Before and after study methodology was developed and applied to the effect on bicyclists' safety of raising bicycle crossings by 3-12 cm. Four junctions along bicycle routes, which were reconstructed in this way, were studied in detail in Gothenburg. Extensive bicycle flow measurements were taken before and after the reconstruction of the two sites which had bicycle paths in the before situation as well. The results show that the reconstructed - and substantially improved - paths attracted more than 50% more bicyclists, and that the safety per bicyclist was improved by approximately 20% due to the increase in cycle flow and with an additional 10-30% due to the substantially improved lay-out. However, the increased bicyclist volume meant that the total number of reported bicycle accidents grew. The change in risk was estimated using three different methods: according to surveys of bicyclists and experts respectively, and according to a quantitative expert model. The three methods have comparatively similar results.

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  • Corporate Authors:

    PTRC Education and Research Services Limited

    Glenthorne House, Hammersmith Grove
    London W6OL9,   England 
  • Authors:
    • LEDEN, L
  • Conference:
  • Publication Date: 1998


  • English

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Filing Info

  • Accession Number: 00767331
  • Record Type: Publication
  • Report/Paper Numbers: VTI konferens 9A part 8
  • Files: TRIS, ATRI
  • Created Date: Aug 4 1999 12:00AM