Kawasaki, the manufacturer of a number of new train cars slated for use in Greenwich, Conn., is working to fix software code problems, which included an electromagnetic interference problem that caused cars to disrupt railway signal systems and garbled on-board public address announcements. Under the state’s contract with Kawasaki, the first eight pilot cars must log at least 4,000 track miles without a failure before they go into public service. Subsequent cars will need to operate for 1,000 miles error free to be put into public service.Read more from Greenwich Time.