Colors and arrow indications in traffic control signals shall have the commands ascribed to them in this section and no other meanings, and every driver of a vehicle, railway car or other conveyance shall comply therewith except when otherwise directed by an officer or by a lawful traffic-regulating sign (other than a stop sign), signal or device or as provided in § 250-33B of this article. In no case shall a driver enter or proceed through an intersection without due regard to the safety of other persons within the intersection, regardless of what indications may be given by traffic control signals.
A. 
Green. While the green lens is illuminated, drivers facing the signal may proceed through the intersection but shall yield the right-of-way to pedestrians and vehicles lawfully within a crosswalk or the intersection at the time such signal was actuated.
B. 
Right, left and vertical green arrows. When a right green arrow is illuminated, drivers facing said signal may turn right. When a left green arrow is illuminated, drivers facing said signal may turn left. When a vertical green arrow is illuminated, drivers facing said signal may go straight ahead. When a green arrow is exhibited together with a red or a yellow lens, drivers may enter the intersection to make the movement permitted by the arrow but shall yield the right-of-way to vehicles and pedestrians proceeding from another direction on a green indication.
C. 
Yellow. While the yellow lens is illuminated, waiting drivers shall not proceed and any driver approaching the intersection or a marked stop line shall stop at such point unless so close to the intersection that a stop cannot be made in safety; provided, however, that if a green arrow is illuminated at the same time, drivers may enter the intersection to make the movement permitted by the arrow.
D. 
Red. While the red lens is illuminated, drivers facing the signal shall stop outside of the intersection or at such point as may be clearly marked by a sign or line; provided, however, that if a green arrow is illuminated at the same time, drivers may enter the intersection to make the movement permitted by such arrow.
E. 
Red and yellow. While the red and yellow lenses are illuminated together, drivers shall not enter the intersection, and during such time the intersection shall be reserved for the exclusive use of pedestrians.
F. 
Flashing red. When a red lens is illuminated in a traffic control signal by rapid intermittent flashes and its use has been specifically authorized by the Department of Transportation of the Commonwealth of Massachusetts, drivers shall stop before entering the nearer line of crosswalk of the street intersection or at a stop line when marked, and the right to proceed shall then be governed by provisions of MGL c. 89, § 8.
[Amended during codification]
G. 
Flashing yellow. A flashing yellow lens shall indicate the presence of a hazard and drivers may proceed only with caution.
H. 
Flashing green. A flashing green lens shall indicate an intersection or pedestrian crosswalk in use or subject to use by entering or crossing traffic. Drivers may proceed only with caution and shall be prepared to comply with a change in the signal to a red and/or yellow indication.
Upon such roadways as are divided by a parkway, grass plot, reservation, viaduct, subway or by any structure or area, drivers shall keep to the right of such a division except when otherwise directed by an officer, signs, signals or markings.
A. 
No operator shall enter upon the road surface of any street or highway or section thereof when, by reason of construction, surface treatment, maintenance or the like or because of some unprotected hazard, such road surface is closed to travel and one or more signs, lights or signals have been erected to indicate that all or part of the road surface of the street or highway is not to be used, or when so advised by an officer, watchman, member of a street or highway crew or employee of the Town, either audibly or by signals.
B. 
The Director of Public Works may close temporarily any street or highway or section thereof for the purpose of repair, construction and maintenance of the street or highway or the utilities within it or because of some unprotected hazard and shall cause to be erected one or more signs, lights or signals to indicate that all or part of the road surface of the street or highway is not to be used. Officers, watchmen, members of a street or highway crew or employees of the Town may be used instead of or to supplement signs, lights or signals.
A funeral composed entirely or partly of a procession of vehicles shall be identified as such by means of black or white pennants bearing a purple symbol attached to all vehicles.
A. 
It shall be the duty of each driver in a funeral or other procession to keep as near to the right edge of the roadway as is feasible and to follow the vehicle ahead as closely as is practicable and safe.
B. 
At an intersection where a traffic control signal is operating, the driver of the first vehicle in a funeral or other procession shall be the only one required to stop for a red and/or yellow indication.
C. 
At an intersection where a lawful stop or yield sign exists, the driver of the first vehicle in a funeral or other procession shall be the only one required to stop before proceeding through the intersection.
Whenever traffic signs are erected or warning lights are displayed in or adjacent to a highway to notify of the presence of workers and equipment in such highway, every motorist shall regulate the speed of his vehicle in a manner and to a degree consistent with the particular condition.
[Amended during codification]
Every driver of a vehicle, railway car or other conveyance approaching an intersection of ways where there exists facing him an official sign bearing the word "stop" or a flashing red signal indication, said sign or signal having, apart from these rules and orders, the written approval of the Department of Transportation, Commonwealth of Massachusetts, and such approval being in effect, shall, before proceeding through the intersection, bring such vehicle, railway car or other conveyance to a complete stop at such point as may be clearly marked by a sign or line, or if a point is not marked, then at the nearer line of crosswalk of the intersection. In the case of a line of two or more vehicles approaching such stop sign or flashing red signal indication, the drivers of the second and third vehicles in any group shall not be required to stop more than once before proceeding through the intersection. This section shall not apply when the traffic is otherwise directed by an officer or by a lawful traffic-regulating sign, signal or device or as provided in § 250-33C of this article. In accordance with the foregoing, the erection and maintenance of official stop signs or flashing red signal indications are authorized so as to face the streets or intersections as provided in Schedule VII of these rules and regulations, to which reference is made and said Schedule VII is hereby specifically incorporated into this section.[1]
[1]
Editor's Note: See § 250-57.
No operator shall back or turn a vehicle so as to proceed in the direction opposite that in which said vehicle is headed or traveling on certain designated streets as per Schedule VIII hereto appended, to which reference is made and which Schedule VIII is specifically incorporated into this section.[1]
[1]
Editor's Note: See § 250-58.
[Added 6-5-1989]
A. 
The use and operation of heavy commercial vehicles, having a carrying capacity of more than 2 1/2 tons, are hereby restricted on the streets, or parts thereof, named in Schedule IX (Article XII, § 250-59) and in the manner outlined and during the period of time set forth.
B. 
Exemptions. Subsection A of this section shall not apply to heavy commercial vehicles going to or coming from places upon said streets for the purpose of making deliveries of goods, materials or merchandise to, or similar collections from, abutting land or buildings or adjoining streets or ways to which access cannot otherwise be gained or to vehicles used in connection with the construction, maintenance and repair of said streets or public utilities therein or to federal, state, municipal or public service corporation owned vehicles.
C. 
Violations and penalties. The penalty for violation of this section shall not exceed $20 for the first offense and each successive offense.
D. 
The enforcement officer of this section shall be the Police Department.