A qualitative exploration of the mechanisms, pathways and public health outcomes of a city centre 20mph speed limit intervention: The case of Belfast, United Kingdom

Claire L. Cleland*, Graham Baker, Kieran Turner, Ruth Jepson, Frank Kee, Karen Milton, Michael P. Kelly, Glenna Nightingale, Ruth F. Hunter

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Twenty miles per hour (mph) speed limits can impact the health of the public (e.g., road safety, active travel). However, a better understanding of how individuals experience 20mph limits is required, to ensure interventions are cognisant of perceptions and potential un/intended outcomes. Focus groups (n = 9, 60 participants) to explore the Belfast 20mph intervention highlighted divergent perspectives and experiences including: 12 mechanisms (e.g., limited awareness), 15 pathways (e.g., reduced driving speed→improved liveability) and 10 public health outcomes (e.g., increased cyclist safety). Future interventions should consider un/intended outcomes and implement strategies to enhance effectiveness and mitigate harms (e.g., through training, enforcement).

Original languageEnglish
Article number102627
Number of pages10
JournalHealth and Place
Volume70
Early online date20 Jul 2021
DOIs
Publication statusPublished - 21 Jul 2021

Keywords / Materials (for Non-textual outputs)

  • 20mph speed limit (30km/h)
  • complex intervention
  • focus groups
  • mechanisms
  • pathways

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