Fundamentals
Cleaning strategy
Reactive and preventive strategy
Cleaning strategy
Comparison of the cleaning strategies
Table:
Achieving the cleaning goals through different strategies [SteinD00a].
| Strategy |
Reactive
strategy
|
Preventive
strategy
|
Demand-
oriented
strategy
|
Demand and
condition oriented
cleaning strategy
|
| Operational reliability | low | high | high | high |
| Impact on the watercourse | high | low | low | low |
| Strain on the sewer system infrastructure | high | high1 | middle2 | low |
|
Cost
|
high3 | medium4 | low | low |
[1] since risks are not detected and the areas of risks not separately noted down
[2] since damaged sewers are charged by cleaning, consequential damage
[3] since costs for cleaning are low but costs for consequential damages high
[4] no optimum between costs of cleaning and costs of consequential damages
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