This article investigates the use of the configurational variable, which deals with the city form-space relations regarding transportation issues, to study spatial segregation and urban accessibility in four Brazilian cities (Belém, Manaus, Recife and São Paulo), with a focus in precarious...

The transport economics literature has indicated that introduction of competition for the market in urban bus services (i.e. by means of competitive bidding) could promote cost-efficiency with low fares and better quality services. Therefore, this paper analyse the main outcomes and the latest...

Air pollution concentrations have been rapidly increasing in the major urban areas of Brazil caused mainly by the increasing use of vehicles. In the presence of this negative externality, environmental regulation is required. Car emission control policies in Brazil have relied basically on...