cab rank rule

Word Origin for cab rank rule

C20: from the idea of a queue of taxis, each taking the first customer who comes along
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012