Multilane roundabouts are generally viewed by experienced cyclists as a reasonably hazardous element of the road network to be avoided if conveniently possible. Literature review, analysis of crash statistics in Auckland and a survey of cyclists confirmed the original focus of this research, which was to design a low-speed multilane roundabout for on-road cyclists. This should substantially treat the critical ‘entering vehicle versus circulating cyclist’ crash type, and is anticipated will also address roundabout exits which is the other main safety issue of concern to bike riders. Good street lighting is also imperative, as nighttime crashes comprise a significant proportion of Auckland cyclist crashes at these types of junctions. The outcome of this research project is the Cyclist Roundabout, or “C” Roundabout, which requires a narrow roundabout entry that relies on larger vehicles to straddle both entry lanes. The “C” Roundabout as shown in this report is a design that may not be suitable for every intersection situation but is another tool at the traffic engineer’s disposal. (Author/publisher) For the covering entry of this conference, please see ITRD abstract no. E213684.
Samenvatting