Older pedestrians hit by motor vehicles in South Australia

Thompson, James; Baldock, Matthew · 2023 · Crossref

DOI: 10.33492/jrs-d-22-00039

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Summary

This study investigates the road safety vulnerabilities of older pedestrians in South Australia, aiming to identify specific crash characteristics and injury outcomes to inform countermeasures. The research addresses the heightened risk older adults face due to physical fragility and potential declines in cognitive and functional abilities, which complicate their ability to navigate traffic environments safely. The authors analyzed police-reported crash data from 2008 to 2017 for 3,493 pedestrians hit by motor vehicles, alongside hospital admission data for 360 seriously injured pedestrians from two specific periods (2008–2010 and 2014–2017). The analysis compared two older age groups (65–74 and ≥75) against a younger adult control group (18–64). The findings reveal that while fewer older pedestrians were hit in absolute numbers compared to younger adults, those aged ≥75 had higher crash rates per 100,000 population. Crucially, older pedestrians faced significantly higher risks of serious or fatal injury upon impact. Behavioral analysis indicated that older pedestrians were less likely to have consumed alcohol (5% for ≥75 vs. 37% for 18–64) or be deemed responsible for the crash (36% for ≥75 vs. 48% for 18–64). They were also more frequently struck while walking on footpaths (17% for ≥75 vs. 10% for 18–64) and during daylight hours (88% for ≥75 vs. 58% for 18–64), whereas younger pedestrians were more often hit at night while walking on the road. Regarding injury severity, hospital data showed that while the Injury Severity Scale scores did not differ significantly across age groups, older pedestrians required substantially longer hospital stays. Specifically, 46% of those aged ≥75 and 44% of those aged 65–74 were hospitalized for more than 10 days, compared to only 25% of younger adults. This suggests that older adults experience slower recovery trajectories despite similar initial injury metrics. The study concludes that infrastructure, speed management, and vehicle-based countermeasures are necessary to address the disproportionate vulnerability of older pedestrians, particularly given their higher likelihood of being struck in non-conflict scenarios (e.g., on footpaths) and their increased susceptibility to severe health consequences from collisions.

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StageOutcomeToolModelPromptAttemptsCompleted
discover success Crossref 1 2026-06-24
archive success canonical_url 1 2026-06-26
extract success cached 2 2026-06-26
clean success clean 1 2026-06-25
chunk success chunk 1 2026-06-25
embed success embed Qwen/Qwen3-Embedding-8B 1 2026-06-25
promote success 1 2026-06-24
summarize success llm qwen3.6-27b-prismaquant summ-v5 1 2026-06-26
tag success vector_similarity 6 2026-06-25
verify success 1 2026-06-26

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