Publications

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Polyphosphoric Acid Modified Binders
This report provides a general overview of polyphosphoric acid modified binder. A modification mechanism between the acid and binder was proposed. The addition of acid was found to change the chemical compositions of the binder noticeably. The…
A Framework for Appraisal and Evaluation of Travel Demand Management Measures
An appraisal and evaluation framework has been developed which provides a nationally consistent approach to appraisal and evaluation of TDM measures. This framework will provide a basis for more informed choices between non-infrastructure and…