Effectiveness of 30 km/h speed limit – A literature review

IF 3.9 2区工程技术 Q1 ERGONOMICS

Journal of Safety Research Pub Date : 2025-02-01 DOI:10.1016/j.jsr.2024.11.003

George Yannis, Eva Michelaraki

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引用次数: 0

Abstract

Introduction: Road crashes are a major social problem, resulting in 1.19 million fatalities and over 50 million injuries annually. Speeding is the primary cause of road crashes worldwide, particularly in cities where pedestrians, cyclists, and motorcyclists are especially vulnerable. This paper aims to review and assess the effectiveness of implementing a 30 km/h speed limit. Method: To achieve this objective, a comprehensive literature review was conducted, evaluating the impact of 30 km/h speed limits on safety, emissions, energy consumption, traffic flow, livability, and health. The systematic literature review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Results: Current scientific evidence indicated that the introduction of 30 km/h speed limits in cities can save over 40% of lives, alongside significant positive effects on the environment, energy consumption and public health, including reduced fuel consumption and increased walking and cycling. Practical Applications: Public awareness campaigns and promoting the use of public transport and active mobility options, such as walking and cycling, could further support the adoption of 30 km/h speed limits in cities.

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30公里时速限制的有效性——文献综述

导言：道路交通事故是一个重大的社会问题，每年造成119万人死亡，5000多万人受伤。超速是世界范围内道路交通事故的主要原因，特别是在行人、骑自行车的人和骑摩托车的人特别容易受到伤害的城市。本文旨在审查和评估实施30公里/小时限速的有效性。方法：为了实现这一目标，进行了全面的文献综述，评估了30公里/小时限速对安全、排放、能源消耗、交通流量、宜居性和健康的影响。系统文献综述遵循系统评价和荟萃分析的首选报告项目（PRISMA）指南。结果：目前的科学证据表明，在城市中引入30公里/小时的速度限制可以挽救40%以上的生命，同时对环境、能源消耗和公共卫生产生重大积极影响，包括减少燃料消耗和增加步行和骑自行车。实际应用：提高公众意识的运动和促进使用公共交通和主动移动选择，如步行和骑自行车，可以进一步支持在城市采用30公里/小时的速度限制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Safety Research Multiple-

CiteScore

6.40

自引率

4.90%

发文量

174

审稿时长

61 days

期刊介绍： Journal of Safety Research is an interdisciplinary publication that provides for the exchange of ideas and scientific evidence capturing studies through research in all areas of safety and health, including traffic, workplace, home, and community. This forum invites research using rigorous methodologies, encourages translational research, and engages the global scientific community through various partnerships (e.g., this outreach includes highlighting some of the latest findings from the U.S. Centers for Disease Control and Prevention).