The propensity of people to travel on foot involves diverse conditions, often categorized by the term walkability. Various studies have been conducted to establish both the factors that influence walkability and the indicators used to measure it. Particular interest has been focused on the built environment, specifically the urban design, represented by the road network. The configuration of this network, its density and connectivity affect the times and continuity of travel on foot as well as the number of alternative routes. Based on a review of the literature and the indexes available in graph theory, we establish the most suitable indicators to represent to urban design, which can be used to investigate the influence of the configuration of the network on people's propensity to travel on foot. Conceptually, indicators based on cycles tend to explain connectivity better. From this review and in exploratory form, we suggest a scale based on easily obtained indicators that express the potential of a given area to favor walking, according to its configuration. This scale can contribute to choice the most suitable areas for establishing trip generation hubs oriented to pedestrians.
travel on foot; road network; urban design; walkability; graph theory