Diversification of Water Network Tanks Volume

Diversification of the water volume has a particularly positive role in crisis situations related to water supply in urban and industrial areas. The function of water supply tanks is to compensate water supply for a settlement unit in a daily cycle, stabilizing the pressure in the supply area. In crisis situations, tanks capacity is used for the purposes of fire. A new function is the use of stored water as an emergency source of water supply during failure. Water supply network tanks act as reserves for various types of undesirable events. The previous methods of analysis and risk assessment in water supply systems did not include directly the assessment of volume diversification in a given number of water supply network tanks. For this purpose the Shannon-Wiener index, as well as the author’s index, based on the polynomial function, were proposed. These indices enable to perform an objective assessment of the water volume diversification degree and comparing the various subsystems of collecting water on the example of seven water supply system in the south of Poland. Perspectives for the development of research direction, that is safety management, is a challenge for both theoreticians and practitioners working in the water supply companies.