(a) An operator may not pass to the left or drive on the left side of a streetcar moving in the same direction, even if the streetcar is temporarily at rest, unless the operator:
(1) is directed to do so by a police officer;
(2) is on a one-way street; or
(3) is on a street on which the location of the tracks prevents compliance with this section.
(b) An operator when lawfully passing to the left of a streetcar that has stopped to receive or discharge a passenger:
(1) shall reduce speed;
(2) may proceed only on exercising due caution for pedestrians; and
(3) shall accord a pedestrian the right-of-way as required by this subtitle.
Official text of the Texas Transportation Code as published by the Texas Legislative Council.