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I keep seeing retards here insinuating something that isn't immediately obvious to non-history nerds so I'll just spell it out plain and simple.
Building a new railways to the middle of nowhere and building housing near the stations was exactly how railway companies back in the day expanded and profited.
The middle class in London could buy houses out in the countryside and have a reliable and comfortable rail service directly to their place of work, and this was in the 30s when cars were viable enough that major avenues were built in London to accommodate them.