The first road protests popped up in the 1970s.By the 1990s they were media events, with protesters camped in tree-houses or warrens inspired by the tunnels of the Viet Cong.

• 最早的公路抗议出现在上世纪70年代，90十年代，发展到了中等规模，抗议者们受越共隧道的启发，在树上小屋或者狭窄街区驻扎安营。