These are the specially designed trains which will travel 'twice around the world' to clear leaves and debris from the South Western Railway network this autumn

The special leaf and debris busting trains will be in use day and night for the next three months to clean SWR routes in and around Surrey

from getsurrey - News http://www.getsurrey.co.uk/news/surrey-news/specially-designed-trains-travel-twice-13779950