"Chris Downs" | Dave Proctor | > As for road knowledge, how about the two drivers (I doubt that they were | > ex-guards) who took SL-2, Melbourne - Sydney Express, to Central Platform | > 24 - why didn't their road knowledge make them stop in advance, once they | > received "one-and-a-half" a signal too early? | > | Green over yellow is an ambiguous aspect (G/Y=1.5?). Yes.