MANCHESTER, England — Striking members of the Rail, Maritime and Transport Workers union were joined on picket lines by disability rights campaigners and other trade unionists in many parts of the country during one-day strikes by 20,000 rail workers on July 20, 22 and 29. Weeks before, rail bosses had announced the closure of almost all station ticket offices, cutting more than 2,000 jobs. Both the RMT and the Associated Society of Locomotive Engineers and Firemen held a series of strikes over