This chapter reviews and discusses the literature on how equity is operationalized for the purpose of evaluating the impacts of transport policies. It concludes that the equity of accessibility is the most evaluated topic studied. The Gini index is by far the most frequently used index for distributions of accessibility and other effects, probably because of ease of interpretability and communication. The literature on ethical preferences of people, at least as far as related to the distribution of effects of candidate transport policy options, is in its infancy. Interesting topics for future research include distributions in the area of safety, the environment, mobility, changes in distributions over time, preferences of potential users with respect to equity analyses, and the integration of equity analyses in wider evaluation frameworks.