3. Section 4 of the Principal Act is amended—
(a) by omitting the definition of “bicycle path”;
(b) by omitting “driving a vehicle and includes any person riding a bicycle” from the definition of “driver” and substituting “driving or riding a vehicle”;
(c) by inserting “ ‘pedestrian', ‘pedestrian crossing',” after “ ‘off-street parking area',” in the definition of “inspector” and other expressions;
(d) by omitting “and ‘traffic sign' ” from the definition of “inspector” and other expressions and substituting “, ‘traffic sign' and ‘wheelchair' ”;
(e) by omitting the definition of “pedestrian”; and
(f) by omitting the definition of “vehicle” and substituting the following definition:
“ ‘vehicle' means—
(a) a bicycle; and
(b) a carriage drawn by an animal.”.