Environmental analysis of the operation of electric vehicles in public transport systems
公共交通システムにおける電気自動車運行の環境分析 (AI 翻訳)
Gabriel Rodrigues, João Reis, Marcelo Okano, Sivanilza Machado, O Orynycz, Jonas Matijosius, Acácio Neto, Antonio Márcio, Paula Correia
🤖 gxceed AI 要約
日本語
本研究は、トロリーバスの環境性能を評価し、サンパウロとビリニュスでのケーススタディを通じて、電力の炭素強度が排出量に大きく影響することを示した。Well-to-Tankアプローチを用いて、ゼロエミッション車でも電力源によって間接排出が変わることを明らかにした。このフレームワークは、実際の環境性能を評価するのに有用である。
English
This study evaluates the environmental performance of trolleybus systems in São Paulo and Vilnius using a Well-to-Tank approach. It finds that indirect GHG emissions vary significantly with the carbon intensity of the regional electricity mix, highlighting that electrification alone does not guarantee low emissions. The framework can be replicated to assess real environmental performance of electric public transport.
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
日本の公共交通電化政策においても、電力構成の考慮は重要。EVバス導入時にScope2排出の実態評価が求められ、SSBJとの整合性も課題となる。
In the global GX context
This paper reinforces that transport electrification must be coupled with grid decarbonization, aligning with global Scope 2 accounting under GHG Protocol and ISSB standards. It provides a replicable methodology for assessing real-world emissions.
👥 読者別の含意
🔬研究者:Provides a replicable WTT framework for evaluating electric public transport emissions across different electricity grids.
🏢実務担当者:Transport operators can use this approach to assess the actual environmental benefits of fleet electrification and inform procurement decisions.
🏛政策担当者:Highlights the need for coordinated transport and energy policies to achieve real emission reductions from electrified public transport.
📄 Abstract（原文）
The transition toward sustainable urban mobility requires not only the electrification of public transport systems but also a critical assessment of the electricity sources that supply these technologies. This study evaluates the environmental performance of trolleybus systems by integrating operational data with the regional electricity generation mix in which they operate. A Wellto-Tank (WTT) approach is applied, assuming zero Tank-to-Wheel (TTW) emissions, to compare trolleybus operations in two distinct urban contexts: São Paulo (Brazil) and Vilnius (Lithuania). The methodology combines average energy consumption per kilometer with regional electricity carbon intensity data to estimate indirect greenhouse gas (GHG) emissions associated with vehicle operation. The results indicate that the environmental performance of trolleybus systems varies significantly according to the carbon intensity of the electricity supply. In São Paulo, where renewable and low-carbon sources dominate the electricity matrix, trolleybus operations result in substantially lower emissions per kilometer. In contrast, higher electricity carbon intensity in Vilnius leads to increased indirect emissions, despite the use of equivalent zero-emission vehicles. These findings demonstrate that electrified public transport does not automatically guarantee low overall emissions and highlight the importance of aligning transport electrification policies with broader energy transition strategies. By linking fleet operation data with regional electricity matrices, this study provides a replicable framework for assessing the real environmental performance of electric public transport systems.
🔗 Provenance — このレコードを発見したソース
- openalex http://hdl.handle.net/10317/24106first seen 2026-07-22 04:50:16
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