Évaluation de la qualité et de la diversité des alternatives de transport en commun

Public transportation plays a major role in the fight against climate change and the reduction of greenhouse gases. They are essential to ensure sustainable mobility in cities. Indeed, they help reduce car dependence and are less polluting than other motorized modes due to their greater capacity. Therefore, we must ensure their competitivity. Often, public transport networks are designed to meet the demand for commuting during peak hours, mainly from suburbs to the city center. However, the supply must meet the mobility needs of a variety of individuals and travel purposes, for all hours of the day. Furthermore, it is necessary to ensure a quality and diversity of itineraries to improve the attractiveness of transit and reduce the vulnerability of users, since having only one possible route makes users much more vulnerable to perturbations on the network. To this end, we must question ourselves about quality and diversity of transit alternatives. A transit alternative is a unique sequence of lines and transfers between an origin and a destination at a specific time. The diversity of transit alternatives refers to the number of routes available to make a trip. The aim of this research project is to assess the quality and diversity of transit alternatives. The underlying assumptions are that some transit alternatives do not meet a minimum quality threshold and that not all users have the same level of quality and diversity of transit alternatives.