Making the Urban Water Pricing Model Using Operation Research Method

Demand management is one of the efficient ways in water supply management for decreasing water consumption, protection, and taking care of the precious resources.Demand management includes two alternatives, hardware management, and software management. Software management is preferable because it is an efficient and cheap method. Correct pricing is one of the software management methods in the urban water supply.In this article, linear programming method for water pricing for Yazd is discussed. In the pricing model, attempt was model to consider various and real constraints and justice in order to acquire maximum benefit.In this study the percent price increase for all domestic classes and non-domestic classes in 1380 were suggested.In this suggestion we have considered five groups of different constraints and domestic, non-domestic consumption quantity and approved water price of Yazd in 1379.Increase of 5 percent is offered price for domestic class range of 5 to 10 m3.Increase of 5.3 percent is offered for the rest ranges.