Section 300.420 - Signs or markings indicating angle parking1. The city traffic engineer shall determine upon what streets angle parking shall be permitted and shall mark or sign such streets but such angle parking shall not be indicated upon any federal-aid or state highway within the city unless the state highways and transportation commission has determined by resolution or order entered in its minutes that the roadway is of sufficient width to permit angle parking without interfering with the free movement of traffic.2. Angle parking shall not be indicated or permitted at any place where passing traffic would thereby be caused or required to drive upon the left side of the street or upon any streetcar tracks.