Mo. Rev. Stat. § 300.505: City traffic engineer to designate public carrier stops and stands.

The city traffic engineer is hereby authorized and required to establish bus stops, bus stands, taxicab stands and stands for other passenger common carrier motor vehicles on such public streets in such places and in such number as he shall determine to be of the greatest benefit and convenience to the public, and every such bus stop, bus stand, taxicab stand, or other stand shall be designated by appropriate signs.