The Miles government’s 50¢ transport plan is a “short-term” fix to entice commuters to use slow and outdated services, says a leading policy advocate who pleaded with Queensland leaders to overhaul the network.

Premier Steven Miles unveiled a six-month trial to slash the cost of bus, train and ferry fares as a pre-election cost-of-living sweetener as his Labor government trails the Liberal-National Opposition in all leading polls.