To block the road I live on so people can't park there?

[namechangedpurelyforthis]

As the thread name suggests... I live on a private road. It's near a school. Parents park there all the time, sometimes on double yellows. They block our driveways and limit our access. Where would I legally stand if myself and other residents block the end of the road one day to block the cars in to send them the message that we won't put up with it any more?

@TuckMyWin I know it's February but had to reply to your comment. The school you were talking about there before the houses, then said the roads private and owners pay for upkeep of road, then regardless if school goers park thoughtfully or not , you can't expect to use their road and not contribute to its upkeep. If I lived there anyone parking using said road without permission or living there gets fined. Totally fair.