How do the recognizability and driving styles of automated vehicles affect human drivers’ gap acceptance at T- Intersections?

Future traffic will be composed of both human-driven vehicles (HDVs) and automated vehicles (AVs). To accurately predict the performance of mixed traffic, an important aspect is describing HDV behavior when interacting with AVs. A few exploratory studies show that HDVs change their behavior when interacting with AVs, being influenced by factors such as recognizability and driving style of AVs. Unsignalized priority intersections can significantly affect traffic flow efficiency and safety of the road network. To understand HDV behavior in mixed traffic at unsignalized priority T-intersections, a driving simulator experiment was set up in which 95 drivers took part in it. The route in the driving simulator included three T-intersections where the drivers had to give priority to traffic on the major road. The participants drove different scenarios which varied in whether the AVs were recognizable or not, and in their driving style (Aggressive or Defensive). The results showed that in mixed traffic having recognizable aggressive AVs, drivers accepted significantly larger gaps (and had larger critical gaps) when merging in front of AVs as compared to mixed traffic having either recognizable defensive AVs or recognizable mixed AVs (composed of both aggressive and defensive). This was not the case when merging in front of an HDV in the same scenarios. Drivers had significantly smaller critical gaps when driving in traffic having non-recognizable aggressive AVs compared to non-recognizable defensive AVs. The findings suggest that human drivers change their gap acceptance behavior in mixed traffic depending on the combined effect of recognizability and driving style of AVs, including accepting shorter gaps in front of non-recognizable aggressive AVs and changing their original driving behavior. This could have implications for traffic efficiency and safety at such priority intersections. Decision makers must carefully consider such behavioral adaptations before implementing any policy changes related to AVs and the infrastructure.     

How the Free Spirit Became Free: Sickness and Romanticism in Nietzsche's 1886 Prefaces

This paper explores Nietzsche's account of the free spirit's genesis, as primarily given in the 1886 prefaces written for the works of his ‘free spirit trilogy’. In particular, it will focus on how what will be argued is the free spirit's distinguishing capacity for radical questioning is created out of the process described there. That is, it will examine how what Nietzsche calls, ‘the experience of sickness’, in enabling the free spirit's liberation, helps forge a mode of philosophical awareness which is not otherwise attainable. However, the second half of this paper goes on to explore how the success of this process is endangered by a certain psychological tendency to which free spirits are susceptible. In other words, the free spirit's chance of enduring those painful depths of sickness necessary for liberation is threatened by the appeal of ‘romantic pessimism’; a perspective which offers consolation by idealizing the sufferer's state. As such, then, in our final section, we will examine Nietzsche's efforts to combat this phenomenon. In particular, we will look at his advocacy of a specific kind of asceticism for this purpose, and with it his attempt to show how a true liberation of the spirit can be achieved.     

Nietzsche on the health of the soul

Abstract

Health (particularly of the soul [Seele]) is a central concept in Nietzsche’s work. Yet in the most philosophically sophisticated secondary literature on Nietzsche, there has been fairly little sustained treatment of just what Nietzschean health consists in. In this paper, I aim to provide an account of some of the central marks of this health: resilience, discipline, vitality, a certain positive condition of the will to power, a certain tendency toward integration, and so on. This exposition and discussion will be the main task of the paper. Then in the concluding section of the paper, I consider a line taken in some related secondary literature, which would suggest that health might ultimately be understood in formal or dynamic terms, relating to one’s will to power and/or the unity of one’s drives. I will present the beginnings of an argument against such an account of health. In focusing on the formal and dynamic side exclusively, it cannot get the full story. In particular, it seems to me to miss the substantive dimension that is essential if we are to understand health properly. As I shall suggest, the core concept of Nietzschean health is not fully explicable except by reference to normative terms.     

Conflicts of interest: The implications of roadside advertising for driver attention

There is growing concern that roadside advertising presents a real risk to driving safety, with conservative estimates putting external distractors responsible for up to 10% of all road traffic accidents. In this report, we present a simulator study quantifying the effects of billboards on driver attention, mental workload and performance in Urban, Motorway and Rural environments. The results demonstrate that roadside advertising has clear adverse effects on lateral control and driver attention, in terms of mental workload. Whilst the methodological limitations of the study are acknowledged, the overriding conclusion is that prudence should be exercised when authorising or placing roadside advertising. The findings are discussed with respect to governmental policy and guidelines.     

On the connection between sickness and sin: a commentary.

In response to the articles by Eibach and Groenhut in this issue, I argue that there is a general connection between sickness and the entrance of sin into the world. There are times when there is a causal link between more specific sin and sickness, though often the patient is the one who has been sinned against. Illness can also expose sin in a patient's life. Integrating the reality of illness into the life history of a patient is a significant pastoral care issue and can be done with humility and sensitivity if done in accordance with the teaching of Job and Ecclesiastes. These books argue that "under the sun" or this side of eternity, human beings can't grasp the coherence of life, including the "why" of illness. Rather, God provides His loving presence, through His people as a comfort to those suffering from illness.     

Route learning with augmented reality navigation aids

Current trends point towards the development and implementation of augmented reality (AR) navigation assistance systems for drivers. Previous research has found augmented reality can benefit driving performance, but the impact of AR on route learning (spatial knowledge acquisition) has received less attention. The current study used simulated driving scenarios to determine how the type of navigation aid device used (i.e., paper map, electronic map, and AR system) affected driving performance and route learning of 62 driving adults. Route learning was examined at landmark, route, and survey levels. The hypotheses tested were that AR would improve driving performance but diminish route learning compared to paper map use; and that AR would outperform electronic map use in both driving performance and route learning. Results indicated that paper map use led to poorer driving performance and greater route learning. However, map recognition may have been a confounding factor in higher level spatial knowledge acquisition with paper map use. Driving performance and route learning were similar for drivers using the electronic map and AR, but some differences suggested that drivers have reduced uncertainty and hesitation while using AR to navigate in unfamiliar areas.     

Relationship between driving styles and biological behavior of drivers in negative emotional state

ObjectiveThis paper explores the links between driving style and the biological behavior of people while driving with dangerous negative emotions (such as anger, anxiety, and fear).BackgroundIt is highly important to study the behavior of humans from varying aspects to discover the factors affecting it. Driving style, as one of the critical aspects of the human factor, and biological behavior, as a factor influencing the performance of individuals, motivate us to examine the relationship between the two.MethodFor this purpose, a test was designed to record the biological signal data, namely, the Electrocardiogram (ECG), Electroencephalogram (EEG), Electromyogram (EMG), and Electrodermal activity (EDA), in a driving simulator with driving events prompting negative emotions. The Multidimensional Driving Style Inventory (MDSI) was employed to determine the driving style of participants.ResultsCorrelation analysis was engaged for data analysis. The results showed, firstly, a significant relationship between the participants’ driving style and their biological behavior and, secondly, the highest correlation between the EEG signal and driving style. Moreover, participants with a nervous and anxious style showed maximum change in biological behavior, while those with a reckless style displayed minimum alterations in biological behavior at the time of unpleasant events during driving.ConclusionConduction of such research can help better understand the behavior of different people while facing unpleasant driving events.     

Can driving condition prompt systems improve passenger comfort of intelligent vehicles? A driving simulator study

The main trend in the development of intelligent vehicles has been on ensuring comfort, safety, efficiency, and environmental sustainability. However, current research focuses primarily on the safety and energy saving of intelligent vehicles, and a comfortable driving experience through a human–machine interaction system has not been sufficiently investigated. This study used a high-fidelity 6-degree-of-freedom driving simulator to evaluate the impact of an independently-designed vehicle driving condition prompt (DCP) systems on subjective passenger comfort and motion sickness. The experiment showed that when future driving information is obtained through the vehicle DCP systems, the passengers' subjective comfort is improved, motion sickness is alleviated, and the degree of passenger posture instability is reduced. These conclusions contribute toward improving the comfort of autonomous vehicles and providing a reference for the future design of human–machine interaction systems for intelligent vehicles.