根据诺丁汉 Dropped Kerb 的规定，房主可以合法地对未经授权的车道掉头采取行动。 Homeowners can legally take action against unauthorized driveway turnarounds, per Dropped Kerb Nottingham.

根据诺丁汉 Dropped Kerb 的规定，未经允许在别人的车道上掉头一般是违法的。 It's generally illegal for someone to turn around in someone else's driveway without permission, according to Dropped Kerb Nottingham. 房主可以对未经同​​意这样做的人采取法律行动。 Homeowners can take legal action against those who do so without consent. 要阻止某人使用您的车道，请查阅当地法律和准则，以确保您没有侵犯他们的财产权。 To stop someone from using your driveway, consult local laws and guidelines to ensure you're not infringing on their property rights.