All traffic control signs, signals and devices shall conform
to the manual and specifications approved by the State Highways and
Transportation Commission or resolution adopted by the Board of Aldermen
of the City. All signs or signals required hereunder for a particular
purpose shall so far as practicable be uniform as to type and location
throughout the City. All traffic control devices so erected and not
inconsistent with the provisions of this Title shall be official traffic
control devices.
The driver of any vehicle shall obey the instructions of any
official traffic control device applicable thereto placed in accordance
with the provisions of this Title, unless otherwise directed by a
traffic or Police Officer, subject to the exceptions granted the driver
of an authorized emergency vehicle in this Title.
No provision of this Title for which official traffic control
devices are required shall be enforced against an alleged violator
if at the time and place of the alleged violation an official device
is not in proper position and sufficiently legible to be seen by an
ordinarily observant person. Whenever a particular Section does not
state that official traffic control devices are required, such Section
shall be effective even though no devices are erected or in place.
No person shall place, maintain or display upon or in view of
any highway an unauthorized sign, signal, marking or device which
purports to be or is an imitation of or resembles an official traffic
control device or railroad sign or signal, or which attempts to direct
the movement of traffic, or which hides from view or interferes with
the effectiveness of any official traffic control device or any railroad
sign or signal.
No person shall without lawful authority attempt to or in fact
alter, deface, injure, knock down or remove any official traffic control
device or any railroad sign or signal or any inscription, shield or
insignia thereon or any other part thereof.