How to Make Bicycling Safer - Identification and Prevention of Serious Injuries among Bicyclists
The overall aim of this thesis was to guide current and future safety improvements that address serious injuries among bicyclists. The thesis is compiled by four studies, of which the first two aimed to identify injuries leading to loss of health from a biopsychosocial perspective, and the two following studies aimed to understand how these injuries occur and how they can be prevented. Study I investigated health-related quality of life (HRQoL), based on the EQ-5D questionnaire, while Study II investigated sickness absence (SA), following a bicycle crash. On a general level, the injuries associated with problems in HRQoL and long-term SA included mainly fractures of the hip and upper leg, fractures of the lower leg and ankle, fractures of the upper arm, fractures and sprains of the shoulder, traumatic brain injuries, and fractures and strains to the spine. Study III found that the majority (68%) of such injuries occurred in single bicycle crashes, and further 17% in collisions with motor vehicles. In Study IV it was shown that the current Swedish safety performance indicators related to cycling could address up to 22% of crashes involving injuries associated with problems in HRQoL and long term SA. In addition to the current safety performance indicators, the following five actions should be the focus of more rapid implementation: autonomous emergency braking with cyclist detection on passenger cars, extended maintenance to include all urban roads used for cycling, improved design of curbstones, and to separate cyclists from both motor vehicles and pedestrians. Overall, this thesis highlights that additional interventions targeting single bicycle crashes need to be prioritised by road authorities in order to prevent health loss among bicyclists.
Parts of work
I. Ohlin, M., Berg, H.Y., Lie, A., Algurén, B. (2017). Long-term problems influencing health-related quality of life after road traffic injury – Differences between bicyclists and car occupants. Journal of Transport & Health, 4:180 190. ::doi::10.1016/j.jth.2016.08.007II. Ohlin, M., Kjeldgård, L., Elrud, R., Friberg, E., Stigson, H., Alexanderson, K. (2018). Duration of sickness absence following a bicycle crash, by injury type and injured body region; a population-based study. Journal of Transport & Health, 9:275-281. ::doi::10.1016/j.jth.2018.01.011III. Ohlin, M., Algurén, B., Lie, A. (2019). Analysis of bicycle crashes in Sweden involving injuries with high risk of health-loss. Traffic Injury Prevention, 20(6):613-618. ::doi:: 10.1080/15389588.2019.1614567IV. Ohlin, M., Rizzi, M., Algurén, B., Kullgren, A. The potential of different countermeasures to prevent injuries with high risk of health loss among bicyclists in Sweden. Manuscript submitted.
Doctor of Philosophy
Göteborgs universitet. Utbildningsvetenskapliga fakulteten
University of Gothenburg. Faculty of Education
Department of Food and Nutrition, and Sport Science ; Institutionen för kost- och idrottsvetenskap
Fredagen den 20 september 2019, kl. 13.00, Sal BE 036, Institutionen för kost- och idrottsvetenskap, Läroverksgatan 5
Date of defence
978-91-7346-527-4 (pdf )
Gothenburg Studies in Educational Sciences