Section 9. (1) The operator of a vehicle shall yield the right of way, slowing down or stopping, if need be, to so yield to any pedestrian crossing any street or roadway within a crosswalk when the pedestrian is upon the half of the roadway upon which the vehicle is traveling, or when the pedestrian is approaching so closely from the opposite half of the roadway as to be in danger; but no pedestrian shall suddenly leave a curb or other place of safety and walk or run into the path of a vehicle which is so close that it is impossible for the driver to yield.

(2) A pedestrian crossing a roadway at any point other than within a marked crosswalk or within an unmarked crosswalk at an intersection shall yield the right of way to all vehicles upon the street or roadway.

(3) Pedestrians on a street or roadway where a sidewalk is provided shall proceed upon such sidewalk. Pedestrians upon a street or roadway where no sidewalk is provided shall proceed on the extreme lefthand side of the roadway and upon meeting an oncoming vehicle shall step to their left and clear off the street or roadway.