Evaluación de la red vial en el área urbana de la parroquia Izamba de la nueva historia de Ambato, comprendida en la zona 30

Abstract

In Ecuador, there are sectors whose road network is in poor condition due to neglected road maintenance processes. This leads to the deterioration and wear of the existing road network, primarily affecting its functionality, which is closely linked to the social and economic growth and development of a sector. Therefore, the evaluation of the urban road network in sectors such as the Izamba parish, located in Zone 30, is important for identifying areas that require some type of intervention through the application of preventive maintenance techniques that prevent the loss of the road structure and the additional costs associated with poor transportation and vehicle operation. To this end, activities such as topographic surveys using equipment such as drones and RTKs were carried out, in addition to vehicle traffic studies using the thirtieth-hour method, which employs manual vehicle counting. This was also complemented by a soil study, which included tests such as natural moisture content, particle size analysis, Atterberg limits, modified Proctor (method B), and CBR, primarily seeking to establish the properties and characteristics of the sample tested. In addition, the road network was evaluated using the PCI (Pavement Condition Index) method to assess the current condition of the road network and identify appropriate maintenance techniques based on the determined PCI value. Finally, the pavement design was developed based on the AASHTO-93 standard, and the reference budget was prepared. The road network evaluation was carried out on a total of eight roads, of which four are fully paved, three have paved and cobblestone sections, and one is entirely cobblestone. The results revealed 247 failures in both roads and sidewalks, of which 9 correspond to existing damage to the sidewalks and 5 are located in cobblestone streets. Furthermore, it was identified that patching and service connection failures occur most frequently, with corrugation and parabolic or sliding cracks being the least common failures.