Yeah this is always my go to option. However in London at least each exit gets a number and city mapper will tell you the correct one to use. If you're going to

Yeah this is always my go to option. However in London at least each exit gets a number and city mapper will tell you the correct one to use. If you're going to a big landmark it will also be signposted in the station which helps. I would still rather just get above ground and figure it out then.