My boss was driving on Avenue Road, and a pedestrian dashed across the lanes of oncoming traffic and blundered into the left side of my boss' car, denting a door. My boss stopped, helped the fellow up, and flagged down a cop who chanced to arrive when needed. The pedestrian was charged with an offence, and promised to pay for the damage he had done.
In fact, he DID pay, so my boss went and testified at the hearing. Because the pedestrian had made recompense for the damage, the magistrate suspended the fine and that was that.
So, yes, the HTA applies to pedestrians ON A HIGHWAY.
Pedestrians on a sidewalk (but not subject to a red light aimed their way) or in a parking lot are SUPREME, and every motorist (save emergency vehicles) must yield to all pedestrians all the time, as with pedestrians crossing with the light, or where traffic must stop for a STOP sign, or in a crosswalk. STOP signs in a parking lot, or painted paths to suggest where pedestrians cross, all are meaningless and unenforceable. When I am walking in a parking lot, I take great care, and I generally carry something that can do expensive damage to a car or jam the spokes of a bicycle or motorcycle. On occasion, this damage indeed happens, but it ain't my fault, and I don't stop to argue.
