Bristol City mayor Marvin Rees has suggested that three underground metro routes could be delivered within 10 years at a cost of £4bn.
“Tackling congestion is one of the biggest city challenges we face,” he said. “There is no single solution but… the biggest and boldest plan of action is to build an underground or mass transit system that connects the heart of the city to major transport points in the city region.
“A pre-feasibility study will be published early in 2018 and the signs are promising. Ground conditions look good and there are some initial thoughts on routes already being considered.
“Costing the work up and establishing a financing model will be the next stage and whilst some will question the amounts being discussed we have to be clear that to meet this challenge we must be ambitious. Without a viable alternative to using cars this challenge will continue to hold back Bristol’s continued success and growth.”
The three lines proposed could link Bristol Airport, Bradley Stoke and Emersons Green to the city centre.