Final answer:
One cannot park near or opposite a street excavation if it would obstruct traffic, as it is typically against parking regulations to create an obstruction or hazard.
Step-by-step explanation:
No, someone cannot park beside or opposite a street excavation or obstruction when such parking would obstruct traffic. Parking regulations typically prohibit vehicles from stopping, standing, or parking where they would obstruct traffic flow, create a hazard, or when emergency signs are posted prohibiting parking. Generally, safety rules are implemented to ensure that all passersby, including pedestrians, cyclists, and other motorists, have a clear path of passage around an excavation site. This not only aids in maintaining traffic efficiency but also promotes safety near potentially hazardous areas.