- Börjesson, M. and Rubensson, I., 2019, Satisfaction with crowding and other attributes in public transport. Transport Policy, 79, 213-222.
- Turner, S., E. Corbett, R. O’Hara, and J. White, 2004, Health and safety effects of rail crowding: Hazard identification. HSL Report RAS/04/12.
- Mohd Mahudin, N. D., T. Cox, and A. Griffiths, A, 2012, Measuring rail passenger crowding: Scale development and psychometric properties. Transportation Research Part F 15(1), 38–51.
- Evans, G. W., S. J. Lepore, and K. Mata-Allen, 2000, Cross-cultural differences in
tolerance for crowding: Fact or fiction?. Journal of Personality and Social Psychology
79(2), 204–210.
- Hirsch, L., and K. Thompson, 2011, I can sit but I'd rather stand: Commuters’ experience of crowdedness and fellow passenger behaviour in carriages on Australian metropolitan trains. Paper presented at the 34th Australasian Transport Research Forum, Adelaide, South Australia, Australia.
- Li, Z. and Hensher, D.A., 2013, Crowding in public transport: a review of objective and subjective measures. Journal of Public Transportation, 16(2), p.6.