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Jan 29, 2015 at 0:02 comment added CodeCharming To add to what Mike said, even if pedestrian signals were available everywhere, there would still be people who might not be able to cross the road quickly enough, especially if there are a lot of people crossing the intersection at the same time. These stragglers are often the people most likely to get hit by a car--children, the elderly, disabled, or those with limited mobility. 3-4 seconds might not be enough for them to even react to a signal change, let alone safely cross to the other side.
Jan 1, 2012 at 8:50 comment added Mike L. Flashing green lights are not available, for example, in Germany (but e.g. in Austria).
Dec 31, 2011 at 1:07 comment added djeidot I don't follow that. Pedestrians have flashing green lights warning that it's going to turn to red, and the red light for pedestrians shows up 3-4 seconds before the green light for cars shows. Plus, in most cases pedestrians can't see the traffic lights for cars.
Dec 30, 2011 at 23:27 history answered RSG CC BY-SA 3.0