Vehicle entering highway from private road, driveway, alley or building ACTIVE

The driver of a vehicle about to enter or cross a highway from a private road, driveway, alley or building, shall stop such vehicle immediately prior to driving onto a sidewalk or onto the sidewalk area extending across any alleyway or driveway, and shall yield the right of way to any pedestrian as may be necessary to avoid collision, and shall yield the right of way to all approaching vehicles so close as to constitute an immediate hazard.