“After some public discussion about this, I got an email from a high school friend who said, ‘Please don’t do this, it’s one of the few advantages you have as a native New Yorker, is you can decipher the off-duty sytem, and that gives me an edge over the newcomers,” said David Yassky, the taxi commissioner. “Which, I again understood where he was coming from, but I didn’t feel like that was a strong reason for retaining it.”

– The end of New York’s confusing rooftop taxi-light system is near | Capital New York