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道路ネットワークにおける時空間的炭素排出特性と持続可能な削減戦略:対象路線制御と車両電動化のシミュレーション

Spatiotemporal Carbon Emission Characteristics and Sustainable Reduction Strategies for Road Networks: A Simulation of Targeted Road-Segment Control and Vehicle Electrification (原題)

Kun Xie, Peixin Guo, Jiayu Bao, Honghui Dong, Zhihua Xiong, Chunjiao Dong

Sustainability📚 査読済 / ジャーナル2026-07-03#EV・輸送Origin: CN対象セクター: transport
DOI: 10.3390/su18136773
原典: https://doi.org/10.3390/su18136773

🤖 gxceed AI 要約

日本語

本研究は、北京のGPS軌跡データ(5699台、2019年9月)とCOPERT排出モデルを用いて、道路ネットワークの車両炭素排出の時空間特性を分析した。さらに、ライフサイクルアセスメント(LCA)を考慮した電動車両の排出量を組み込み、ランダム選択とランキング最適化に基づく排出削減戦略を提案した。シミュレーションの結果、ランキング最適化方式はランダム選択よりも高い削減効果を示し、電動化促進と精密な削減制御の統合が有効であることが示された。

English

Using GPS trajectory data from 5,699 vehicles in Beijing (September 2019) and the COPERT emission model, this study analyzes the spatiotemporal characteristics of vehicle carbon emissions on road networks. Incorporating Life Cycle Assessment (LCA) emissions for electric vehicles, carbon reduction strategies based on stochastic selection and ranking-based optimization are proposed from two dimensions: road-segment control and vehicle electrification. Simulation results show that under specified scenario assumptions, the ranking-based optimization scheme yields approximately 2 to 3 times greater carbon reductions than stochastic selection, indicating that integrating EV promotion policies with precise carbon reduction control strategies can effectively mitigate urban road network emissions.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

本研究成果は、日本の都市交通におけるCO2削減施策(EV補助金や渋滞課金など)の効果検証に応用可能である。特に、LCAを考慮したEVの排出評価や、路線ごとの最適制御手法は、日本国内のスマートシティ構想や交通脱炭素政策において参考となる。

In the global GX context

This study provides a data-driven framework for urban transport decarbonization that is relevant globally. The integration of real-world trajectory data with LCA-based EV assessment and segment-level optimization offers actionable insights for cities worldwide that are developing EV promotion and traffic management policies to meet climate targets under TCFD/ISSB frameworks.

👥 読者別の含意

🔬研究者:Validates emission reduction potential of EVs and road segment control using real trajectory data and LCA, providing a replicable methodology for urban carbon accounting.

🏢実務担当者:Urban planners and transportation authorities can use the ranking-based optimization approach to design effective carbon reduction measures targeting specific road segments or vehicle electrification.

🏛政策担当者:Supports the design of integrated policies that combine EV adoption incentives with traffic management to maximize carbon reductions, offering simulation evidence for policy targets.

📄 抄録(日本語訳)

全球气候变化对城市可持续发展构成严峻挑战。因此,建设低碳交通系统是提升特大城市道路网络可持续性的核心战略。结合城市道路交通网络的特征,本文基于GPS轨迹数据(5699辆车,北京,2019年9月)和COPERT排放模型,建立了一种车辆出行分割与碳排放估算方法,分析了车辆排放的时空分布特征。通过纳入电动汽车的生命周期评估(LCA)排放,本研究从路段和车辆电动化两个维度,提出了基于随机选择与排序优化的碳减排策略。采用仿真方法评估了四种车辆电动化结构(金字塔型、倒金字塔型、橄榄型和哑铃型)下不同策略的有效性及路网碳排放情况。结果表明,高峰时段交通拥堵导致碳排放强度显著上升。在LCA框架下,纯电动汽车(BEVs)和插电式混合动力电动汽车(PHEVs)的排放显著低于传统内燃机汽车(ICEVs)。在特定情景假设下,排序优化方案估计产生的碳减排量分别约为随机选择方案的2倍(路段控制)和3倍(电动化)。研究得出结论,将电动汽车推广政策与精准碳减排控制策略相结合,可以有效降低城市路网碳排放。

AI 翻訳(deepseek-v4-flash)。 正確を期す場合は下の原文を参照してください。

📄 Abstract(原文)

Global climate change poses a critical challenge to sustainable urban development. The construction of low-carbon transportation systems is therefore a core strategy for enhancing the sustainability of mega-city road networks. Combining the characteristics of urban road traffic networks, this paper establishes a method for vehicle trip segmentation and carbon emission estimation based on GPS trajectory data (5699 vehicles, Beijing, September 2019) and the COPERT emission model, analyzing the spatiotemporal distribution characteristics of vehicle emissions. By incorporating the Life Cycle Assessment (LCA) emissions of electric vehicles, this study proposes carbon reduction strategies based on stochastic selection and ranking-based optimization from two dimensions: road-segment and vehicle electrification. Simulation methods are employed to evaluate the effectiveness of different strategies, as well as road network carbon emissions, under four vehicle electrification structures: Pyramid, Inverted Pyramid, Olive, and Dumbbell. Results indicate that carbon emission intensity rises significantly due to traffic congestion during peak hours. Under the LCA framework, Battery Electric Vehicles (BEVs) and Plug-in Hybrid Electric Vehicles (PHEVs) show significantly lower emissions than traditional Internal Combustion Engine Vehicles (ICEVs). Under the specified scenario assumptions, the ranking-based optimization scheme is estimated to yield carbon reductions approximately 2 times (segment control) and 3 times (electrification) those of the stochastic selection scheme, respectively. The study concludes that integrating EV promotion policies with precise carbon reduction control strategies can effectively mitigate urban road network carbon emissions.

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