Umlaufsperren im Spannungsfeld zwischen Sicherheit und Barrierefreiheit

摘要

Staggered barriers are structural additions at unsecured level crossings. Their purpose is to increase the awareness on the part of pedestrians and cyclists and to exclude motorised traffic. However, the existing types are controversial, because they are difficult to negotiate for mobility-impaired people with large electric wheelchairs or mobility scooters, and for cyclists with trailers. The tests reported on in the article were designed to analyse the usability of staggered barriers as well as the behaviour of pedestrians and cyclists. The results showed that the gaze behaviour of cyclists was less secure than that of pedestrians, which was attributable above all to the difficulty in negotiating the barriers. Based on the test findings, recommendations are being drawn up regarding the future design of staggered barriers and criteria for their deployment.%Umlaufsperren (Abb. 1) sind bauliche Zusatzeinrichtungen an nichttechnisch gesicherten Bahnüberg?ngen (Bü) von Fu?-und Radwegen. Die Eisenbahn-Bau- und Betriebsordnung fordert solche oder ?hnlich wirkende Einrichtungen auf Hauptbahnen und erlaubt sie auf Nebenbahnen, ohne n?here Aussagen zur Beschaffenheit zu treffen [ 1 ]. Laut amtlicher Begründung sollen Umlaufsperren die Aufmerksamkeit der Wegbenutzer erh?hen [2].