Why the population forecast necessary in the design of public water supply scheme?
Answers
Answer:
population forecast is necessary in the designing of public water supply scheme because if it is Underestimated value then it will make the system inadequate for the purporse intended.Similarly, if it is overestimated value then it will make it costly.
Answer:
The population is an important parameter not entirely settled for the plan of the water arrangement of a specific region. Water supply systems are intended for a population expected for a specific plan period as opposed to thinking about the current population of the area.
Explanation:
Population forecasting is characterized as the technique for deciding the normal population for a specific plan time of a water supply framework with the assistance of the review and investigation of future occasions and accessible records.
Methods of population forecast:
The population forecasting techniques require the upsides of present and past population records to go through the computation. The nearby statistics records of a specific region offer the benefit of present and past populations
The two methods used for population forecasting :
- Short Term Methods
- Long Term Methods
The short term methods are:
- Arithmetic Progression
- Geometric Progression
- Iller Bankasi Method
- Decreasing Rate of Growth method
- Graphical Extension Method
The long term methods are:
- Comparative Method
- Ratio and Correlation Method
- Component Method
- Logistic Method
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