Spatial issues revisited: The role of shared transportation modes

This paper investigates the mechanisms through which shared modes help reduce major spatial issues related to mobility in urban areas, namely road congestion and rivalry of use for parking spaces. In this article, I use gross space consumption estimations for different transportation modes as a basis and integrate the service provided by the modes. Results indicate that in terms of time-space consumption and service provided shared modes are intermediate modes between private modes and mass transit. Therefore, shared modes constitute key components of a comprehensive and efficient transportation system in urban areas. The present analysis provides guidance for local transportation authorities.