Low-Carbon Transition Pathways for Urban Road Lighting Systems:An Empirical Study in Nanjing Based on Life Cycle Assessment
GUO Fei
ZANG Feng
XU Tian
CHEN Kangwei
Abstract：Urban road lighting systems have emerged as key targets for low-carbon infrastructure transition under the dual-carbon policy framework.Current research predominantly focuses on carbon emissions during the operational phase,while neglecting emissions associated with material manufacturing,construction,and maintenance phases,thereby leading to incomplete carbon footprint assessments.This study,grounded in ISO 14067 and Life Cycle Assessment(LCA)methodology,establishes a carbon emission accounting model encompassing raw material acquisition,product manufacturing,installation,and operational maintenance stages.Based on empirical data from six representative roads in Nanjing,the study identifies major carbon sources and influencing factors in urban lighting systems.A set of differentiated low-carbon strategies,such as intelligent control optimization,lamp parameter adjustment,and lighting layout redesign,is proposed and integrated into a"road-specific"emission reduction framework.Simulation results validate the effectiveness of the proposed approach.The findings provide a methodological foundation and technical support for the green upgrade of urban lighting systems,while also offering empirical evidence for policy-making,bidding evaluation reform,and sustainable lighting infrastructure development.
Keywords：road lighting systemsLCAcarbon footprintcarbon reduction strategiesdual-carbon targets
Publication Date：2025-08-30
Online Publishing Date：2025-09-17(First online date of this platform, not the publication date of the document)
Pages：8( 1-8 )