基础和流量 (BSFR) 和它对预定信号交叉路口与非车道城市异质交通交叉路口的性能的影响
Sugiarto Sugiarto1,2, Sofyan M Saleh1, Yusria Darma1
1Civil Engineering Department, Universitas Syiah Kuala, Banda Aceh, Indonesia.
PloS one
|July 5, 2024
概括
准确估计基和流量 (BSFR) 对于印尼的交通管理至关重要. 这项研究开发了一种新的BSFR模型,用于计算异质流量和非车道的流动,从而改善了信号交叉点的容量预测.
科学领域:
- 运输工程 运输工程
- 交通流理论的流量理论.
- 城市规划 城市规划
背景情况:
- 在印度尼西亚等发展中国家的城市中,预制信号交叉路口很常见,但由于不同的交通模式,往往会造成拥堵.
- 基于非车道 (NLB) 的交通和异质的车辆组成使准确的交通流分析和容量估计变得复杂.
- 由于这些复杂性,现有的模型,如印度尼西亚高速公路容量手册 (IHCM),可能会低估基和流速 (BSFR).
研究的目的:
- 为BSFR开发和验证一种新的建模方法,该方法包含异质流量和NLB流动.
- 调查交叉路口几何和交通组成对SFR在印度尼西亚班达阿切特有的背景下的影响.
- 提供在信号交叉点进行容量估计的改进方法,以减少拥堵和延误.
主要方法:
- 在班达阿切 (Banda Aceh) 的信号交叉路口收集初级和观察到的交通数据.
- 制定了一个BSFR模型,专门针对NLB移动和异质流量.
- 使用多重线性回归来估计BSFR模型的尺度参数.
- 将拟议模型的性能与现有的IHCM公式进行了比较.
主要成果:
- 由于低估了乘用车等价值 (PCE) 的原因,现有的IHCM公式提供了BSFR的大幅偏差估计.
- 与NLB运动的异质流量流量有助于当前IHCM的不准确性.
- 使用新的PCEs提出的BSFR预测模型与IHCM相比,显示出更高的准确性.
- 对于超过4.5米的有效接近宽度 (We),IHCM的高估值被注意到.
结论:
- IHCM需要通过修订的PCE或BSFR公式校准进行调整,以提高印尼城市交通条件的准确性.
- 开发的BSFR模型提供了更高的预测准确性,从而使得信号交叉口的产能估计更可靠.
- 实施这些改进的模型可以支持更好的交通运营,缓解拥堵,减少城市地区的延误.
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