1. Alsnih, R., Hensher, D.A.: The mobility and accessibility expectations of seniors in an aging population. Transp. Res. Part A 37, 903–916 (2006)
2. Banister, D., Bowling, A.: Quality of life for the elderly: the transport dimension. Transp. Policy 11, 105–115 (2004)
3. Bower, B.: Social links may counter health risks. Sci. News 152(9), 135 (1997)
4. Browning, C., Sims, J.: Ageing without driving: keeping older people connected. In: Currie, G., Stanley, J., Stanley, J. (eds.) No Way to go: Transport and Social Disadvantage in Australian Communities, pp. 6.1–6.10. Monash University ePress, Victoria (2007)
5. Burkhardt, J.E. (2003) Better transportation services for older persons. In: Annual Meeting of the Transportation Research Board (2003)