Stay in your lane: Density fluctuations in multi-lane traffic

IF 1.8 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

EPL Pub Date : 2024-01-08 DOI:10.1209/0295-5075/ad1c05

Jeremy Worsfold, Tim Rogers

引用次数: 0

Abstract When a new vehicle joins a lane, those behind may have to temporarily slow to accommodate them. Changing lane can be forced due to lane drops or junctions, but may also take place spontaneously at discretion of drivers, and recent studies have found that traffic jams and traffic oscillations can form even without such bottlenecks.Understanding how lane changing behaviour affects traffic flow is important for learning how to design roads and control traffic more effectively.Here, we present a stochastic model of spontaneous lane changing which exhibits a reduction in the overall flow of traffic. By examining the average flow rate both analytically and through simulations we find a definitive slow down of vehicles due to random switching between lanes. This results in the fundamental diagram depending on the rate of lane switching.By extending the model to three lane traffic we find a larger impact on the flow of the middle lane compared to the side lanes.

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保持在自己的车道上：多车道交通中的密度波动

变道可能是由于车道下降或路口而被迫进行的，但也可能是驾驶员自发进行的，最近的研究发现，即使没有这种瓶颈，也会形成交通堵塞和交通振荡。了解变道行为如何影响交通流对于学习如何更有效地设计道路和控制交通非常重要。在这里，我们提出了一个自发变道的随机模型，该模型显示了交通总体流量的减少。通过分析和模拟检查平均流量，我们发现由于车道之间的随机切换，车辆的速度明显减慢。这导致基本图取决于车道切换的速度。通过将模型扩展到三车道交通，我们发现与边车道相比，中间车道的流量受到的影响更大。

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

EPL 物理-物理：综合

CiteScore

3.30

自引率

5.60%

发文量

332

审稿时长

1.9 months

期刊介绍： General physics – physics of elementary particles and fields – nuclear physics – atomic, molecular and optical physics – classical areas of phenomenology – physics of gases, plasmas and electrical discharges – condensed matter – cross-disciplinary physics and related areas of science and technology. Letters submitted to EPL should contain new results, ideas, concepts, experimental methods, theoretical treatments, including those with application potential and be of broad interest and importance to one or several sections of the physics community. The presentation should satisfy the specialist, yet remain understandable to the researchers in other fields through a suitable, clearly written introduction and conclusion (if appropriate). EPL also publishes Comments on Letters previously published in the Journal.