Strategic Flood Risk Assessment - South Worcestershire ...

oflooding. Additionally, if there is new development that increases the probabilityof flooding (for example, increase in volume of runoff due to increasedimpermeable surfaces) or increased density of infrastructure then consequenceswill also be increased.Receptor vulnerability: If the vulnerability of the people, property or infrastructureis increased then the consequences are increased. For example, old or youngpeople are more vulnerable if there is a flood.4.2 Using SFRA risk informationThis SFRA update contains information that can be used at strategic, operational and tacticallevels as shown in Figure 4-1.Figure 4-1: Uses of SFRA informationAssessriskAvoid orreduce riskControl ormitigate riskTactical response toflood eventPost event recoverysupportBefore a flood During a flood After afloodThe SFRA will be an important source of information in the preparation of the Local Flood RiskManagement Strategy.The assessment of flood risk in the SFRA is primarily based on the following three types ofinformation4.2.1 Flood ZonesThe SFRA includes maps that show the flood zones. These zones describe the land that wouldflood if there were no defences present. The NPPF Guidance identifies the following FloodZones and these are used in the South Worcestershire SFRA update, see Figure 4-2 and Table4-1.Figure 4-2: Flood Zone definitionFLOOD ZONE 1FLOOD ZONE 2FLOOD ZONE 3aFLOOD ZONE 3bFLOOD ZONE 3aFLOOD ZONE 2FLOOD ZONE 12012s5947 S Worcestershire Level 2 SFRA Update FINAL Report v1.0.doc 23