Accessibility concepts and indicators in transportation strategic planning issues: theoretical framework and literature review

Accessibility is a well-known and studied concept within the scientific literature. Good transportation accessibility is certainly an important factor in exploiting spatial potentials. The quality of transportation infrastructure in terms of capacity, travel speed, connectivity etc., determines the quality and advantage of a location relative to other locations, which is usually measured as accessibility. Increasingly overloaded transport corridors, in the context of changing transportation flows are becoming an important issue for accessibility. This Paper gives a very brief overview of which kind of transportation networks and services indicators should be used in relevant documents and in transportation planning practice. This Paper provides a comprehensive overview of the different definitions, dimensions and indicators of accessibility in the literature of those already discovered.