| Author | Yuddhana Keokhumcheng |
| Call Number | AIT Diss. no.WM-12-02 |
| Subject(s) | Floods--Risk assessment--Suvarnabhumi International Airport (Thailand)
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| Note | A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Engineering in Water Engineering and Management, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Dissertation ; no. WM-12-02 |
| Abstract | The main focus of this study is for the co mprehensive assessment of flood hazard, flood damage vulnerability and flood risk for th e eastern region of Bangkok floodplain which surround the Second Bangkok International Airport (SBIA) or Suvarnabhumi International Airport. The study identified flood risk areas for priority-based flood mitigation planning, which was carried out by using a hydrodynamic model in conjunction with a geographic information system (GIS). A hydrodynamic mode l was used to simulate the flood flow in the study are in terms of flooding depth for 100-y ear return periods of rainfall while the investigation of 25- and 50-year return periods of rainfall were performed for comparison in relation to the 100-year return period of rainfall. The maximum flooding depths at di fferent locations were determined they were classified into different categories of flood depth. Determination of flood durations by a hydrodynamic model is onerous and time-consuming. Hence the flood durations were appraised using the three flooding depth maps whic h indicated the period of rising flood, peak flood and recession flood. Classifications of flood duration were appraised by technique of superposing all of the inunda tion maps. Flood hazard assessments were done by considering flood depth and flood duration. By dividing the study area into small grids, flood hazard factor for each grid that dete rmined by flood depth and flood duration were calculated and finally,the flood hazard maps were developed. The flood damage vulnerability considered both asse t at risk and population at risk in terms of asset value per unit area and population density, respectively. The flood damage vulnerability map was developed by the determination of flood damage vulnerability factor which indicate the sensitivity to flood damage of the element at risk that are exposed to flood. Flood risk assessments were performed by incorporating flood hazard and flood damage vulnerability of elements at risk that are exposed to fl ood. The magnitudes of flood risk were determined by the product of flood hazard factors and flood damage vulnerability factors. This study also considered the effect of land use change on the characteristics of flood risk area. It was found that the changing in land use without proper planni ng causes adverse effect to the flood risk situation of the study area. The finding from this study has adapted an alternative approach to assess flood duration in case of the unavailability of the support data about flood du ration. For the assessment of flood damage vulnerability, we focused both on population density and the asset value in the study area since both of them can be dama ged by flood and results to loss in properties. It is envisioned that the findings from this study will provide useful information about the flood risk zones in the surrounding area of SBIA which can be very useful to concerned authorities in prioritizing projects for flood protection and this assessment has never been done before in this area. Also, the study can provide policy makers some guidelines for flood damage mitigation which can alleviate th e flood related problems of stakeholders in the study area (e.g. impact on livelihood, work in terruption, economic losses or intangible flood damage) Finally, the residents in the floodplain areas can use the obtained information for preparing and minimizing the effect of flood on thei r life and livelihood. |
| Year | 2012 |
| Corresponding Series Added Entry | Asian Institute of Technology. Dissertation ; no. WM-12-02 |
| Type | Dissertation |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Clemente, Roberto S.; |
| Examination Committee(s) | Perret, Sylvain ;Tawatchai Tingsanchali ;Vilas Nitivattananon; |
| Scholarship Donor(s) | The Royal Thai Government ;RMUTK; |
| Degree | Thesis (Ph.D.) - Asian Institute of Technology, 2012 |