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Integrating system dynamics and fuzzy logic modelling for construction risk management

Nasirzadeh, Farnad; Afshar, Abbas; Khanzadi, Mostafa; … - In: Construction Management and Economics 26 (2008) 11, pp. 1197-1212

dynamic nature throughout the life cycle of the project. A system dynamics (SD) approach to construction project risk … management is presented, including risk analysis and response process. Owing to the imprecise and uncertain nature of risks …, fuzzy logic is integrated into system dynamics modelling structure. Risk magnitudes are defined by a fuzzy logic based risk …

Persistent link: https://www.econbiz.de/10005633178

Dynamic simulation modeling and policy analysis of an area-based congestion pricing scheme for a transportation socioeconomic system

Sabounchi, Nasim S.; Triantis, Konstantinos P.; … - In: Transportation Research Part A: Policy and Practice 59 (2014) C, pp. 357-383

This paper evaluates the impact of an area-based congestion pricing scheme in terms of its effectiveness on mitigating traffic congestion by using a system dynamics model. Unknown parameter values are calibrated using data available from the area-based pricing scheme implemented in the London...

Persistent link: https://www.econbiz.de/10010743832

Application of system dynamics and fuzzy logic to forecasting of municipal solid waste

Karavezyris, Vassilios; Timpe, Klaus-Peter; Marzi, Ruth - In: Mathematics and Computers in Simulation (MATCOM) 60 (2002) 3, pp. 149-158

influences and parameter estimations may seriously vary and thus lead to different simulation results. Linguistic variables are … quantitative data as a basis for simulation. Applying fuzzy logic may enhance confidence in the validity of the model. …

Persistent link: https://www.econbiz.de/10010749302

System archetypes underlying the problematic behaviour of construction activity in Kenya

Mbiti, Titus Kivaa; Blismas, Nick; Wakefield, Ron; … - In: Construction Management and Economics 29 (2011) 1, pp. 3-13

Construction activity in Kenya fluctuates excessively and grows very slowly. This feature causes adverse effects on the construction industry. When a drastic fall in construction activity occurs, the industry loses its production capacity; manpower moves to other industries in the country and...

Persistent link: https://www.econbiz.de/10009200310

A hybrid simulation model of bank branch considered as system of queuing: the role of human factor

Rumyantsev, Mikhail I. - Volkswirtschaftliche Fakultät, … - 2011

This paper continues consideration of computer simulation of a bank branch by means of GPSS World and structural … report on the development of a simulation model to examine the influence of skills, motivation and an emotional condition of …

Persistent link: https://www.econbiz.de/10011257917

Моделирование деятельности финансово-кредитного учреждения средствами системной динамики

Rumyantsev, Mikhail I. - Volkswirtschaftliche Fakultät, … - 2008

The article examines an approach to the simulation of financial institution behavior (and bank in particular) based …

Persistent link: https://www.econbiz.de/10011261120

Green power in Ontario: A dynamic model-based analysis

Qudrat-Ullah, Hassan - In: Energy 77 (2014) C, pp. 859-870

develops, validates, and applies a dynamic simulation model. The dynamic model endogenously represents Ontario's supply mix and …

Persistent link: https://www.econbiz.de/10011077656

Modelling of electrical energy recovery from urban solid waste system: The case of Dhaka city

Sufian, M.A.; Bala, B.K. - In: Renewable Energy 31 (2006) 10, pp. 1573-1580

This paper presents a system dynamics computer model to predict population growth, solid waste production, electricity generation from solid waste and percentage of total electricity demand supplied from the solid waste of Dhaka, Bangladesh. Simulated solid waste generation in Dhaka agrees well...

Persistent link: https://www.econbiz.de/10010807163

A system dynamics based model for coal investment

Fan, Ying; Yang, Rui-Guang; Wei, Yi-Ming - In: Energy 32 (2007) 6, pp. 898-905

Coal is the dominating energy source in China. Although the supply and demand of coal has kept equilibrium along with China's continuous and steady economic development in recent years, the sustainable production ability has been seriously decreasing. In this paper, a system dynamics model is...

Persistent link: https://www.econbiz.de/10010808108

Magnified Effects of Changes in NIH Research Funding Levels

Larson, Richard C.; Ghaffarzadegan, Navid; Diaz, … - In: Service Science 4 (2012) 4, pp. 382-395

What happens within the university-based research enterprise when a federal funding agency abruptly changes research grant funding levels, up or down? We use simple difference equation models to show that an apparently modest increase or decrease in funding levels can have dramatic effects on...

Persistent link: https://www.econbiz.de/10010907916