A Guide to Integrated Urban Flood Risk Management for the 21st  Century provides forward-looking operational assistance to policy makers and technical specialists in the rapidly expanding cities and towns of the developing world on how best to manage the risk of floods. It takes a strategic approach, in which appropriate risk management measures are assessed, selected and integrated in a process that both informs and involves the full range of stakeholders.

GFDRR
https://www.gfdrr.org/node/1068