Equitable carbon budget allocation: Integrating travel mode preference and multi-activity accessibility
研究将出行方式偏好和多活动可达性纳入碳预算分配模型，在群体和个体层面实现公平分配，并利用苏州电信移动数据分析验证模型效果，为政策制定者提供决策支持。
Carbon trading policies (e.g., carbon pricing, carbon credit systems) are crucial for reducing travel-related emissions. These policies necessitate an equitable initial allocation of carbon budget. While travel choice behavior and the built environment influence this allocation, few studies integrate both factors. This study addresses this gap by incorporating travel mode preference and multi-activity accessibility (i.e., the ability to access various activity opportunities) into a carbon budget allocation model at group and individual levels, thereby addressing systemic fairness and individual mobility needs. The model integrates travel behavior, multimodal transport networks, and carbon emissions for equitable allocation and personalized emission reduction strategies. To support a just transition towards net-zero emissions in the transportation sector, decent living standards serve as the baseline for allocation. Analysis of mobility data from China Telecom in Suzhou City (October 11–15, 2021) demonstrates this model ensures equitable emission reductions with most residents meeting the baseline, aiding policymakers’ decision-making.