Factors Affecting Demand Water Demand For Tirtanadi Drinking Water Companies (PDAM) Medan

by ADMIN 90 views

=====================================================

Introduction

The demand for drinking water is a crucial aspect that affects the operational survival of the Tirtanadi Regional Water Supply Company (PDAM) in Medan. As the population of Medan continues to grow, the demand for drinking water also increases, putting pressure on the company to meet this demand. In this study, we conducted a regression analysis to evaluate the effect of various independent variables on the demand for drinking water as a dependent variable. The purpose of this analysis is to identify variables that contribute to the demand for drinking water in PDAM Tirtanadi Medan.

Methodology

The data used in this study were obtained from PDAM Tirtanadi Medan and the Central Statistics Agency of North Sumatra Province. We employed multiple linear regression analysis, which is a statistical method used to model the relationship between a dependent variable and one or more independent variables. The method used in this study is more complex because it involves several independent variables, but it also follows steps similar to simple regression.

Results

The results of the regression analysis show that there are four variables that affect the demand for drinking water, namely:

  1. Population (x1): This variable reflects the number of residents who need drinking water. As the population of Medan continues to grow, the demand for drinking water also increases.
  2. Income per capita (x2): This variable represents people's purchasing power to pay water costs. If the income per capita increases, people may be able to afford to pay more for water, which can lead to an increase in demand.
  3. Water rate (x3): This variable represents the costs charged to customers for water use. If the water rate increases, consumers may look for other alternatives, or try to reduce their water consumption.
  4. Amount of water produced (x4): This variable represents the availability of water that can be distributed to customers. If the amount of water produced cannot meet demand, a water crisis will occur, which can have a negative impact on the health of the community and local economy.

Of the four variables, X1 (population), X3 (water rates), and X4 (the amount of water produced) have a very dominant influence on the demand for drinking water. The resulting regression models are:

Y=−2,076+136,627x1+11609,752x3+0.003x4−0.644x2{ Y = -2,076 + 136,627x1 + 11609,752x3 + 0.003x4 - 0.644x2 }

This model shows a pretty strong relationship with a determination level of 90.3%. This means that around 90.3% variations in the demand for drinking water can be explained by the four variables.

Additional Analysis and Explanation

The increase in population in Medan puts a great pressure on water demand. For example, in a region with rapid population growth, the demand for drinking water will increase as the number of new customers increases. Thus, PDAM Tirtanadi needs to continue to increase its production capacity to meet higher demand.

Water tariffs also play an important role in determining demand. If the water tariff increases, then consumers may look for other alternatives, or try to reduce their water consumption. Therefore, determining a reasonable and fair tariff is the key in maintaining a balance between company income and customer satisfaction.

In addition, the availability of water produced by the PDAM will determine how much water can be channeled to the community. If water production cannot meet demand, a water crisis will occur, which can have a negative impact on the health of the community and local economy.

Conclusion

The results of this analysis provide valuable insights for PDAM Tirtanadi management in planning operational strategies and policy development. By understanding the factors that influence demand, PDAMs can formulate more effective steps in providing clean water services to the people of Medan.

Recommendations

Based on the results of this analysis, we recommend that PDAM Tirtanadi:

  1. Increase production capacity: To meet the increasing demand for drinking water, PDAM Tirtanadi needs to increase its production capacity.
  2. Determine a reasonable water tariff: PDAM Tirtanadi needs to determine a reasonable and fair water tariff to maintain a balance between company income and customer satisfaction.
  3. Monitor water production: PDAM Tirtanadi needs to monitor its water production to ensure that it can meet the demand for drinking water.

By implementing these recommendations, PDAM Tirtanadi can provide clean water services to the people of Medan and ensure the operational survival of the company.

Limitations

This study has several limitations. Firstly, the data used in this study were obtained from PDAM Tirtanadi Medan and the Central Statistics Agency of North Sumatra Province. The data may not be representative of the entire region. Secondly, the study only considered four variables that affect the demand for drinking water. There may be other variables that also affect demand.

Future Research Directions

Future research directions include:

  1. Investigating other variables that affect demand: This study only considered four variables that affect the demand for drinking water. Future research can investigate other variables that also affect demand.
  2. Using other statistical methods: This study used multiple linear regression analysis. Future research can use other statistical methods, such as logistic regression or decision trees, to model the relationship between the dependent variable and the independent variables.
  3. Conducting a case study: This study was conducted at the regional level. Future research can conduct a case study at the local level to investigate the factors that affect the demand for drinking water in a specific area.

=====================================================

Q: What is the main objective of this study?

A: The main objective of this study is to identify the factors that affect the demand for drinking water at the Tirtanadi Medan Regional Drinking Water Company (PDAM) and to provide valuable insights for PDAM management in planning operational strategies and policy development.

Q: What are the four variables that affect the demand for drinking water?

A: The four variables that affect the demand for drinking water are:

  1. Population (x1): This variable reflects the number of residents who need drinking water.
  2. Income per capita (x2): This variable represents people's purchasing power to pay water costs.
  3. Water rate (x3): This variable represents the costs charged to customers for water use.
  4. Amount of water produced (x4): This variable represents the availability of water that can be distributed to customers.

Q: Which of the four variables has the most dominant influence on the demand for drinking water?

A: Of the four variables, X1 (population), X3 (water rates), and X4 (the amount of water produced) have a very dominant influence on the demand for drinking water.

Q: What is the determination level of the regression model?

A: The determination level of the regression model is 90.3%, which means that around 90.3% variations in the demand for drinking water can be explained by the four variables.

Q: What are the implications of the increase in population on water demand?

A: The increase in population in Medan puts a great pressure on water demand. For example, in a region with rapid population growth, the demand for drinking water will increase as the number of new customers increases. Thus, PDAM Tirtanadi needs to continue to increase its production capacity to meet higher demand.

Q: How does the water tariff affect the demand for drinking water?

A: Water tariffs also play an important role in determining demand. If the water tariff increases, then consumers may look for other alternatives, or try to reduce their water consumption. Therefore, determining a reasonable and fair tariff is the key in maintaining a balance between company income and customer satisfaction.

Q: What are the recommendations for PDAM Tirtanadi based on the results of this study?

A: Based on the results of this study, we recommend that PDAM Tirtanadi:

  1. Increase production capacity: To meet the increasing demand for drinking water, PDAM Tirtanadi needs to increase its production capacity.
  2. Determine a reasonable water tariff: PDAM Tirtanadi needs to determine a reasonable and fair water tariff to maintain a balance between company income and customer satisfaction.
  3. Monitor water production: PDAM Tirtanadi needs to monitor its water production to ensure that it can meet the demand for drinking water.

Q: What are the limitations of this study?

A: This study has several limitations. Firstly, the data used in this study were obtained from PDAM Tirtanadi Medan and the Central Statistics Agency of North Sumatra Province. The data may not be representative of the entire region. Secondly, the study only considered four variables that affect the demand for drinking water. There may be other variables that also affect demand.

Q: What are the future research directions?

A: Future research directions include:

  1. Investigating other variables that affect demand: This study only considered four variables that affect the demand for drinking water. Future research can investigate other variables that also affect demand.
  2. Using other statistical methods: This study used multiple linear regression analysis. Future research can use other statistical methods, such as logistic regression or decision trees, to model the relationship between the dependent variable and the independent variables.
  3. Conducting a case study: This study was conducted at the regional level. Future research can conduct a case study at the local level to investigate the factors that affect the demand for drinking water in a specific area.