Dimensioning Urban Drainage Systems in Housing Subdivisions in the Amazon Using Different Hydrological Models
Dimensioning Urban Drainage Systems in Housing Subdivisions in the Amazon Using Different Hydrological Models作者机构：Department of Exact and Technological Sciences Federal University of Amapá Macapá Brazil Postgraduate Department Federal University of Amapá Macapá Brazil
出 版 物：《Journal of Geoscience and Environment Protection》 (地球科学和环境保护期刊（英文）)
年 卷 期：2023年第11卷第11期
页 面：151-170页
学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学]
主 题：Hydrological Studies Concentration Time Calha Norte Program Amapá
摘 要：Hydrological studies for sizing urban drainage systems in the Amazon have often been neglected and little investigated for rainwater projects. This research evaluated alternative hydrological models used in sizing urban drainage network projects in subdivisions with subsidized houses in the Amazonian region in Brazil. Statistical tests of these models were performed for both original and alternative scenarios. The methodological steps we conducted as follows: 1) evaluate the dimensioning of infrastructure project networks, considering two case studies contemplated by the Calha Norte Program (CNP) in the state of Amapá;2) test the statistical significance of the dimensioning of network diameters (α t) and rainfall intensity-duration-frequency (IDF) relationships, as well as estimating diameters using alternative models. The results indicated a significant influence on the diameters of the projected rainfall networks (p t parameter significantly impacts dimensioning estimates in rainwater projects in these Amazonian municipalities. This suggests that underestimated parameters in MD may cause inefficiency in the stormwater system projects in future similar scenarios.
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