To address the need for easily available and comprehensive comparative information on affordability of public transport fares, an Affordability Index has been developed that is easy to measure and can be used as a first indication of the affordability of fares in a particular city. The Index is computed for a person on an average income and for someone in the bottom quintile of the income distribution.
World Bank, Washington D.C., USA. Transport Paper No. TP-3, 27 pp.
Affordability of Public Transport in Developing Countries