RESEARCH ARTICLE
Comparative and Microscopic Analysis of Vehicle Startup Behavior in Red Countdown Traffic Lights with Various Display Forms
Motohiro Fujita1, *
Article Information
Identifiers and Pagination:
Year: 2024Volume: 18
E-location ID: e26671212279478
Publisher ID: e26671212279478
DOI: 10.2174/0126671212279478240105114915
Article History:
Received Date: 04/09/2023Revision Received Date: 21/11/2023
Acceptance Date: 11/12/2023
Electronic publication date: 22/01/2024
Collection year: 2024
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Background
Countdown-type traffic lights provide drivers with the time remaining before the signal turns green or red. Most countdown devices inform the drivers of the exact signal switching time numerically on a display form. This study focuses on two vehicle startup behaviors when a red signal phase countdown (RC) is displayed: a premature start (PS) and an early reaction (ER). The PS is a vehicle crossing the stop line before the green phase, and the ER is a vehicle starting to move before the green phase. While there are many studies on PS rates under RC, there are only a few studies on ER rates. There are also few studies that have analyzed the relationship between the PS and ER rates and the display forms of RC have also been analyzed in terms of micro-behavior.
Objective
This study microscopically analyzes the ER and PS by including data within 1 second at signal switching while comparing 10 types of display forms in RC in order to obtain the ideas of safer and more efficient display forms in signal countdown.
Methods
We conducted the experiments with RC traffic lights of different display forms, and the surveys of no countdown (NC).
Results
From the very limited conditions of the experiment, we found that there is a threshold at which the ER rates in RC and NC differ significantly.
Conclusion
We were also able to analyze the basic characteristics related to the display forms of RC, which is a quick start and which reduces PS and ER.