9. ELEVATORS, ESCALATORS AND INSIDE STAIRWAYS No person snall smoke in an elevator, an escalator, or on an inside stairway in any building. TAXICABS No person shall smoke in a taxicab, except with The consent of all passengers and the driver of the taxicab. The owner and the operator of a taxicab shall ensure that a sign or signs of the type prescribed by Section 13 of this Bylaw are conspicuously posted and. visible from all seats in the taxicab. BUSES No person shall smoke on a schooi or public bus. SERVICES LINES No person shall smoke in any indoor service line on any premises. SIGNS - Each proprietor of every building or portion of a building which is reguiated by this Bylaw shall ensure that a sign or signs of the Type specified in this Section is posted so as to be clearly visible from ali parts of each building or portion of a building regulated by this Bylaw. For the purpose of Subsection (c) hereof, the "letter height" means the actual height of the letter regardless of whether it is a capital or lower case letter. Tne signs required by this Bylaw shall: Carry the text "No Smoking", in capital or lower case letters or a combination thereof. Consist of two (2) contrasting colours, or if the lettering is to be applied directly to a surface or to be mounted on a clear panel, the lettering shal | contrast to the background cclour. with respect to size of lettering, to be not less Than The following height based upon the maximum viewing distance in direct line of sight for: A. Three (3) metres (10 feet) or less, letter height of 2.5 centimetres (1 inch). 6.1 metres (20 feet) or less, letter height of 5.1 centimetres (2 inches). 12.2 metres (40 feet) or less, letter height of 7.6 centimetres (3 incnes).