Abstract
Flooding in Thailand’s capital, Bangkok, impedes the development of the city and brings challenges to the well-being of its citizens. The city is situated in a flood-prone area. This study investigated perceptions of the causes among the residents of perennial floods in Bangkok, examining daily precipitation changes over the last 30 years on eight indices (R10, R20, R25, CDD, CWD, RX5day, PRCPTOT and R99p) and the characteristics of the city that promote or exacerbate flooding. The data was collected by the Thai Meteorological Department (TMD) from station ID 455201 in the period 1986 -2015. Plausible factors contributing to flooding vulnerability and to the ineffective implementation of the city’s flood corrective and preventive measures were determined. A survey of 400 residents of 20 flood-prone localities in the capital’s four districts was carried out and statistical analysis was performed. Further, levels of satisfaction with the efficiency and effectiveness of the city’s flood corrective and preventive measures were assessed. The documentary and empirical findings collectively illuminate three contributing factors or causes of persistent flooding in the capital and of the ineffectual execution of flood-related policies and measures.
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