Is a dedicated bus lane operationally and environmentally beneficial? A case study in Beijing

IF 3.3 3区工程技术 Q2 TRANSPORTATION

Transportation Letters-The International Journal of Transportation Research Pub Date : 2025-08-09 DOI:10.1080/19427867.2024.2439349

Qiyuan Jiang , Yizheng Wu , Jian Sun , Yuxin Wang , Shuochen Zhang , Lewen Wang , Weinan He

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引用次数: 0

Abstract

In 2023, Beijing adjusted dedicated bus lane (DBL) policies, allowing private car access during specific periods to improve road transport efficiency. This study proposes a comprehensive method to assess the operational and environmental impact of DBL adjustments. Traffic volumes are estimated using a localized traffic fundamental diagram model based on large-scale floating car speed data, while vehicle emissions are quantified employing a high-resolution road network emission inventory. Results show over 20% increased traffic volumes and 10% higher average speed on DBLs in central Beijing. Extended to regional road network, the adjustments enhance expressway capacity and improve traffic efficiency on main and minor arterial roads. While total emissions on expressways increase due to heightened traffic volumes, average vehicular emission intensities in urban areas decrease because of smoother traffic flow. These findings could provide valuable insights for decision-makers with the information needed to target reasonable DBL policies in metropolitan regions.

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巴士专用道对营运及环境是否有利？以北京为例

2023年，北京调整了公交专用道（DBL）政策，允许私家车在特定时间段通行，以提高道路运输效率。本研究提出一种综合的方法来评估DBL调整对业务和环境的影响。使用基于大规模浮动车速数据的局部交通基本图模型估计交通量，而使用高分辨率道路网络排放清单量化车辆排放量。结果显示，北京市中心高速公路的交通量增加了20%以上，平均速度提高了10%。调整延伸到区域路网，增强了高速公路的通行能力，提高了主干道和次要干道的交通效率。虽然高速公路上的总排放量由于交通量的增加而增加，但城市地区的平均车辆排放强度由于交通流量的畅通而降低。这些发现可以为决策者提供有价值的见解，为大都市地区制定合理的DBL政策提供必要的信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Transportation Letters-The International Journal of Transportation Research TRANSPORTATION SCIENCE & TECHNOLOGY-

CiteScore

6.40

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： Transportation Letters: The International Journal of Transportation Research is a quarterly journal that publishes high-quality peer-reviewed and mini-review papers as well as technical notes and book reviews on the state-of-the-art in transportation research. The focus of Transportation Letters is on analytical and empirical findings, methodological papers, and theoretical and conceptual insights across all areas of research. Review resource papers that merge descriptions of the state-of-the-art with innovative and new methodological, theoretical, and conceptual insights spanning all areas of transportation research are invited and of particular interest.