The management of construction waste carbon emissions is a critical issue for stakeholders and policymakers. This study evaluates waste generation and carbon emissions across the construction waste management (CWM) process, identifies key factors influencing waste reduction (WR) and carbon mitigation behaviors.
This study develops a simulation model based on multi-agent and system dynamics (SD) methods. Through multi-policy scenario simulations, examines stakeholder decision-making and behavioral choices in waste reduction, resource utilization, illegal dumping (ID), and carbon mitigation across the CWM process.
Stakeholder interactions facilitate green transition and yield superior carbon and WR outcomes compared to non-interactive scenarios. Fines effectively curb ID and promote resource-oriented waste management, whereas subsidies encourage resource utilization but have limited deterrent effect on ID behaviors. In China, carbon trading prices (CTP) of 90–100 CNY/ton strongly incentivize enterprises to adopt new energy vehicles for waste transport, promoting source reduction. The changes in carbon tax (CT) and CTP have substantial impacts on carbon emissions.
This study provides a theoretical foundation for governments to formulate carbon emission reduction (CER) policies for managing CW resources and offer guidance to enterprises seeking to reduce waste and carbon emissions.
This study develops an integrated ABM-SD model to analyze the impact of policies, technologies, and public participation on WR and carbon mitigation from macro and micro perspectives. It examines enterprise decision-making and government-enterprise interactions, identifies optimal policy combinations to enhance WR and carbon mitigation.
