Britain is building one of the world’s most expensive railways

The original plan was to have 18 trains running every hour in each direction between London and Birmingham [0]. This is tube frequency, and very difficult to do. Therefore the specs and designs were quite expensive. But however sophisticated (or not) the trains where, a _lot_ of money is needed to buy out property holders and construction.

However, this is a complete paradigm shift in the way of travel. This would have made Birmingham a suburb of London, as you can just go to the train station and hop on the next train as you do if you were to travel from anywhere within London.

The newspapers kept reporting the "faster" travel times which only shaves off "a few minutes" for a huge amount of money. But that was not the point. The point was capacity through frequency.

Over the years, this has been watered down. Now still a huge amount of money is spent on property buyouts and nature preservation / protection (the same higher frequency trains would have needed as well), on a marginally better service.

It seems to me (maybe thats wrong) that a lot of the fancy tech that is needed for increasing frequency could be had at relatively low extra cost, because there is this high base budget that needs to be spent whatever the performance of this new rail-line. So now HS2 is the worst of both worlds: expensive works delivering only a small improvement.

[0]: https://assets.publishing.service.gov.uk/media/5a82b56740f0b...

Thats a normal Shinkansen fregvency on busier stations - saw departures every 3 minutes in Hiroshima station. :)

The Shinkansen runs the fastest Nozomi service about every ten minutes throughout the day at around 5 trains per hour on the most popular routes like Tokyo to Osaka, then during peak hours there's another 5 added in on top of that as well. Plus there are some other slower, cheaper services that run as well and some trains will be express an others stop at more stops or go to further destinations and so on.

I think altogether they probably come to one train every 3 minutes during peak times, but they are not all the same trains and don't all go to the same place and stop at the same stops. There is generally about one train every 10 minutes per platform at a station in my experience, but of course there are usually well over 20 platforms per big station, it's not like there is one platform with a train stopping every three minutes.