CTA to purchase all-electric buses; RfP planned to be issued by end-2016 January 22, 2016 | North America News The Chicago Transit Authority (CTA) has announced plans to purchase between 20-30 all-electric buses at an investment of USD30-40 million in the next few years. A request for proposals (RfP) is expect... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password