In accordance with the provisions of Section 9 of Chapter 89 of the General Laws, the streets or parts of streets listed in Schedule III of this title are through ways.
(Prior revision § 12-48 (part); C.O. 83-52 § 48 (part))
The streets or portions thereof designated in Schedule V of this title and specifically incorporated in this section are declared to be one-way streets and all vehicular traffic shall move on those streets or portions thereof in the direction designated in such Schedule V.
(Prior revision § 12-51; C.O. 83-52 § 48 (part))
A. 
The use and operation of heavy commercial vehicles are restricted on those streets or parts of streets described in Schedule VI of this title, in the manner outlined, and during the period of time set forth therein.
B. 
This section shall not apply to heavy commercial vehicles going to or coming from places upon such streets or adjoining streets or ways to which access cannot otherwise be gained, or to vehicles of municipal departments or public service corporations having emergency work to do on such streets or adjoining streets, or to the U.S. mail vehicles collecting mail on such streets, or to police and fire department vehicles or to ambulances.
C. 
The provisions of this section shall be enforceable against violators only during such times as a sufficient number of official traffic signs are erected at each restricted street.
(Prior revision § 12-53 (part); C.O. 83-52 § 48 (part))
The use and operation of hazardous material transport vehicles, as defined by U.S. Department of Transportation, Federal Highway, Administration, Federal Motor Carrier Safety Regulations, 49 CFR, Parts 350, 383, 387 and 390-397, on certain streets of the city, as described in Schedule VIA of this title, is prohibited unless there is no practicable alternative, as determined by the traffic commission and/or said hazardous material transport vehicle is making a delivery on said restricted streets as evidenced by a bona fide manifest.
Transport vehicles, which contain hazardous materials, shall be operated only over routes prescribed by the traffic commission, which do not go through or near heavily populated areas, places where crowds are assembled or tunnels, narrow streets or alleys. Operating convenience is not a basis for determining whether it is practicable to operate a hazardous materials transport vehicle in accordance with this section. This section does not apply to radioactive materials.
The provisions of this section shall be enforceable against violators only during such times as a sufficient number of official traffic signs are erected at each restricted street.
The fine for violation of the provision of this section shall be three hundred dollars for each offense and shall be enforceable pursuant to this section and/or Chapter 90, Section 18, M.G.L.
(T.C.R. 99-02A, § 2, 1999)