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Economic Appraisal


TRL is now proud to distribute HDM-4 v2.  TRL has been a part of the HDM Global Consortium funded by the World Road Association for the development and advice into the product and are looking forward to our increased involvement through the onward sales to transport professionals.

At TRL we believe in taking our 75 years of research through into products in order to bring world class software to the professional transport practitioners.  Adding HDM-4 to the portfolio of software available from us delivers on this belief once again.