driver fatigue is one of the main causes of road accidents. this study aimed to estimate bus driver fatigue through performance measures in a virtual driving environment. the study was conducted on thirty professional male bus drivers participated in a two-hour drive session. the driver subjective fatigue was assessed by fatigue visual analogue scale (f-vas) on 10 min intervals. at the same tim...

example, in DVLT experiments which use 16 iterations to transition between lanes, the first MLP would be 1/16 of the total distance (along the line connecting the LCP's) away from the driving lane LCP and 15/16 from the destination LCP. The second MLP would be 1/8 and 7/8, respectively. Because the vehicle is instructed to move toward the MLP, the virtual views become misaligned with their resp...

Unsignalized intersection cooperation of connected and automated vehicles (CAVs) is able to eliminate green time loss signalized intersections improve traffic efficiency. Most the existing research on unsignalized considers fixed lane direction, where only specific turning behavior allowed each lane. Given that volume proportion with different expectation may change time, direction lead ineffic...

This study estimates a panel regression model to predict bicyclist route choice. Using GPS trajectories of 600 trips from 49 participants in spring 2006 Minneapolis, we calculate deviation, the average distance between alternative routes and actual trajectories, as dependent variable. Trip attributes, including trip length, Vehicle Kilometres Travelled (VKT), number traffic lights per kilometer...

The objectives of this manuscript are (1) to evaluate the effectiveness of on-street bicycle lane in reducing crashes involving bicyclists on urban roads, (2) to quantify and compare risk to bicyclists on road segments with and without on-street bicycle lane, (3) to evaluate the effect of on-street bicycle lane on other road network users (all crashes), and, (4) to assess the role of on-network...

The detection of road lane markings has many practical applications, such as advanced driver assistance systems and road maintenance. In this paper we propose an algorithm to detect and recognize road lane markings from panoramic images. Our algorithm consists of four steps. First, an inverse perspective mapping is applied to the image, and the potential road markings are segmented based on the...

A complete prototype system for measuring vehicle lateral position has been set up during the course of this master’s thesis project. In the development of the software, images acquired from a back-ward looking video camera mounted on the roof of the vehicle were used. The problem of using computer vision to measure lateral position can be divided into road marking detection and lateral positio...

Frequent lane-changes in highway merging, diverging, and weaving areas could disrupt traffic flow and, even worse, lead to accidents. In this paper, we propose a simple model for studying bottleneck effects of lane-changing traffic and aggregate traffic dynamics of a roadway with lane-changing areas. Based on the observation that, when changing its lane, a vehicle affects traffic on both its cu...