Impacts of Bicycle Infrastructure in Mid-Sized Cities (IBIMS): protocol for a natural experiment study in three Canadian cities
Open Access
- 21 January 2018
- Vol. 8 (1), e019130
- https://doi.org/10.1136/bmjopen-2017-019130
Abstract
Introduction Bicycling is promoted as a transportation and population health strategy globally. Yet bicycling has low uptake in North America (1%–2% of trips) compared with European bicycling cities (15%–40% of trips) and shows marked sex and age trends. Safety concerns due to collisions with motor vehicles are primary barriers. To attract the broader population to bicycling, many cities are making investments in bicycle infrastructure. These interventions hold promise for improving population health given the potential for increased physical activity and improved safety, but such outcomes have been largely unstudied. In 2016, the City of Victoria, Canada, committed to build a connected network of infrastructure that separates bicycles from motor vehicles, designed to attract people of ‘all ages and abilities’ to bicycling. This natural experiment study examines the impacts of the City of Victoria’s investment in a bicycle network on active travel and safety outcomes. The specific objectives are to (1) estimate changes in active travel, perceived safety and bicycle safety incidents; (2) analyse spatial inequities in access to bicycle infrastructure and safety incidents; and (3) assess health-related economic benefits. Methods and analysis The study is in three Canadian cities (intervention: Victoria; comparison: Kelowna, Halifax). We will administer population-based surveys in 2016, 2018 and 2021 (1000 people/city). The primary outcome is the proportion of people reporting bicycling. Secondary outcomes are perceived safety and bicycle safety incidents. Spatial analyses will compare the distribution of bicycle infrastructure and bicycle safety incidents across neighbourhoods and across time. We will also calculate the economic benefits of bicycling using WHO’s Health Economic Assessment Tool. Ethics and dissemination This study received approval from the Simon Fraser University Office of Research Ethics (study no. 2016s0401). Findings will be disseminated via a website, presentations to stakeholders, at academic conferences and through peer-reviewed journal articles.This publication has 52 references indexed in Scilit:
- The safety of urban cycle tracks: A review of the literatureAccident Analysis & Prevention, 2013
- Impact Evaluation of a Public Bicycle Share Program on Cycling: A Case Example of BIXI in Montreal, QuebecAmerican Journal of Public Health, 2013
- Bicycle helmet use and bicycling-related injury among young Canadians: an equity analysisInternational Journal for Equity in Health, 2013
- Active Travel in Germany and the U.S.: Contributions of Daily Walking and Cycling to Physical ActivityAmerican Journal of Preventive Medicine, 2011
- Health benefits of cycling: a systematic reviewScandinavian Journal of Medicine & Science in Sports, 2011
- Risk of injury for bicycling on cycle tracks versus in the streetInjury Prevention, 2011
- Route Preferences among Adults in the near Market for Bicycling: Findings of the Cycling in Cities StudyAmerican Journal of Health Promotion, 2010
- Statistical power analyses using G*Power 3.1: Tests for correlation and regression analysesBehavior Research Methods, 2009
- The impact of transportation infrastructure on bicycling injuries and crashes: a review of the literatureEnvironmental Health, 2009
- Handling missing data in survey researchStatistical Methods in Medical Research, 1996