What do cyclists need to see to avoid single-bicycle crashes?

  • Soort:Nieuws Fietsberaad
  • Datum:20-04-2012

Award-winning article about increasing cyclist traffic safety& by giving more attention to the visibility of obstacles and pavement markings.


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The number of single-bicycle crash victims is substantial in countries with high levels of cycling. To study the role of visual characteristics of the infrastructure, such as pavement markings, in single-bicycle crashes, a study in two steps was conducted.

In Study 1, a questionnaire study was conducted among bicycle crash victims (n = 734). Logistic regression was used to study the relationship between the crashes and age, light condition, alcohol use, gaze direction and familiarity with the crash scene.

In Study 2, the image degrading and edge detection method (IDED-method) was used to investigate the visual characteristics of 21 of the crash scenes.

The results of the studies indicate that crashes, in which the cyclist collided with a bollard or road narrowing or rode off the road, were related to the visual characteristics of bicycle facilities. Edge markings, especially in curves of bicycle tracks, and improved conspicuity of bollards are recommended.

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What do cyclists need to see to avoid single-bicycle crashes?

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