Report

P73: Review of Pavement Support Conditions under Heavy-duty Asphalt Pavements

November 24, 2025

National and international pavement design guidelines have varying requirements for what constitutes adequate supporting conditions underneath asphalt pavements. Supporting requirements specified by the Queensland Department of Transport and Main Roads (TMR) are currently inconsistent for full-depth, deep-strength and high-modulus (EME2) asphalt pavements. The objective of the Review of Pavement Support Conditions under Heavy-duty Asphalt Pavements project is to recommend changes to TMR guidance documents to adopt a consistent approach that provides adequate support to asphalt pavements.

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