Technical instructions regarding determination of the technical condition of roads of national interest. Reference number CD 155-2025

Technical instructions regarding determination of the technical condition of roads of national interest. Reference number CD 155-2025

TECHNICAL INSTRUCTIONS REGARDING DETERMINATION OF THE TECHNICAL CONDITION OF ROADS OF NATIONAL INTEREST Reference number CD 155-2025 is a draft technical regulation revising the ‘Technical instructions regarding determination of the technical condition of modern roads – Reference number CD 155-2001’, intended to provide a uniform characterisation of the technical condition of roads. It takes into account test methods established by European standards (EN) and nationally regulated and notified methodologies for road infrastructure characterisation. It covers the evaluation of both roads with flexible surfaces and those executed using rigid structures.

The draft technical regulation is structured into six chapters and eight annexes. The chapters are: Chapter 1 – General provisions. Scope; Chapter 2 – Normative references; Chapter 3. – The modern pavement management system (PMS);
Chapter 4 – Characteristics used to determine the technical condition; Chapter 5 – Determination of the characteristics used to assess the technical condition of modern roads; Chapter 6 – Determination of the technical condition of modern roads. Annexes 1-8 of the technical instruction contain: Summary forms and sheets regarding the establishment of homogeneous road sections and their characterisation, example calculations for processing deflections and the efficiency of load transfer at joints, sheets for determining the technical condition and the compulsory ongoing and periodic maintenance works.

Key words: methodology for determining the technical condition of roads of national interest; system for optimised optimisation of modern roads; required performance for the technical condition of the road structure and carriageway; updating of the technical package in the field of road transport infrastructure, etc.