CO2 Calculator > About Us

About Us

This free to use carbon calculator has been developed by TRL, verified by WRc and sponsored by the Pipe Jacking Association.


TRL is an internationally recognised centre of excellence providing world-class research, consultancy, testing and certification for all aspects of transport.


WRc is an independent and innovative research-based consultancy, utilising scientific and engineering skills to develop robust and sustainable solutions for clients in the water, waste and environment sectors. WRc contributes to the protection, enhancement and maintenance of the natural environment.

The Pipe Jacking Association

The Pipe Jacking Association is an industry body representing the leading contractors, pipe suppliers, and machinery and associated suppliers in the United Kingdom pipe jacking and microtunnelling industry.

Pipe jacking is a specialist tunnelling method for installing underground pipelines, primarily for new sewer construction, with the minimum of surface disruption.