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The Human Development Index (HDI) is a composite statistic used to rank countries by level of “human development” and distinguish “very high human development”, “high human development”, “medium human development”, and “low human development” countries. The Human Development Index (HDI) is a comparative measure of life expectancy, literacy, education and standards of living for countries worldwide.

http://en.wikipedia.org/wiki/Human_Development_Index

The Human Development Index (HDI) is a composite statistic used to rank countries by level of “human development” and distinguish “very high human development”, “high human development”, “medium human development”, and “low human development” countries. The Human Development Index (HDI) is a comparative measure of life expectancy, literacy, education and standards of living for countries worldwide.

http://en.wikipedia.org/wiki/Human_Development_Index

Ratio of backlog tasks versus active tasks. This can be used to estimate general workload.

Number of cars per 10,000 population.

Number of public transport kms travelled per capita.

Density of public transport defined by number of travelled kms per sq km.

Percentage of public transport vehicles running on-time.

Percentage of public transport travels with more than 2 transfers.

Percentage of public transport journeys of total journeys.

Public transport safety index.