A lane next to Norwood Green has been blocked by large logs in an attempt to stop the travellers on the green from setting up camp there.
Osterley Lane, which connects Tentelow Lane to Osterley Park, has been the scene of fly tipping in the past and the road has now been closed to stop any vehicles from gaining access.
The lane is a cul-de-sac, which crosses over the M4 before ending at one of the entrances to Osterley Park, is home to a large farm, and people who live near the lane have been concerned about the prospect of caravans being set up at the bottom of it.
A large amount of rubbish has already gathered in the lane, including a large quantity of used toilet roll.
Although the logs are only a temporary measure, Mhairi Maclean, who was one of the organisers of the Village Day which has now been cancelled, believes that Ealing Council needs to implement permanent measures on the green to ensure this incident doesn't happen again.
She said: "When I first moved here 13 years ago there were some travellers that used to visit Glade Lane, and that was subsequently fenced up.
"Norwood Green is very open and that's the way the community likes it, it's the heart of the community.
"I guess the only way would be to put little stumpy fences around the green or to install a bump around it that would prevent vehicles from getting over it.
"Even then it would need a gate to allow the bin lorries and the gardening teams to come in a take care of the green.
"The community is absolutely devastated with what is going on here and groups within the community, especially the elderly, are so intimidated with what is going on.
"We're worried this could drive a stake through the community and we really don't want that."
The travellers on the site recently gave their side of events, stating they would not have moved to the green if they had known that the village day was planned a week later.