@article{ref1,
title="Capacity-drop at extended bottlenecks: merge, diverge, and weave",
journal="Transportation research part B: methodological",
year="2018",
author="Chen, Danjue and Ahn, Soyoung",
volume="108",
number="",
pages="1-20",
abstract="This paper investigates the mechanisms of how spatially distributed lane changes (LCs) interact and contribute to &quot;capacity-drop&quot; at three types of extended bottlenecks: merge, diverge, and weave. A hybrid approach is used to study the problem: analytical approach to capture the behavior of merging and diverging LCs and numerical simulations to quantify capacity-drop considering various geometric configurations of extended bottlenecks. This study focuses on the impact of LC vehicles' bounded acceleration on &quot;void&quot; (wasted space) creation in traffic streams when they insert/desert at a lower speed, and interactions among multiple voids. We found that (1) LCs closer to the downstream end of bottlenecks are more likely to create persisting voids and contribute to capacity-drop. (2) For weave bottlenecks, capacity-drop is governed by two counteracting effects of LCs: persisting voids and utilization of vacancies created by diverging vehicles; (3) the more balanced the merging and diverging flows, the lower the capacity-drop; and (4) capacity-drop is minimum if merging LCs occur downstream of diverging LCs, and maximum in the opposite alignment.<p /> <p>Language: en</p>",
language="en",
issn="0191-2615",
doi="10.1016/j.trb.2017.12.006",
url="http://dx.doi.org/10.1016/j.trb.2017.12.006"
}