I watch this last night, I did know about it, I understand that the 4x4 drivers have some quite serious financial backing but the protesters aren't so well off. The meeting by Stanage road by Take back the tracks featured last night
http://www.dpfr.org.uk/#news/item/809 was an important one, the bottom section is unwalkable now, I used to cycle this 20 years ago and it was a lovely track.
The track was given the closure order (Chapel gate?) is also terrible. it's so bad that normal 4x4 now find it unpassable and only Monster truck style 4x4's can do it along with bikes
It been quite an issue for a whilse with Houndkirk road being destroyed first by the 4x4 drivers and then by the National park who resurfaced it into an eyesore
http://www.dpfr.org.uk/#news/item/752
I do feel for some of the 4x4 drivers and yes the law is on there side but and I think this is key it was written when 4x4 were virtually unheard of and trials bikes were a new thing. The availability of 4x4 is overwhelming and every one seems to have one now, the tracks weren't designed for that amount of traffic.
Maybe they could pay a toll etc who knows, there is a Landowner near here with a purpose built off road track through his forrest, Not sure how much he charges though?
I've even seen groups of trials bikes coming down the 3peaks route to the aquaduct, I guess the've come up from Dent along the Craven way Wolds track! Is this even a green lane?