Geometric consistency analysis, through estimation of operating speeds, in horizontal curves of the corridors: Bogotá - Choachí, Salitre - Sopó and Patios – Guasca.

Abstract

Actually, there are no models for predicting operating speeds in road sections, which are applicable to Cundinamarca state, nor is there a clear methodology for reviewing the geometric consistency of a road section in the 2008 road design manual. Taking into account the above and as a result of this research, a series of prediction models of operating speeds in horizontal curves were generated, by processing the record of real field velocity measurements for the topographic conditions of the study sections. Two sections of track with flat, undulating and mountainous terrain were studied; which connect the municipalities of Bogotá - Choachí and Patios - Guasca. Six prediction models of adjusted operating speeds were generated, which were constructed, applying technical variables such as: light vehicles, design speed, slope grouping and radius of curvature. The only dependent variable on the investigation was the operation speed. Once the model construction was completed, the INVESTIGACIONES EN INGENIERÍA CIVIL - Artículo de investigación 12 ESING Página - REVISTA INGENIEROS MILITARES número 14, Año 2019, ISSN 2145-3144 / BOGOTÁ-COLOMBIA geometric consistency analysis was performed, using criteria I and II established by Lamm. It was found that geometric consistency is associated with compliance with the ratio of radii and with the specific velocity homogeneity.