Rail freight drivers are threatening to boycott hundreds of trains in a row over the state of cabs , says the drivers' union Aslef (link below.)
http://news.bbc.co.uk/1/hi/uk/6605713.stm

The union said its members will refuse to drive the Class 66 locos from 18 June unless conditions are improved.

Drivers are complaining the cabs lack air conditioning and proper seating and are noisy and unhealthy.

There are hundreds of Class 66 locos in operation , which make up a large proportion of the UK's rail freight fleet.

Continuing on the freight theme , the DfT have released the Strategic Rail Authority's freight train operating cost model reference manual (April 2005 , link below.)
http://www.dft.gov.uk/foi/responses/2007/april2007/srafreightmanual/srafreightmanual

However , "Further to my letter of 19 March, I confirm that the Department holds the information you requested, “Strategic Rail Authority’s Freight Train Operating Cost Model Reference Manual (April 2005)”, but regret to inform you that some of this information cannot be disclosed. The information being withheld falls under the “commercial interests” exemption, in section 43(2) of the Freedom of Information Act 2000."