New York City and London have a lot in common, including being structured for people to move about quickly, so having a reliable transit network is crucial for the two cities.

In London, the Underground - or "Tube" - carries millions of people every day, but when looking at the stations and even the trains, New Yorkers would notice many differences, including platform doors at some stops.

Conversations about bringing such infrastructure to New York City are not new, but many ideas have reached a stalemate. However, Andy Byford, the former president of New York City Transit and commissioner of Transport for London, told "Mornings On 1" on Monday that changes are still possible.

He sat down with Pat Kiernan and Jamie Stelter to discuss what New York could learn from London, and also what London could learn from New York.