scholarly journals Development of a System Dynamics Model to Support the Decision Making Processes in the Operation and Management of Water Supply Systems

2010 ◽  
Vol 43 (7) ◽  
pp. 609-623 ◽  
Author(s):  
Su-Wan Park ◽  
Kyu-Lee Kim ◽  
Bong-Jae Kim ◽  
Ki-Young Lim
Systems ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 2
Author(s):  
Lisa Bross ◽  
Steffen Krause

The increased probability of occurrence of various hazards to water supply systems due to climate change requires the strengthening of their resilience through effective emergency preparedness planning. This paper introduces a method for the assessment of the resilience of water supply systems, including emergency supply measures. With 20 uniquely defined emergency situations, the technical constellations for possible impairments of the water supply are documented. The system analysis developed for each emergency situation is then used to determine and prioritise all suitable supply measures to reduce the supply deficit. Based on the data of a water utility close to Frankfurt, Germany, the developed system dynamics model was used to examine the resource utilisation for the respective emergency situations and to estimate the amount of water provided. The model allows us to scrutinize and compare emergency water supply measures as well as to identify required resources. Furthermore, the method helps us to prioritize measures as well as to make decisions when planning and providing emergency water supply (EWS).


2018 ◽  
Vol 212 ◽  
pp. 06001 ◽  
Author(s):  
Alexander Alexeev ◽  
Nikolay Novitsky

The paper presents a brief description of the problems of making technological decisions to manage the development and functioning of water supply networks in conditions of territorial, structural, and temporal disconnection of the decision-making processes at WKX enterprises. An approach to overcome such problems is proposed, based on the application of end-to-end modeling technologies and a single information space of the enterprise based on the application of the ANGARA-VS information and computing complex. Its brief characteristics and functions are given. The experience of automation of development of operational modes and dispatching management and development of perspective schemes of water supply in Municipal Unitary Enterprise "Vodokanal", Irkutsk.


Author(s):  
Georgios Tsaples ◽  
Theodore Tarnanidis

The objective of this chapter is the development of a System Dynamics model for the study of the milk supply chain and how an extreme event can affect its behavior. A simple interface is developed that can be used to increase the ease of communication and provide an interactive approach to the decision-making process. The model contains three echelons: farmers, processors and retailers. The main results show that under normal circumstances, the behavior of the system reaches equilibrium after a few oscillations. However, these oscillations can be smoothed out if the adjustment time of the order placement is increased. Under an extreme event that reduces the demand for milk, behavior changes and the system remains in dis-equilibrium for the entire simulation. Once again, adjustment times remain the leverages that can influence and mitigate those negative effects. Finally, a more robust and collaborative decision-making process among the actors of the chain could be beneficial for all not only under normal circumstances, but also in the presence of extreme uncertainty.


2012 ◽  
Vol 461 ◽  
pp. 474-477
Author(s):  
Quan Li Huang ◽  
Jing Tao Yue ◽  
Yu Lan Ding

According to the establishment of the simulation model about urban integrated transportation system, this paper established kinematics model of the urban integrated transportation system by the core application of system dynamics theory, technical methods and special tools. This model provided a scientific basis and technical methods to intelligent control and Optimizing the decision-making for urban integrated transportation.


Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 947
Author(s):  
Barbara Tchórzewska-Cieślak ◽  
Katarzyna Pietrucha-Urbanik ◽  
Mohamed Eid

Within the frame of upgrading and modernisation of the Water Supply System (WSS), our work is focussing on the safety systems/devices implemented or that should be implemented in the WSS. The implementation of safety systems is supposed to reduce hazard occurrence and hazardous consequences in case of a WSS unsafe disruption. To assess this reduction, we preconise the use of the safety integrity levels standards. The implementation of the safety systems/devices is undertaken on the ground of the multi-barriers safeguard approach. The “Water Contamination Hazard” is considered in the paper. A case study is presented, assessed and conclusions are drawn. The methodology presented in the paper and the results of the case study assessment will contribute to the decision-making regarding the upgrading of the safety and the performance of the WSS.


Sign in / Sign up

Export Citation Format

Share Document