City Clerk William Campbell recently established a committee to help develop recommendations for Mayor Scott D. Galvin and the City Council on possible changes to the city’s polling locations. The eight-member Polling Place Review Committee is chaired by Campbell, who as city clerk is Woburn’s chief election official. Campbell said the city has 14 voting precincts that over the years have been consolidated into nine polling locations. He said the new panel will explore what impact more consolidation of the polling places would have on costs and the convenience of voting. Any changes would not take effect until after this election year, and, depending on their scope, some or all may require special legislation, Campbell said.