000022498 001__ 22498
000022498 005__ 20170724144652.0
000022498 04107 $$aeng
000022498 046__ $$k2017-07-04
000022498 100__ $$aBaker, Christopher
000022498 24500 $$aThe safety of pedestrians, cyclists and high sided vehicles in urban areas in windy conditions

000022498 24630 $$n7.$$p7th European and African Conference on Wind Engineering 
000022498 260__ $$bl'Association pour l'Ingénierie du Vent
000022498 506__ $$arestricted
000022498 520__ $$2eng$$aIn the planning process for high rise buildings, it is common practice to carry out physical or numerical simulations of the wind flow around such buildings, in order to establish the acceptability or otherwise of these wind conditions for a range of pedestrian activities such as sitting, slow walking, rapid walking etc. It is less common to assess the wind conditions in terms of pedestrian safety in high winds, and the safety of cyclists and light high sided vehicles is never usually considered. The need for such considerations has become tragically obvious in a recent incident in Leeds in the UK, where a pedestrian was killed after a lorry blew over due to winds around a new high rise structure. When pedestrian safety is considered, this is usually in terms of a simple wind speed criterion that does not take into account human behaviour and does not allow for a proper risk analysis. This paper reports on ongoing work on a project that will consider these issues with a view to establishing a robust methodology for calculating the risk of a pedestrian, cyclist or high sided vehicle accident in high wind conditions around high rise buildings. Full scale measurements are being carried out around a high rise building on the University of Birmingham campus to measure the turbulent nature of the flow around such buildings, since it is these highly turbulent flows that are of relevance to the issue of safety rather than the mean wind flows. Wind tunnel tests and CFD calculations are also underway for the same building to assess the adequacy of these techniques for predicting the highly turbulent flows of relevance to the problem under discussion. Trials will then be carried out using instrumented volunteers of a range of age and size, who will walk or cycle around the structure during windy periods, and their behaviour will be assessed both quantitatively and qualitatively, in order to develop probability distributions of the wind speed at which incipient instability of pedestrians occurs. In addition measurements will be made of the cross wind forces on scale models of typical high rise vehicles using the University of Birmingham moving model TRAIN rig, with highly turbulent cross wind conditions, again to develop probability distributions of wind speeds for incipient instability. The probability distributions thus obtained will then be used, with wind speed probability distributions, to develop a calculation methodology to determine the variation of accident risk around high rise structures.

000022498 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022498 653__ $$a

000022498 7112_ $$a7th European and African Conference on Wind Engineering$$cLiège, BE$$d2017-07-04 / 2017-07-07$$gEACWE2017
000022498 720__ $$aBaker, Christopher$$iFlynn, Dominic$$iJesson, Mike$$iSerling, Mark$$iHemida, Hassan$$iQuinn, Andrew
000022498 8560_ $$ffischerc@itam.cas.cz
000022498 8564_ $$s1780022$$uhttps://invenio.itam.cas.cz/record/22498/files/7.pdf$$yOriginal version of the author's contribution in proceedings, id 7, section .
000022498 962__ $$r22493
000022498 980__ $$aPAPER