Estimating Lane Change Duration for Overtaking in Nonlane-Based Driving Behavior by Local Linear Model Trees (LOLIMOT)

Ehsan Ramezani-Khansari,Fereidoon Moghadas Nejad,Masoud Tabibi,Lazim Abdullah

doi:10.1155/2021/4388776

Ehsan Ramezani-Khansari, Fereidoon Moghadas Nejad + Show 2 more

Open Access

https://doi.org/10.1155/2021/4388776

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Abstract

Lane change (LC) is one of the main maneuvers in traffic flow. Many studies have estimated LC duration directly by using lane-based data. The current research presents an estimate of LC duration for overtaking maneuver in nonlane-based traffic flow. In this paper, the LC duration is estimated implicitly by modeling lateral speed and applying the length of required lateral movement to complete the LC maneuver. In lateral speed modeling, the local linear model tree is applied which consists of three variables: the initial lateral distance, longitudinal speed, and time to collision (TTC), which itself is a function of the relative speed of follower and the distance between the two vehicles. The initial lateral distance is the relative transverse distance from which the following vehicle initializes the LC. The range of lateral speed was estimated between 0.5 and 5 km/h, which resulted in the LC duration between 2.5 and 24 sec. The results indicate that the lateral and longitudinal speed would be inversely related, while the lateral speed and the initial transverse distance as well as TTC would be directly related. The findings also indicate that TTC can be assumed as the most important factor affecting lateral speed. TTC at 8 sec can be considered as the threshold for its effect on the LC duration since at longer TTCs, and the lateral speed has remained almost constant. When TTC is longer than 8 sec, it would not affect the LC duration.

Highlights

Lane change (LC) maneuvre is referred to as a driving maneuvre in which a vehicle moves from current lane to another where both of them are in same direction
Studying LC duration in nonlane-based traffic flow is much difficult than lanebased because drivers do not consider road markings and lanes
By estimating LC duration indirectly, the estimate will be dependent on the microscopic characteristics of traffic flow rather than macroscopic characteristics, which make the estimation more specific for each vehicle and is more accurate

Summary

Introduction

LC maneuvre is referred to as a driving maneuvre in which a vehicle moves from current lane to another where both of them are in same direction. Investigating LC behavior helps the traffic engineers to better estimate, predict, and plan for traffic flow. Due to the importance of the LC maneuver in traffic flow, many researchers have studied its modeling and decision-making process [2,3,4,5]. Finnegan and Green reported that lane-changing takes between 4.9–7.6 sec depending on the traffic condition and direction of lane-changing [6]. Hetrick used an instrumented vehicle to investigate LC behavior. E range of LC duration was measured about 3.4–13.6 sec by navigating 16 drivers to a predefined route. Results driven from 42 drivers in the research indicated that LC duration was about

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