When is it acceptable to park on the right-hand side of the road?

Parking on the right-hand side of the road is acceptable on a one-way street because, in this scenario, traffic flows in one direction, and there are no vehicles coming from the opposite direction that could create a hazard. This allows you to park safely without interfering with oncoming traffic. On one-way streets, vehicles are permitted to park on either side of the road, assuming it does not conflict with local parking regulations and signage.

In contrast, parking on the right side of a two-way street could lead to dangerous situations as drivers traveling in opposite directions would have to navigate around parked vehicles. This could lead to accidents or obstruction of traffic. Other options consider situations where parking might not be safe or legal, making the one-way street the only condition where parking on the right-hand side is appropriate and encouraged.