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When red lights look yellow

Last updated on 14 August 2014 5:00

After several complaints made by train drivers, a study was performed with the aim of determining whether red signals (associated with ' danger' and 'stop') can appear yellow from distances of 900m plus away - when viewed through progressive-addition lenses. A laboratory study was carried out to uncover the extent...

Author(s): Wood Joanne M.;Atchinson David A.;Chaparro Alex

Organisation(s): Queensland University of Technology ; Wichita State University ;

2005

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