cdneng2 writes "NY Times has an article that New York crosswalk push buttons are actually ineffective. Apparently, New York City deactivated most of the pedestrian buttons long ago with the emergence of computer-controlled traffic signals. From the article, 'More than 2,500 of the 3,250 walk buttons that still exist function essentially as mechanical placebos, city figures show.' Well, apparently New York city isn't the only city like this. I guess the answer lies in the same reason why people press the elevator button more than once."