Technical Analysis Applied in the Inspection of Distress on the Surface of Asphalt Pavement using Remotely Piloted Aircraft (RPA) Leonardo Vieira Barbalho, Hélio Lopes Guerra Neto, Sandra Oda, Sergio Orlando Antoun Netto Anuario do Instituto De Geociencias, 2025 The transport sector can be considered one of the most important in promoting urban mobility in Brazil. The lack of efficient road planning and transport greatly affects people's daily journeys. Another important factor is the increase in the number of vehicles in Brazilian municipalities, which also contributes to the negative outlook regarding traffic in Brazil. This work aimed to use Remotely Piloted Aircraft (RPA) to obtain images that enable analyzes of the surface conditions of the asphalt pavement. The place where the study was carried out was the BRT TransOeste corridor in Rio de Janeiro, which connects the Barra da Tijuca region to Santa Cruz and Campo Grande, passing through Guaratiba and Recreio dos Bandeirantes. The following procedures were adopted: flight planning with RPA, observing the Ground Sample Distance (GSD) recommended by scientific literature, field support using Global Navigation Satellite System (GNSS) Networked Transport of Radio Technical Committee for Maritime Service (RTCM) via Internet Protocol (NTRIP) technology, processing of images obtained using Agisoft software, generation of orthophoto orthorectified and assessment of distress on the asphalt surface based on the analysis of images obtained with RPA using the Pavement Condition Index (PCI).
Challenges of implementing a land cadastre in Rio de Janeiro: the Bangu case study Leonardo Vieira Barbalho, Fernando Rodrigues Lima, Luiz Carlos Teixeira Coelho Filho Proceedings of the Institution of Civil Engineers Municipal Engineer, 2023 The urban environment of Rio de Janeiro has its own complexities when compared with other large cities in Brazil and around the world. In addition to its peculiar topographic structure, the history of the city – from its foundation to the present day – has led to unique and contradictory characteristics. A multipurpose land cadastre (MLC, in Portuguese: Cadastro Técnico Multifinalitário), since its inception in Brazil, promises to adapt urban environments to a new reality, facilitating the management of their entire territories by using tools such as geographic information systems. This study intends to identify and analyse the main issues that prevent Rio de Janeiro from establishing an effective MLC, most notably the existence of a variety of land-use bases with legal value, but which are contradictory if examined cartographically. This study was carried out by examining a subset of Rio de Janeiro: the Bangu neighbourhood. Bangu was chosen for being a considerably complex neighbourhood, with a variety of land uses that reflects the urban fabric of Rio de Janeiro as a whole. The analysis not only points out inconsistencies in current cadastral bases, but also suggests tasks and policies to help overcome them and provide the city with appropriate cadastral bases that reflect the reality of its urban soil.
