1. Brazilian Company of Urban Trains, Square Napoleao Laureano, 01 Varadouro, João Pessoa 58010-150, Brazil
2. Department of Geographical Sciences, Federal University of Pernambuco, Avenue Professor Moraes Rego 1235, Cidade Universitária, Recife 50670-901, Brazil
3. Civil Engineering Department, University of Granada, Campus de Fuentenueva, s/n. E.T.S. Ingenieros de Caminos, Canales y Puertos, 18071 Granada, Spain
4. Department of Renewable Energy Engineering, Federal University of Paraíba, Campus I, Castelo Branco III, João Pessoa 58051-900, Brazil