2026-06-22 スウォンジー大学
Picture: Pixabay
＜関連情報＞
- https://www.swansea.ac.uk/press-office/news-events/news/2026/06/experts-lead-call-for-tougher-restrictions-on-suvs-as-public-fail-to-understand-risks-of-larger-cars.php
- https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6915851
ソフトな政策介入で自動車事故による被害に対処できるか？スポーツ用多目的車（SUV）広告における安全警告の無作為化比較試験 Can soft-policy interventions address motoring harms? A randomized controlled trial of safety warnings on Sports Utility Vehicle (SUV) adverts
Jimin Choi,James Ward,Ian Walker
Social Science Research Network Posted: 11 Jun 2026
DOI:https://dx.doi.org/10.2139/ssrn.6915851
Abstract
Larger vehicles like SUVs and pickup trucks impose elevated risks onto other road users, but we do not know whether making this salient to the public might shift their choices toward safer vehicles. We conducted a randomized controlled trial with a demographically stratified sample of 2105 UK residents. People viewed mockup SUV advertisements with or without information overlays indicating the greater risks these vehicles create for pedestrians and cyclists. Interest in purchasing an SUV and perceived risks were assessed before and after viewing the advertisements. Overall, participants who initially did not agree that SUVs present greater danger to vulnerable road users were 28.2% more likely to do so after seeing the warning message compared to controls, though the effect was smaller among current SUV owners and those interested in buying one. There was relatively little change in future SUV purchase intentions after viewing the warning information, even among drivers who recognised SUVs were more dangerous and even among drivers who claimed other people’s safety was important when choosing a vehicle. This suggests that warning messages are unlikely to influence many consumers toward safer vehicles. Building on earlier car-buying research, we suggest many people’s decision processes might not involve a stage in which they narrow down potential vehicles based on pro-social information. More widely, drawing on other transportation research, we argue that thanks to entrenched socio-cultural norms – in this case, of tolerating avoidable motoring harms – information-based interventions are unlikely substantially to change any road transportation behaviours, and that hard-policy actions will usually be necessary.
