel Behaviour and Society, Vol. 11, 2018, pp. 31–42. https://doi.org/10.1016/j.tbs.2017.12.001.
28.
HuP. S.ReuscherT. R.Summary of Travel Trends: 2001 National Household Travel Survey. National Technical Information Service, Springfield, VA, 2004. https://nhts.ornl.gov/2001/pub/STT.pdf.
29.
FreiA.KuhnimhofT.AxhausenK. W.Long Distance Travel in Europe Today: Experiences with a New Survey. Transportation Research Board, Washington, D.C., 2010. https://trid.trb.org/view/910298.
30.
IngramD. R.The Concept of Accessibility: A Search for an Operational Form. Regional Studies, Vol. 5, No. 2, 1971, pp. 101–107. https://doi.org/10.1080/09595237100185131.
31.
DelboscA.CurrieG.The Spatial Context of Transport Disadvantage, Social Exclusion and Well-Being. Journal of Transport Geography, Vol. 19, No. 6, 2011, pp. 1130–1137. https://doi.org/10.1016/j.jtrangeo.2011.04.005.
32.
General Statistics Office (GSO), 2022. PX Web - National Statistics Office of Vietnam.General Statistics Office (GSO), 2022. PX Web - National Statistics Office of Vietnam.
33.
BonsallP. W.O'FlahertyC.A.BellM.G.H.BonsallP.W.LeakeG.R.MayA.D.NashC.A., C.a.b.t.-t.p. and t.e. O'Flaherty (Eds.), Chapter 12 - Issues in Survey Planning and Design, Butterworth-Heinemann, Oxford, 1997, pp. 222-231. 10.1016/B978-034066279-3/50014-110.1016/B978-034066279-3/50014-1
34.
ZhanS.WongS. C.LoS. M.Social Equity-Based Timetabling and Ticket Pricing for High-Speed Railways. Transportation Research Part A: Policy and Practice, Vol. 137, 2020, pp. 165–186. https://doi.org/10.1016/j.tra.2020.04.018.
35.
GuzmanL. A.OviedoD.RiveraC.Assessing Equity in Transport Accessibility to Work and Study: The Bogotá Region. Journal of Transport Geography, Vol. 58, 2017, pp. 236–246. https://doi.org/10.1016/j.jtrangeo.2016.12.016.
36.
RojoM.Gonzalo-OrdenH.dell’OlioL.IbeasÁ.Relationship between Service Quality and Demand for Inter-Urban Buses. Transportation Research Part A: Policy and Practice, Vol. 46, No. 10, 2012, pp. 1716–1729. https://doi.org/10.1016/j.tra.2012.07.006.
37.
XuK.WangH.WangZ.MeiK.Distribution Justice and Regional Equity of Urban Public Transport Services: Evidence from China. Transportation Research Part D: Transport and Environment, Vol. 126, 2024, p. 104033. https://doi.org/10.1016/j.trd.2023.104033.
38.
KarnerA.PereiraR. H. M.FarberS.Advances and Pitfalls in Measuring Transportation Equity. Transportation, Vol. 52, 2024, pp. 1399–1427. https://doi.org/10.1007/s11116-023-10460-7.
