Análisis de la seguridad y accidentalidad de la Av. de las Américas, en función de las propiedades superficiales

Abstract

The main pavement function is bonded to the circulation and displacement of the vehicles, which by providing adequate properties will increase the users’ acceptability and safety. The Americas Avenue is considered one of the main arteries for the traffic flow in Cuenca city, where is necessary to determine whether the surface properties of the pavement influence the accidentally of the road. That is the reason why this investigation is focused on the evaluation of the surface properties in the critical points of the Americas Avenue, considered one of the principal traffic flow arteries in Cuenca. Five lengths were chosen for the determination of macrotexture, rugosity and PCI (Pavement Condition Index), analyzing the existence or not of correlations between these properties and the accident rate, considering a treatment matrix based on the results. In terms of macrotexture, the sections that failed to comply with international standards in Spain, Mexico, Argentina, Peru, and Brazil, are Jacaranda Park, Miraflores Park and Carlos Vega Arìzaga - Francisco Aguilar (Fair Free), with MTD values <0.5 mm. For national regulations, all sections comply with the specifications except the section of the Jacaranda Park and half of the Carlos Vega Arizaga-Francisco Aguilar (Fair Free) section with MTD <0.3 mm. In the case of roughness, data were obtained that did not comply with national or international regulations as they have values greater than 5 m / km. Regarding the PCI, there were variable ratings between “Very Good”, “Good”, “Regular” and “Bad”. Which threw a "regular correlation" unlike that with the other properties there was an "absence of correlation." Depending on the correlation obtained between accident and PCI, they were suggested for the sections that have a “Regular” PCI, a bump, fissure sealing or replacement of damaged potholes. On the other hand, in the areas with a “Bad” PCI the application of a micropavement is proposed.