Homogenization of Driving Conditions When Incoming Wind Angles and Intensity Change Significantly

Bora is local, changeable wind that significantly decreases traffic security on the Zagreb-Split motorway on the south side of the Velebit Mountain. On the road section tunnel Sv. Rok - knot Posedarje, the wind velocity increases from near zero in tunnels up to wind gusts of 69 m/s near the bridges. The incoming wind direction varies from parallel to perpendicular to the road axes. As a result of such meteorological conditions, some incidents occur. For that reason the motorway has often been closed to certain categories of vehicle, or even to all traffic, during periods of strong wind. The goal of this project was to design windbreaks that would decrease wind force and moment acting on the vehicles in such a way that the side wind does not exceed the prescribed value. In this paper a new homogenization of driving conditions when wind direction and intensity change significantly was developed. Four different types of windbreaks are proposed, based on the results of computer simulation and wind tunnel tests. The proposed windbreaks will significantly increase safety on the motorway during strong Bora.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 613-621
  • Monograph Title: Safety and Security Engineering

Subject/Index Terms

Filing Info

  • Accession Number: 01007126
  • Record Type: Publication
  • ISBN: 1845640195
  • Files: TRIS
  • Created Date: Nov 9 2005 12:12PM