This report is the second of two planned publications of PIARC Task Force 4.1 “Road Design Standards” in the period 2020 – 2023. PIARC considered the importance of comparing international road design standards to check their updated status and the degree of their readiness to face the forthcoming innovations in road mobility.
The full report presents a review of selected models in the field of road design standards based on a literature review, which was the first publication of PIARC TASK Force 4.1. It is the first document in many years comparing models applied in road design standards from several countries. The document aims to compare selected models adopted in different countries and evaluate the possible need for their adaptation to the requirements of a rapidly changing world in the field of road transport systems (new technologies, changes in mobility modes, and availability of multiple diffused data sources). This report also assesses possibilities of transferring models to other road design standards mainly in Low- or Middle-Income Countries. The report is available online to registered visitors at https://www.piarc.org/en/order-library/43532-en-Models for Sight Distance in Road Design - A Worldwide Comparison of Standards - A PIARC Technical Report
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