The location of all bus stops, taxicab stands and service zones shall be specified by the Municipal Council and, in the case of taxicab stands, the Chief of Police with the approval of the Municipal Council, shall designate who may use them as such.
Any person who willfully defaces, injures, moves, obstructs or interferes with any official traffic signs, signals or marking shall be liable to a penalty of $200 for each and every offense.
No driver of any vehicle or of any streetcar shall disobey the instructions of any official traffic control signal, sign, marking, marker or legend unless otherwise directed by a police officer or shall be liable to a penalty of $50 for each and every offense.
A. 
The Director of Public Works is hereby authorized, and as to those signs and signals required hereunder it shall be his duty, to install, remove and maintain all official traffic signs, signals, markings and safety zones. All signs, signals, markings and safety zones shall conform to the standards as prescribed by the MHD.
B. 
Sections 439-10 and 439-11 of Article V, and §§ 439-22 and 439-23 and §§ 439-26 to 439-30 inclusive of Article VIII relating to parking and §§ 439-40 and 439-43 of Article X concerning turning movements and § 439-53 of Article X pertaining to exclusion shall be effective only during such time as official signs are erected and maintained in each block designating the provisions of such sections and located so as to be easily visible to approaching drivers.
C. 
Sections relating to one-way streets shall be effective only during such time as a sufficient number of official signs are erected and maintained at the entrance and each of the exits for each one-way street, so that at least one sign will be clearly visible for a distance of at least 75 feet to drivers approaching such an exit.
No person or corporation shall place, maintain or display upon or in view of any street any unofficial device, sign, signal, curb marking or street marking which purports to be or is an imitation of or resembles an official traffic device, sign, signal, curb marking or street marking or which attempts to direct the movement of traffic or which hides from view any official sign, signal, marking or device and shall be liable to a penalty of $100 for each and every offense. The Chief of Police or his designee is hereby empowered to remove every such prohibited sign, signal, marking or device or cause it to be removed without notice.
For the purpose of trial the Traffic and Transportation Commission may make temporary rules regulating traffic, or test under actual conditions traffic signs, markings, or other devices. No such experimental rules relating to traffic shall remain in effect for a period longer than 30 days.