This is the answer to my Freedom of Information question to Transport for London on the embedded carbon in construction of the Elizabeth Line. My question was:

Please can I  have the entire embodied carbon of the Elizabeth Line, including stations, tunnels and signalling equipment etc?

Elizabeth_Line_Route_Map-low 2

Our Ref: FOI-0851-1819

Thank you for your request received on 2 July 2018 asking for information about the embodied carbon of the Elizabeth Line.

Total emissions of carbon dioxide from the construction phase of the Crossrail project are estimated to be in the order of 1.7 million tonnes of CO2. More information & supporting documents can be found on Crossrail’s learning legacy website:

Once the railway is operational, there will be annual savings in the order of 70,000 to 225,000 tonnes of CO2, largely due to the displacement of car journeys and replacement of diesel trains on the existing network. The ‘payback’ period is therefore between 7 and 26 years after opening, with the most likely range being 9 to 13 years after opening, beyond which there will be net savings in CO2. The variation in the figures also factor in possible differences in service operating patterns and specification of rolling stock.

Crossrail’s carbon footprint development and measurement provides a benchmark for future rail projects. A spreadsheet based tool was developed to measure the overall carbon footprint through Scope 1, 2, 3 in construction and also over 120 years of operation. A further tool, described herein, was developed to forecast and monitor the ongoing construction carbon footprint (Scopes 1 & 2) to enable the project to determine if it was on target to achieve its target reduction. The Manual and Excel based models for both are included as supporting documents. You can access the manual & excel based models & supporting documents here:

My further questions would be:

  1. Does this include cement emissions produced outside the UK?
  2.  I need to ask a few people to put 1.7 million tonnes of CO2 into context
  3. I would also like to know the carbon footprint of running the Elizabeth Line.
  4. How does embedded carbon of the East /West cycle superhighway compare?