Not my thing but walking the children to school spotted one of the engines shown here

Children asked what it was as it looked like a snow plough. Which I think it’s not due to the handles on what is it?

Quick Google of ZZA leads to this;

Network Rail Snowplough ZZA ADB965206 is stabled awaiting the next snow storm in the parcel sidings at York Station on the East Coast Main Line in North Yorkshire (UK).

These type of snowploughs were converted from ex steam locomotive coal and water tenders in the 1960s apparently? This certainly has the right footprint and wheel arrangement.

Class 66 diesel locomotive 66433 is at the rear.

https://www.flickr.com/photos/stuart166axe/16053409523

plus loads of links to having one added to your train simulation game…

Ah so it is a snow plough then.

It is a snowplough, the BR Independent Snowplough.

Must be ace thundering that through really deep drifts.!