?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=The+Effect+of+Rise+Time+on+the+Detection+of+Traffic+Signals&rft.creator=Bierman%2C+A.&rft.creator=Boyce%2C+P.&rft.creator=Hunter%2C+C.&rft.creator=Bullough%2C+J.&rft.creator=Figueiro%2C+M.&rft.creator=Conway%2C+K.&rft.subject=Psychophysics&rft.description=The+rise+time+of+a+light+source+is+the+time+it+takes+to+reach+full+light+output+after+application+of+power.+Different+light+sources+used+in+traffic+signals+have+different+minimum+rise+times.+LEDs+have+minimum+rise+times+in+the+order+of+nanoseconds%2C+while+incandescent+lamps+have+minimum+rise+times+in+the+order+of+tens+of+milliseconds.+Whether+these+rise+times+are+achieved+in+practice+depends+on+the+characteristics+of+the+power+supply+applied+to+the+light+source.+Measurements+of+the+rise+times+of+actual+traffic+signals+showed+that+LED+traffic+signals+had+rise+times+of+approximately+20+ms+while+incandescent+traffic+signals+had+a+range+of+rise+times+from+90+ms+to+200+ms.+This+study+was+undertaken+to+determine+if+such+dfferences+in+rise+times+influence+detection+of+the+traffic+signal%2C+measured+by+the+reaction+time+to+onset+of+the+traffic+signal+and+percentage+of+missed+signals.&rft.date=2000-06&rft.type=Departmental+Technical+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F3852%2F1%2Frisetime00.pdf&rft.identifier=++Bierman%2C+A.+and+Boyce%2C+P.+and+Hunter%2C+C.+and+Bullough%2C+J.+and+Figueiro%2C+M.+and+Conway%2C+K.++(2000)+The+Effect+of+Rise+Time+on+the+Detection+of+Traffic+Signals.++%5BDepartmental+Technical+Report%5D++++(Unpublished)++&rft.relation=http%3A%2F%2Fcogprints.org%2F3852%2F