Until the traffic emergency is terminated by the Director of the Public Works Department, no person shall operate a motor vehicle on any emergency snow route established in this chapter in such manner or condition that such vehicle will become stalled by reason of the fact that the driving wheels of such vehicle are not equipped with tire chains or snow tires. Other tires or devices may be approved and recognized by the Director of the Public Works Department and the Police Department as being satisfactory devices or tires for the maintenance of traction under adverse climatic and street conditions. A list of other tires and devices which are approved by the Director of the Public Works Department and by the Police Department shall be available for inspection at the Police Department and at the office of the Director of the Public Works Department. (Code 1981 § 43-295. Code 1995 § 142-542.)