Practical guide for assessing the need for conservation or modernization of roads inMexico

Given the accelerated deterioration of the road network in Mexico, the proposed guide presents a rigorous methodological approach that facilitates decision-making between the conservation and modernization of road segments, ensuring their functionality and safety. Developed in response to the concerning state of the National Road Network (RNC), this guide combines documentary research with field evaluations, providing a robust technical tool for engineers and technicians to make informed decisions. It is based on key indicators such as signage, pavement condition, and geometric design. To validate its application, a case study was conducted on a road section in the Municipality of Valle de Bravo, State of Mexico, demonstrating the importance of implementing modernization work when conditions require it. This guide establishes itself as an indispensable tool for the strategic management of road infrastructure, optimizing resource allocation and ensuring that Mexican roads meet the demands of transportation, with a focus on safety and efficiency.