The violence in Colombia has had great impact on the economic and social development of the sectors which have suffered a higher incidence of armed conflict. This has, in turn, led to their isolation from the rest of the country and their exclusion from the social system provided by the State. Within the framework of the peace agreements negotiated between the national government and armed groups, investments are being sought for the development of road infrastructure that is part of the national tertiary network, and which will attempt to connect small rural hamlets with municipal capitals. If this network has acceptable trafficability and standards of service, then the State will be guaranteed access to vulnerable areas allowing the provision of healthcare services, education, security, etc. This article analyses the challenges that the national government will face when giving the most remote and vulnerable populations in the country access to tertiary roads.