Population-weighted Efficiency in Transportation Networks

Transportation efficiency is critical for the operation of cities and is attracting great attention worldwide. Improving the transportation efficiency can not only decrease energy consumption, reduce carbon emissions, but also accelerate people’s interactions, which will become more and more important for sustainable urban living. Generally, traffic conditions in less-developed countries are not so good due to the undeveloped economy and road networks, while this issue is rarely studied before, because traditional survey data in these areas are scarce. Nowadays, with the development of ubiquitous mobile phone data, we can explore the transportation efficiency in a new way. In this paper, based on users’ call detailed records (CDRs), the authors propose an indicator named population-weighted efficiency (PWE) to quantitatively measure the efficiency of the transportation networks. PWE can provide insights into transportation infrastructure development, according to which the authors identify dozens of inefficient routes at both the intra- and inter-city levels, which are verified by several ongoing construction projects in Senegal. In addition, the authors compare PWE with excess commuting indices, and the fitting result of PWE is better than excess commuting index, which also proves the validity of the authors' method.

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01609723
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 4 2016 10:43AM