Drainage and runoff management |
Stormwater management is essential to prevent flooding of inhabited urban or rural areas. Both cases can cause severe damages and contamination of the environment if sanitation facilities are flooded. This results in high costs and notably massive suffering for the local communities.
Stormwater management means to manage surface runoff. It is essential in urban areas where run-off cannot infiltrate because the surfaces are impermeable. Traditional stormwater management was mainly to drain high peak flows away. Unfortunately, this only dislocates high water loads. Modern approaches aim to rebuild the natural water cycle, to store runoff water in retention basins for a certain time, to recharge groundwater in infiltration basins. Planning, implementation, operation and maintenance require expert knowledge. Drainage projects for transportation infrastructure include the design of main drainage arteries, the calculation of distribution simplifications, the design of water conveyors, canals, the drainage of the driveway and the drainage of the tunnel. For hydrology and drainage planning, the design team uses simulation tools to model rain events at varying probabilities, analyzes impact data on retention basins, pipelines, canals etc. |
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