TransportationProceedings of the National Academy of Sciences (PNAS)
Uncovering how transport access reduces deprivation: When colocation misleads
S. Ojha, A. Anupriya, et al.
Transport access shapes who can reach jobs, education, healthcare and community life. This London-wide study by Surabhi Ojha, Anupriya Anupriya, Daniel Hörcher, and Daniel J. Graham compares common accessibility measures (cumulative-opportunity, gravity, random-utility) and uses road‑safety‑based instrumental variables to identify causal effects on deprivation. Findings show measure choice changes how accessibility is represented, random‑utility is strongly nonlinear, and causally improved accessibility reduces multiple IMD domains—insights crucial for evidence‑based transport investment. Listen to learn how accessibility gains can help reduce disadvantage.
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