I feel like it would be a great addition if they could somehow connect merging routes. For example, since the Bakerloo line goes through London Paddington, maybe we could go directly up from the underground tube to the overground GWR. They could create a loading screen in which the person is climbing stairs to get up, just like the real tube. 1 stair = 1% of loading done. This could also be implemented on other routes.
