Analysis of articles about using of pedestrian islands showed that different countries have their own regulations on parameters of pedestrian islands (shape, length, width, etc.), as well as their conditions of use (when you must to apply pedestrian islands). I would like to understand why exactly such rules a have taken place. Could some body give me the relevant literature?
Dear Sergei, thank you for an interesting question. I also sometimes ask myself why are some standards/guidelines applied just the way they are... I think generally they should reflect safety aspects, but these may sometimes be hardly quantifiable... This is why they are often based on expert judgment... or guidelines/standards from different countries (for example Austria or Germany - in Czech case).
Some interesting reading - https://www.researchgate.net/publication/259969502_Safety_in_Geometric_Design_Paper_I
Conference Paper Safety in Geometric Design, Paper I
I seem to follow the same questions as Jiri... I have reviewed similar technical design recommendations in the past. Often it comes down to first principles engineering. E.g. the engineering folklore says that width of pedestrian crossing refuge (island) in Australia was set by the typical length of a bicycle + 1 foot of margin on either side. SO that's a safety standard of sorts, right?
Sergei,
Attached is a good presentation showing principles of island designing:
http://www.pedbikeinfo.org/pdf/Webinar_PBIC_FHWA_053012.pdf
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