Blockades can consist of soft blockades (human barricades, such as forming a line and linking arms) or hard blockades (using gear such as chains, U-locks, lock-boxes, tripods or vehicles.) Blockades can involve one person or thousands of people.
An Example
In the 1980’s and 1990’s, the Friends of Clayoquot Sound successfully protected the old growth forests of Canada’s west coast from logging by organizing blockades.