城市更新背景下老旧小区建筑垃圾运输路径优化及碳排放影响研究OACHSSCD

Against the backdrop of the synergistic advancement of the"dual carbon"strategy and ur-ban renewal,optimizing construction waste disposal routes and controlling carbon emissions have be-come crucial issues for urban green transformation.Focusing on the renovation of old residential areas in Yangzhou City,this study investigates the route optimization of the construction waste disposal sys-tem and its carbon emission impacts.An integrated analytical framework of"facility layout-route plan-ning-carbon emission assessment"is developed.By employing an improved Dijkstra algorithm and a life cycle assessment model,the optimal transportation routes for construction waste from transfer sta-tions to treatment plants and their carbon reduction potential are systematically evaluated.The results indicate that route optimization reduces the average transportation distance by 45％and cuts carbon e-missions in the transportation phase by approximately 4.70×106 kgCO2e,demonstrating the practical carbon reduction effectiveness of route optimization in urban renewal scenarios for small and medium-sized cities.This research provides theoretical support and route reference for the low-carbon manage-ment of construction waste in Yangzhou City and similar urban contexts.