All traffic-control devices including signs, signals and markings (pavement and/or curb) installed or used for the purpose of directing and controlling traffic within the city shall conform with the manual and specifications adopted by the state transportation commission as provided in V.T.C.A., Transportation Code, section 544.001. All signs, signals and markings erected or used by the town must conform to the manual and specifications adopted under V.T.C.A., Transportation Code, section 544.001. All existing traffic-control devices and those erected in the future by the city being consistent with the manual and specifications, state law and this section shall be official traffic-control devices.
(Ordinance adopting Code)
The chief of police shall place and maintain traffic-control signs, signals and devices when and as required under this chapter to make effective the provisions of this chapter, and may place and maintain such additional traffic-control devices as he may deem necessary to regulate traffic under this chapter or under state law, or to guide or warn traffic. It shall be the duty of the chief of police to supervise the installation and proper timing and maintenance of traffic-control devices.
(2001 Code, sec. 70.41)
The chief of police is hereby authorized:
(1) 
To designate and maintain, by appropriate devices, marks or lines upon the surface of the roadway, crosswalks at any intersection where, in his opinion, there is particular danger to pedestrians crossing the roadway, and at such other places as he may deem necessary.
(2) 
To establish safety zones of such kind and character and at such places as he may deem necessary for the protection of pedestrians.
(3) 
To mark lanes for traffic on street pavements in such places as he may deem advisable, consistent with this chapter and other traffic ordinances of this city.
(2001 Code, sec. 70.42)
The driver of any vehicle shall obey the instructions of any official traffic-control device applicable thereto placed in accordance with this chapter and other traffic ordinances of this city, unless otherwise directed by a police officer, subject to the exceptions granted the driver of an authorized emergency vehicle.
(2001 Code, sec. 70.43)
No provision of this chapter for which signs are required shall be enforced against an alleged violator if, at the time and place of the alleged violation, an official sign is not in proper position and sufficiently legible to be seen by an ordinarily observant person. Whenever a particular section does not state that signs are required, such section shall be effective even though no signs are erected or in place.
(2001 Code, sec. 70.44)
The chief of police, as authorized by the city council from time to time, shall designate intersections at which traffic shall be controlled by electric traffic-control signals or lights and shall cause such signals or lights to be installed and maintained at such intersections.
(2001 Code, sec. 70.45)
Whenever traffic is controlled by traffic-control signals exhibiting the word “Go,” “Caution” or “Stop,” or exhibiting different colored lights successively one at a time, or with arrows, the following colors only shall be used and such terms and lights shall indicate and apply to drivers of vehicles and pedestrians as follows:
(1) 
Green alone or “Go”.
(A) 
Vehicular traffic facing the signal may proceed straight through or turn right or left, unless a sign at such place prohibits either such turn. But vehicular traffic, including vehicles turning right or left, shall yield the right-of-way to other vehicles and to pedestrians lawfully within the intersection or an adjacent crosswalk at the time such signal is exhibited.
(B) 
Pedestrians facing the signal may proceed across the roadway within any marked or unmarked crosswalk.
(2) 
Yellow alone or “Caution” when shown following green or “Go”.
(A) 
Vehicular traffic facing the signal is thereby warned that the red or “Stop” signal will be exhibited immediately thereafter and such vehicular traffic shall not enter or be crossing the intersection when the red or “Stop” signal is exhibited.
(B) 
Pedestrians facing such signal are thereby advised that there is insufficient time to cross the roadway, and any pedestrian then starting to cross shall yield the right-of-way to all vehicles.
(3) 
Red alone or “Stop”.
(A) 
Vehicular traffic facing the signal shall stop before entering the crosswalk on the near side of the intersection or, if none, then before entering the intersection, and shall remain standing until green or “Go” is shown alone; provided that, after stopping and yielding to all pedestrians and vehicles, the driver of a vehicle may enter the intersection for the purpose of making a right turn only, if a sign is in place indicating that such turn can be made.
(B) 
No pedestrian facing such signal shall enter the roadway unless he can do so safely and without interfering with any vehicular traffic.
(4) 
Red with green arrow.
(A) 
Vehicular traffic facing such signal may cautiously enter the intersection only to make the movement indicated by such arrow, but shall yield the right-of-way to pedestrians lawfully within a crosswalk and to other traffic lawfully using the intersection.
(B) 
No pedestrian facing such signal shall enter the roadway unless he can do so safely and without interfering with any vehicular traffic.
(2001 Code, sec. 70.46)
Whenever special pedestrian-control signals exhibiting the word “Walk” or “Wait” are in place, such signals shall indicate as follows:
(1) 
“Walk”.
Pedestrians facing such signal may proceed across the roadway in the direction of the signal and shall be given the right-of-way by the drivers of all vehicles.
(2) 
“Wait”.
No pedestrian shall start to cross the roadway in the direction of such signal, but any pedestrian who has partially completed his crossing on the walk signal shall proceed to a sidewalk or safety zone while the wait signal is showing.
(2001 Code, sec. 70.47)
Whenever flashing red or yellow signals are used they shall require obedience by vehicular traffic as follows:
(1) 
Flashing red (stop signal).
When a red lens is illuminated by rapid intermittent flashes, drivers of vehicles shall stop before entering the nearest crosswalk at an intersection or at a limit line when marked, and the right to proceed shall be subject to the rules applicable after making a stop at a stop sign.
(2) 
Flashing yellow (caution signal).
When a yellow lens is illuminated by rapid intermittent flashes, drivers of vehicles may proceed through the intersection or past such signal only with caution.
(2001 Code, sec. 70.48)
All traffic-control signs, signals, devices, and markings placed or erected prior to the adoption of this code by the police department and in use for the purpose of regulating, warning or guiding traffic are hereby affirmed, ratified and declared to be official traffic-control devices, provided such traffic-control devices are not inconsistent with the provisions of this chapter or state law.
(2001 Code, sec. 70.49)
(a) 
No person shall place, maintain or display upon or in view of any road, street or highway any 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 signal or sign, and no person shall place or maintain nor shall any public authority permit upon any highway or street any traffic signal or sign bearing thereon any commercial advertising. This shall not be deemed to prohibit the erection, upon private property adjacent to streets or highways, of signs giving useful directional information and of a type that cannot be mistaken for official signals.
(b) 
Every such prohibited sign, signal or marking is hereby declared to be a public nuisance and the city is hereby empowered to remove the same or cause them to be removed without notice.
(2001 Code, sec. 70.50)
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 inscription, shield or insignia thereon or any part thereof.
(2001 Code, sec. 70.51)