Lessons learned from Khartoum flash flood impacts: An integrated assessment.

摘要: This study aims at enabling the compilation of key lessons for decision makers and urban planners in rapidly urbanizing cities regarding identification representative, chief causal natural human factors increased level flash flood risk. To achieve this, impacts events 2013 2014 capital Sudan, Khartoum, were assessed using seven integrated approaches, i.e. rainfall data analysis, document analysis affected people houses, observational fieldwork worst areas, people's perception causes mitigation measures through household interviews, reported drinking water quality, water-related diseases social risk assessment. Several have been developed as follows. Urban must recognize devastating risks building within pathways ephemeral watercourses. They also ensure effective drainage infrastructures physio-geographical investigations prior to developing areas. The existing systems become ineffective due blockage by waste. Building unauthorized embankment structures locals often cause greater problems than normal. runoff is especially problematic residential areas built low-lying having naturally low infiltration capacity, surface can collect hollows depressions, or beside elevated roads that preclude free flow floodwater. Weak housing infrastructure quality are vulnerable flooding even directly. Establishment services imperative disaster reduction. Water supply should be from lower aquifers avoid contaminant groundwater. Regular monitoring archiving its indicators help identify sources contamination event environmental disasters such floods. Though understanding an important aspect making planning processes, it advanced enough proper awareness.