You should take a look at the history of regulation of taxi's in New York. It had less to do with safety or clarity than protecting exiting cabbies and from com

You should take a look at the history of regulation of taxi's in New York. It had less to do with safety or clarity than protecting exiting cabbies and from competition during the depression. http://www.nyc.gov/html/media/totweb/taxioftomorrow_history_regulationandprosperity.html http://www.nyc.gov/html/media/totweb/taxioftomorrow_history_...