WSUD Assignment Example | Topics and Well Written Essays - 1000 words

WSUD - Assignment Example Before the urban development the water used to get soaked in water and was recycled easily by atmosphere. Moreover it contributed to land enrichment. In addition to causing pollution, storm water can cause streams erosions and increased flooding. Moreover increased flooding conditions cause property damage due to the chemicals and pollutants that get dissolved in the water runoff. Thus it is becoming a source public health risk. Even though safety measures are being taken, but still there a high risk of public safety getting compromised. The storm water can also become a source of pollution after heavy rainfalls. In many countries such as USA and UK some regulations have been set to prevent such cases. Water runoff is a serious problem in Asian countries like Pakistan, India and Bangladesh where there is unusually great amount of rainfalls during the monsoon period. The conditions of the drainage system in the above mentioned countries are below average. A design for the storm water management in these countries is yet to be produced. The new constructions are also making the situation worst due to the fact that new roads designed are not given the proper slopes to get rid of the storm water runoff problems. The contributing drainage region establishes the boundary restrictions for the flow of runoff - from the highest elevations to the lowest point of elevation. Some of the impacts of the development on hydrological cycle include increased peak discharges of runoff compared to pre-development levels, Increased volume of runoff formed by each storm in comparison to the pre-development situation, decreased time in which runoff reaches the stream, chiefly if extensive drainage changes are made. There are limitations in conventional stormwater management system because it only focuses on transportation and reduction of peak flow. The concept of conventional stormwater drainage