Farzad Pargar

grouping optimization scheduling renewal maintenance system dynamics feedback loops multi-unit system preventive maintenance farzad pargar operations research setup cost setup time hybrid flow shop learning effect production resource utilization balancing roadway railway infrastracture prorail planning tamping ballast sleeper rails grinding mathematical model heuristic replacement preventive knock-on effect ripple effect rework cycle slippage overrun risk dynamics gert cpm pert wbs sd project management system thinking system structure stock simulation mental models leverage point kanizsa inforcing loop flow chicken and egg problem casual diagram bass diffusion balancing loop anylogic