フィーダー乗車回数から走行距離へ：周辺地下鉄駅における方向別フィーダー活動と占有CO2排出量の評価
From Feeder-Trip Counts to Occupied Feeder Vehicle-Kilometers: Evaluating Directional Feeder Activity and Occupied-Phase CO2 for Low-Carbon Sustainability Assessment at Peripheral Metro Stations (原題)
Xianlin Li, Bin Lv, Binbin Hao, Zhenya Zhao, Hongyan Zhang
🤖 gxceed AI 要約
日本語
本研究は、蘭州地下鉄1号線の周辺駅におけるフィーダー交通（タクシー）の活動を、乗車回数ではなく走行距離（VKT）とCO2排出量で評価する。2023年6月のデータを用い、方向別の活動パターンや駅ランキングが指標により変化することを示した。また、バッテリー電気自動車への転換でCO2排出量が37.6%削減される可能性を提示し、低炭素な持続可能性評価には運行頻度・走行距離・車両技術の統合的考慮が必要と結論付けた。
English
This study evaluates feeder taxi activity at peripheral metro stations in Lanzhou using occupied vehicle-kilometers traveled (VKT) and CO2 emissions instead of trip counts. Using June 2023 data, it shows directional patterns and station rankings vary by metric. It finds that a shift to battery electric vehicles could reduce CO2 by 37.6%, concluding that low-carbon sustainability assessment should integrate service frequency, distance, and vehicle technology.
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
日本の都市交通政策では、駅周辺のラストマイル交通の脱炭素化が注目されており、本研究成果は駅勢圏のCO2モニタリング手法として参考になる。ただし、データが中国の地方都市に限定されており、日本の鉄道駅周辺への適用には地域特性の考慮が必要。
In the global GX context
This study contributes to global discourse on low-carbon urban mobility by proposing a more nuanced metric (occupied VKT) for assessing feeder transport emissions. It highlights the importance of considering distance and vehicle technology in sustainability assessments, which is relevant for cities aiming to reduce transport emissions and align with climate goals.
👥 読者別の含意
🔬研究者:Provides a methodological advancement in measuring feeder transport emissions, useful for urban transport and carbon accounting research.
🏢実務担当者:Offers insights for urban planners and transport operators on how to better monitor and reduce emissions from feeder services.
🏛政策担当者:Suggests that policies promoting electric vehicles in feeder fleets can significantly cut emissions, informing low-carbon transport strategies.
📄 Abstract（原文）
Metro feeder activity is commonly summarized by trip counts, although equal counts can correspond to different occupied distances and emissions. Using occupied taxi-trip records from 19 days in June 2023 at six purposively selected peripheral stations on Lanzhou Metro Line 1, this study links directional feeder activity, occupied distance, occupied feeder vehicle-kilometers traveled (VKT), and occupied-phase CO2. Egress dominates in the evening peak and off-peak under the three entrance-buffer specifications, whereas morning balance is buffer-sensitive; Access is more spatially concentrated than Egress. Under the 150 m reference specification, 200,493 feeder trips average 5.451 km and generate 1,092,957 km of occupied VKT. Count-proportional allocation produces station-level VKT errors from −26.7% to +22.3%; five of the six station rankings change under VKT, and top-10 count and attributed-VKT grids overlap by 6.67 of 10. At the same occupied VKT, the all-battery-electric scenario yields 82.10 t of occupied-phase CO2, 37.6% below the proxy-fleet base of 131.57 t; contextual non-occupied-VKT assumptions raise the estimate to 177.80–197.35 t. Counts and occupied VKT capture different operational dimensions. Low-carbon sustainability assessment should combine service frequency, occupied distance, and vehicle technology to support station-area carbon monitoring.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18179203first seen 2026-09-09 04:59:42
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