• An energy loss-based vehicular injury severity model 

      Ji, Ang; Levinson, David M.
      Published 2020
      How crashes translate into physical injuries remains controversial. Previous studies recommended a predictor, Delta-V, to describe the crash consequences in terms of mass and impact speed of vehicles in crashes. This study ...
      Open Access
      Article
    • The ensemble approach to forecasting: A review and synthesis 

      Wu, Hao; Levinson, David M.
      Published 2021
      Ensemble forecasting is a modeling approach that combines data sources, models of different types, with alternative assumptions, using distinct pattern recognition methods. The aim is to use all available information in ...
      Open Access
      Article
    • Governing for Access 

      Levinson, David M.
      Published 2023-02-02
      The only reason to locate anywhere is to be near some people, places, and things (opportunities) and be far from others. Access quantifies the ability to reach, or be reached by, people, places, and things. It explains ...
      Open Access
      Report, Technical
    • Immigrant settlement patterns, transit accessibility, and transit use 

      Allen, Jeff; Farber, Steven; Greaves, Stephen; Clinton, Geoffrey; Wu, Hao; Sarkar, Somwrita; Levinson, David M.
      Published 2021
      Public transit is immensely important among recent immigrants for enabling daily travel and activity participation. The objective of this study is to examine whether immigrants settle in areas of high or low transit ...
      Open Access
      Article
    • Job and worker density and transit network dynamics 

      Li, Manman; Cui, Mengying; Levinson, David M.
      Published 2021
      This paper proposes a general framework to explore the interaction between land use and transport systems. Hypotheses about those relationships are generated. A series of statistical tests are conducted to explain the ...
      Open Access
      Article
    • Towards a General Theory of Access 

      Levinson, David M; Wu, Hao
      Published 2020-01-01
      This paper integrates and extends many of the concepts of accessibility deriving from Hansen’s (1959) seminal paper, and develops a theory of access that generalizes from the particular measures of access that have become ...
      Open Access
      Article