Last Updated: 6-2021
This research discusses how to encourage public supervision and promote the efficiency of supervision in PPP project, as well as how to promote the utilization of BIM technology for both local governments and private sectors based on evolutionary game analysis and simulation. First, evolutionary game models on PPP projects from public supervision perspective and BIM technology perspective are constructed to explore the impact mechanism. The model from public supervision perspective contains three sub-models: 1) one-time cooperation model 2) long-term cooperation model, and 3) Nonprofitable model. The causation diagrams based on system dynamic are created to summary how the attributes of public supervision and BIM technology influence the payoff by gamers. Scenario analysis and duplicate function of the evolutionary game model are demonstrated to identify the sensitive parameters in the model. On this basis, the simulation results show that: 1) Initial strategy proportion of players can significantly influence the evolutionary stable strategy (ESS); 2) appropriate level of supervision with public supervision can improve the system gross benefits and improve the quality of projects in PPP projects; 3) The attributes of performance payment, Supervision cost rate, Rent-seeking cost are positively correlated with the possibility of ideal events, while the viability gap funding is negatively correlated with ideal events in PPP project; 4) The level of BIM technology applied in PPP project is decisive for strategy choice for players, while the lifecycle management of BIM can contribute to the ideal evolutionary stable strategy.