The Royal Mail's 2-ft underground narrow gage

Fascinating what you can find in the world's older cities!
http://www.theregister.co.uk/2016/12/06 ... mail_rail/

While it was still operating I visited the railway on an open day, when I think there was no mail using it.

It seemed quite interesting.

I wish a new use could be found for it, perhaps by extending it to such places as the mail depot on the proper size railway - but privatisation has removed the planning function of BR which could have handled it.

Maybe the worlds first underground cycleway, If the tunnels are high enough,

There are a number of YouTube videos of this

Chicago had a similar tunnel complex, but for freight, not mail.

Mail rail videos: https://www.youtube.com/watch?v=hzGd-5kwR9E" onclick="window.open(this.href);return false;
https://www.youtube.com/watch?v=xb5Ta5NQVOo" onclick="window.open(this.href);return false;

Chicago Tunnel Company: https://www.youtube.com/watch?v=4MoNyzmWz_Y&t=67s" onclick="window.open(this.href);return false;

george matthews wrote: privatisation has removed the planning function of BR which could have handled it.

And hasn't the Royal Mail also been privatised, thus increasing the fragmentation and lack of coherence?

But I think one also has to factor in the general decrease in real mail due mainly to the internet and social media, and also to private courier services - ironically parcels are increasing due to internet shopping, but few are delivered by the Royal Mail.

While there are still a few mail movements by train, there is nothing like the mail trains that used to run all over the network. Mail sorting is now confined to a reduced number of regional sorting offices and there are far fewer mail depots, whether road or rail. A different world.