Had similar problems here in Emsworth where I live. We had a food festival for one weekend a year for four or five years which bought about 70,000 people into what is usually a very quiet village (with pretentions of being a town). Although a great success, it was finally quashed because it mean the people who lived in the centre couldn't get in or our of their homes unless they went out before the roads were closed then had to stay out all day until the roads were reopened and the traders who complained that slthough the festival bought numbers into the centre, they lost out because people were buying from the stalls and traders and not them. Shame really because it was nice to see so many different traders and people but I can understand that some people felt they were in a seige.