A standardised measurement makes walkability easily studied analytically and across various disciplines. Attempts to create walkability measures started in the 1990s, with increasingly sophisticated composite walkability indices being proposed in the past decade. One that gained wide attention is Walk Score, which is developed by a group of planners and urbanists and provides standardised walkability evaluations. Leveraging on web and amenities data, Walk Score evaluates a great number of cities in the USA, Canada, Australia and New Zealand. The ready-to-use scoring data and algorithms permit extensive evaluation by practitioners and researchers without their own modelling capacity.
