Source: adapted from R. Carruthers (2003) The Impacts of Motorization
and What Can Be Done to Mitigate Them, The World Bank.
Relationship between GDP and Motorization, Selected Asian Countries,
This sample concerns major Asian economies, including Japan, China,
South Korea and Singapore taken at different points in time in from
1960 to 1990, when most were experiencing a strong period of economic
growth. Based on this sample, there is a clear exponential relationship
between GDP per capita and motorization. After the $2,000 per capita
threshold is crossed, the level of motor vehicle ownership, and the
expected mobility, increases significantly.