Diseño geométrico y estructural de la carretera del Recinto Cuatro Mangas, Mocache - Ecuador

Abstract

This thesis presents the geometric and structural design of the road in Cuatro Mangas (Mocache, Ecuador) to enhance trafficability, safety, and durability under current standards. The specifics objectives were: (a) assess the existing condition with a photographic survey; (b) record the AADT (TPDA) for chainage 0+000–0+946.021; and (c) produce the horizontal and vertical design. Methods comprised field surveys, classified counts, Civil 3D modeling, and MTOP/INEN compliance checks; pavement sizing was outlined using CBR/AASHTO-93 criteria for a 20-year horizon (referential). Counts confirmed a low-volume road dominated by motorcycles and light vehicles. The final design adopts 25 km/h design speed, normative radii and superelevation, and a 6.0 m carriageway with 0.60 m shoulders. A typical structure is proposed: 5 cm asphalt wearing course over 15 cm base and 20 cm subbase, consistent with observed demand and representative CBR. Plans, quantities, and a referential budget are provided. Results show the proposal meets the objectives and supports the hypothesis: it improves level of service and lowers maintenance costs relative to current conditions, assuming proper construction and routine–periodic upkeep.