Roadway carbon emissions and intensities with pavement thickness incorporated
舗装厚を考慮した道路の炭素排出量と排出強度 (AI 翻訳)
陈淑儿, Andrew S. Chang, Chen Ho, Calista Y. Tsai
🤖 gxceed AI 要約
日本語
23件の道路事例を対象に、舗装厚を考慮した炭素排出量と面積当たり排出強度を算定。平均排出量は16,368 tCO2e、平均強度は276 kgCO2e/m2。舗装体積は面積より排出量と強い相関（r=0.885）を示し、適切な機能単位と結論。舗装厚の考慮により排出強度は最大128.6%増加、67.3%減少し、評価結果が大きく変わり得ることを実証。
English
This study quantifies carbon emissions and area-based emission intensities for 23 road projects, showing average emissions of 16,368 tCO2e and intensity of 276 kgCO2e/m2. Pavement volume correlates more strongly with emissions (r=0.885) than area (r=0.412), making volume a better functional unit. Including pavement thickness changes calculated intensity by -67.3% to +128.6%, highlighting the importance of this variable.
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
日本でも公共インフラ建設の脱炭素評価が進む中、舗装厚を織り込んだ排出原単位の考え方は、国土交通省のCO2排出量算定や自治体のグリーン公共調達に示唆を与える。アジアの事例データとして比較検討にも有用。
In the global GX context
As construction-sector emissions gain attention in TCFD/ISSB-aligned reporting and green procurement frameworks, this study provides a methodological reminder that functional-unit choices (area vs. volume) and pavement thickness materially affect carbon intensity metrics for infrastructure projects.
👥 読者別の含意
🔬研究者:Provides empirical evidence on functional unit selection for road carbon accounting.
🏢実務担当者:Construction firms can adopt pavement-volume-based intensity for environmental reporting and bidding on low-carbon projects.
🏛政策担当者:Supports setting standardized emission intensity metrics for road infrastructure procurement.
📄 Abstract（原文）
Studies calculating the carbon emissions or the emission intensity per functional unit (FU) of road projects have focused on one or only a few cases without considering the influence of pavement thickness on carbon emissions and intensity. This study investigated the carbon emissions of roadways and explored the effect of pavement thickness on area-based carbon emission intensity. It classified the attributes of 23 road cases; calculated the carbon emissions of roadway; identified the factors affecting carbon emissions; and finally evaluated emission intensities by area. The average carbon emissions for the 23 cases were 16,368 tCO2e, and the carbon emission intensity by area was 276 kgCO2e/m2. Emissions differed by road type, structure, and materials. The correlation coefficient between road area and carbon emissions was 0.412, whereas that between pavement volume and carbon emissions was 0.885. Thus, pavement volume is a more suitable FU for representing carbon emissions for road projects compared with pavement area. The carbon emissions per square meter were found to be up to 128.6% greater or 67.3% smaller when pavement thickness was incorporated into the calculation. Thus, estimated emission intensity varies widely depending on whether pavement thickness is incorporated.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1080/02533839.2026.2707395first seen 2026-08-01 05:48:22
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