The diagrams illustrate one catastrophic procces. All process show the problems of flooding in the UK areas and demonstrated two possible decision of this.
Overall, both solutions processes involve several sequential stages. For example, they had disadvantage and advantage side, which could value and criticize at the same time. The method of first solution is changing location of place, transforming the flow on the other side , but disadvantage of this solution is not benefits of finincial. For governments this way consist highest cost, but this way can support for environmental protection of habitants. At the first process issue is coming in residental area and than continue to industral park, while the river b flowing on the commercial buildings linking with river a.
Turning to the second process, they had the solution to installing dam in the both side of the flooding, exactly in the industrial park and parallel from the commercial buildings. Similarly they have failure land, but that is not major obstacle for the governments, that is possible opportunities by low cost and they can deal with it.