Ottawa : Règlement no 2017-301, art. 123(a) — Traffic and Parking By-law

No person shall park a motor vehicle or permit a motor vehicle to remain parked on a municipal parking lot:

• so as to obstruct a motor vehicle in the use of any aisle or laneway,
• (b) in such a position that will prevent the convenient removal of any other motor vehicle previously parked or standing,
• (c) so as to prevent or impede the ingress to or egress from a parking space, or
• (d) in an area that is a pedestrian walkway.