Where is parking on the left side permitted?

Parking on the left side is permitted specifically on one-way streets that have streetcar tracks. This allowance is made because, in one-way streets, vehicles can be parallel parked against the direction of travel without creating a hazard for oncoming traffic, which does not exist in this scenario. The presence of streetcar tracks is significant; it indicates that vehicles are expected to yield to streetcars operating in that designated lane. Therefore, parking on the left enables cars to be positioned safely without obstructing traffic flow or putting themselves in danger.

On highways and two-way streets, parking regulations generally prioritize safety and often prohibit stopping unless specifically marked. On country roads, the regulations can vary based on local laws, but they typically do not encourage left-side parking either for safety reasons or because they may not have the kind of designated lanes found in urban areas. Thus, the context of street layouts is crucial in determining where parking is permitted.