Accessibility and the Ring of Unreliability

Mengying Cui, David Levinson

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


This study measures the variability of job accessibility via automobile for the Minneapolis–St. Paul, Minnesota region. The accessibility analysis uses cumulative opportunity measures. The travel times on the network are tested at 10th, 50th, and 90th percentile speed drawn from an annual average for each link from GPS speed data for 2011. It is shown that accessibility varies widely with travel speed. Some parts of the region (a ring around the core) have more volatility in access to jobs (and are thus less reliable) than others.

Original languageEnglish (US)
Pages (from-to)4-21
Number of pages18
JournalTransportmetrica A: Transport Science
Issue number1-2
StatePublished - Jan 2 2018

Bibliographical note

Publisher Copyright:
© 2016, © Mengying Cui 2016.


  • Access
  • GPS
  • reliability
  • vulnerability


Dive into the research topics of 'Accessibility and the Ring of Unreliability'. Together they form a unique fingerprint.

Cite this