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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>So, Ian Sergeant has presented reasoning why we should not pursue more complicated schemes for applying traffic lights to intersections of dual carriageways – fair enough.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>This brings me back to the incident that triggered me to start this thread: there are several intersections of dual carriageways in Perth CBD where only 1 of the 4 nodes are marked with traffic lights, and this struck me as wrong, and hence I asked what was the correct and accepted method.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>If we are to reject the more complex solution of adding traffic lights one node back from the interesting nodes (as implemented in Melbourne CBD, and reasoned against by Ian), surely we should be marking all 4 intersection nodes as having traffic lights ?? (not just one).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>what does everyone think ?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Ian Steer<o:p></o:p></span></p></div></body></html>