I see - even though without calling them any names, my post was pulled.
I'll try again...
To answer the question - No.
To relay a personal experience...
Overnight about 15 years ago, a dozen or so caravans arrived at the rugby club I'm a member of, and it took about a fortnight to get rid of them.
In the fortnight they were there, the club had to close (so loss of income), the local crime rate increased, the pubs in the vicinity had to close due to the trouble they caused, local shops suffered thefts and intimidation...and these are just the things I knew about.
When they eventually left, the mess they left behind was simply staggering, including piles of dirty nappies; it took volunteers ages to clear up the mess, and if memory serves it took about half a dozen skips. It took months for the churned-up pitches to get back to normal.
Owners of open spaces, including local authorities, should do all in their power to hinder travellers from setting-up camp.