Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.11361/journalcpij.58.1539

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

DOI： 10.1016/j.jenvp.2023.102022

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Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

DOI： 10.2208/jscejipm.78.5_i_275

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Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.20803/jusokenronbunjisen.48.0_155

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Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

The accident risk on residential roads is higher than that of highways. Especially, the intersections on the residential roads are more dangerous because of the large number of accidents. Therefore, in order to identify the factors affecting the number of accidents per unit traffic volume (hereafter, "traffic accident risk") at the intersections, this study makes a factor analysis for the intersections in Matsuyama metropolitan area. Since there are a lot of intersections with blind corners, in addition to road structure etc. the visibility of the intersection is considered as a factor. Specifically, by combining probe data and traffic accident data, a multiple regression analysis is carried out, using the number of traffic accidents at the intersections in each area as the objective variable, and various factors including intersection visibility as explanatory variables. As a result, it is shown that the accident risk of the 4-way intersections increases where narrowed roads intersected and good and bad visible corners were mixed.

DOI： 10.2208/jscejipm.77.5_I_1093

CiNii Research

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Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

DOI： 10.2208/jscejipm.77.5_I_313

CiNii Research

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Language：Japanese   Publisher：Japan Society of Traffic Engineers  

According to the traffic accident statistics in Japan, the accident rate for expressway is around 10 times lower than that for ordinary road. Therefore, analysis of driver's attitudes toward driving on the expressways is essential in order to examine effective traffic accident risk communication intended to enhance the expressway usage. This study investigated the driver's cognitive structure toward expressway usage focusing on the attitudes toward the traffic accident using a large-scale web-based questionnaire survey of daily drivers. The results showed that the fear of driving on the expressway had a dominant impact on the intention of its usage. Also shown was that many drivers who refuse the expressway usage tend to overestimate its accident risk, and are more likely to have a fear of what might happen on the expressway. Furthermore, while they are highly aware that whether or not an accident occurs depends on their own driving, they tend to lack confidence in their driving on the expressway.

DOI： 10.14954/jste.8.2_a_265

CiNii Research

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Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)  

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Language：Japanese   Publisher：Japan Society of Traffic Engineers  

DOI： 10.14954/jsteproceeding.42.0_253

CiNii Research

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Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.11361/journalcpij.56.429

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Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

This study aims to demonstrate that driver's awareness during driving at night can be improved by attentional momentum effect. Driver's ability to be aware of pedestrians is often degraded due to the inhibition of return (hereafter, "IOR"). The IOR is the tendency that exogenous attention is suppressed toward the direction to which the driver previously referred. Previous studies have suggested that attentional momentum effect (hereafter, "AME") can relieve the effect of IOR. For example, IOR phenomenon appears when driver's exogenous attention is localized on roadside stores with high-illumination intensity. Focusing on the night-time driving, this study investigates the impact through a detection task based on dual-task setting. As a result, it was observed that the target detection was delayed under IOR condition, and the delay in target detection was improved under AME condition. This result supports that attentional momentum effect led to improve the driver's ability to be aware of objects during night time driving.

DOI： 10.1007/s13177-020-00241-2

Web of Science

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Other Link： http://link.springer.com/article/10.1007/s13177-020-00241-2/fulltext.html

Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

In this study, it was hypothesized that visual links to the river would affect attachment towards the river, and this hypothesis was verified through a questionnaire survey. In order to promote rapid evacuation of residents at the time of a flood, it is necessary to develop awareness of flood disaster prevention. In order to develop awareness of disaster prevention, it is a necessary to have attachment towards natural capital, and this attachment is developed by recalling memories that were related to that capital. Although memory in relation to natural capital is suppressed by the fear of disaster, this suppression may be reduced by ensuring a visual link to the capital. In this study, the effects of visual links to the river on residents' memories of the river and the effects of such memories on their attachment to the river were examined. The results showed that residents with fear of disasters were more likely to recall the river as their visual link to the river was better assured, and their attachment towards the river increased as they recalled more of the river.

DOI： 10.2208/jscejipm.76.5_i_409

CiNii Research

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Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

In this study, it was hypothesized that unintentional gaze bias toward shop facades would affect preference judgments, and this hypothesis was verified in a laboratory experiment. The preference for shops to which one’s gaze is directed is increased during the walking shop street. It has been shown that gaze bias is unintentionally directed toward the target that is to be preferred just previous to the preference judgment, and it has been suggested that such unintentional gaze bias may increase the preference for the target. In this study, it was examined whether the gaze is unintentionally biased toward the preferred shop facade image just previous to the judgment of preference and the effects of unintentional gaze bias towards the shop facade image that is to be preferred on shop facade preference were investigated based on a two-alternative forced-choice task. The results shows that gazes were unintentionally biased toward the shop facade images that were judged to be preferable just previous to the judgment of preference, and that unintentional gaze bias increased the confidence of preference judgments.

DOI： 10.2208/jscejipm.76.5_i_369

CiNii Research

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Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Traffic Engineers  

Lateral viewing where the directions of the head and eyes are different and the change of the lateral viewing with time interferes with attentive visual search performance because visual attention resources are divided and coordinated into head and eye directions. In this study, we hypothesize that lateral viewing and the change of the viewing affects the duration required for visual perception of road space. Specifically, we focus on the lateral viewing of pedestrians when they cross a road and analyze the effect of the lateral viewing and the change of the viewing on the search time for a target stimulus in the road space by conducting a visual search task. The results showed that the longer the time required to search time for target stimulus in the road space, the greater the lateral viewing and the greater the change of the lateral viewing with time. The results supported the above hypothesis.

DOI： 10.14954/jste.7.2_A_119

CiNii Research

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Traffic Engineers  

<p>This study aims to demonstrate that driver's cognition during driving at night can be improved by attentional momentum effect. Driver's cognition of a target often delays due to inhibition of return, which is that exogenous attention is suppressed orienting toward previously inspected locations. Previous studies have suggested that attentional momentum effect relieves inhibition of return. It is considered that driver's exogenous attention tends to be located on roadside -stores with high-illumination intensity which could cause the inhibition of return resulting in the delay in cognition of a target. This study conducts a pre-cueing task based on dual task paradigm to show attentional momentum effect relieves inhibition of return during driving at night. The response time of the attentional momentum condition was observed to be shorter than the inhibition of return condition. This result suggested that attentional momentum effect led to improve the driver's cognition during driving at night.</p>

DOI： 10.14954/jste.6.2_A_175

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Traffic Engineers  

<p>This study aims to demonstrate that driver's detection of a fallen object on an expressway can be improved by attentional disengagement. Driver's detection of a target often delays due to vigilance decrement, which is deterioration in the ability to keep attention to a target over a long period of time. Previous studies have suggested that instantaneous attentional disengagement from a target relieves vigilance decrement. It is considered that driver's attention tends to be located on a particular point in front for a long time which could cause vigilance decrement resulting in the delay in detection of a fallen object on an expressway. This study conducts a selective adaptation task to show that attentional disengagement relieves vigilance decrement during driving on an expressway. The response time of the disengaged condition was observed to be shorter than the engaged condition. This result suggested that attentional disengagement led to improve the driver's detection of a fallen object during driving on an expressway.</p>

DOI： 10.14954/jste.6.2_A_303

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

<p>The purpose of this study was to investigate the attentional engagement to the traditional Japanese-style street facades by memory driven attentional capture. When walking along the traditional Japanese-style streets, anyone has an experience that their eyes glued to the traditional Japanese-style street facades. Previous studies have suggested that the attentional engagement was facilitated for similar element that visual working memory held. From these previous studies, it was hypothesized that the visual working memory of traditional Japanese-style streets might cause the attentional engagement to traditional Japanese-style street facades and this hypothesis was examined by a visual search task. The results show that the attentional engagement to the Japanese street facade was caused by memory driven attentional capture.</p>

DOI： 10.2208/jscejipm.75.6_I_191

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Traffic Engineers  

<p>Accident risk information system aims to reduce traffic accidents by navigating drivers to the routes with lower accident risk. This study quantitatively evaluates the effect of the accident risk information provision by utilizing a dynamic traffic simulation environment – SOUND. The simulation bed is constructed to model the wide-area road network of Matsuyama, Japan. Accident risk estimation models are embedded in the simulation to calculate the timedependent route cost considering the accident risk in addition to conventional cost terms such as travel time. The simulation estimates the traffic conditions when drivers acquire the accident risk information in their route choice. The effect of the information provision system is evaluated by comparing the expected number of accidents with and without the system. The results revealed that the drivers with accident risk information prefer to use routes with lower accident risk, and the total number of accidents could reduce by up to 4%.</p>

DOI： 10.14954/jste.6.2_A_270

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Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

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Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.11361/journalcpij.54.983

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Language：English   Publishing type：Research paper (scientific journal)  

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Language：English   Publishing type：Research paper (scientific journal)  

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Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.2208/jscejaie.75.28

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Language：Japanese   Publishing type：Research paper (scientific journal)  

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Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.2208/jscejipm.75.I_277

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

DOI： 10.2208/jscejipm.75.i_1081

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Language：English   Publishing type：Research paper (scientific journal)  

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Language：Japanese   Publishing type：Research paper (scientific journal)  

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Language：Japanese   Publishing type：Research paper (scientific journal)  

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Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.2208/jscejaie.74.39

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Language：English   Publishing type：Research paper (scientific journal)  

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Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/ITSC.2018.8569285

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Language：Japanese   Publishing type：Research paper (scientific journal)  

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Traffic Engineers  

<p>This study investigates the relationship between driving experience and generalization of driver's stopping behavior. Previous research has suggested that an acquired behavior is triggered by positive reinforcement, and the same behavior is replicated by the same trigger in any situations once it is generalized. Driving behavior is a type of acquired behaviors, and therefore it is possible that a procedure in driving is generalized by accumulating driving experience. This study aims to relate the generalization of driver's stopping behavior to the driver's driving experience by comparing the stopping behavior in real space and virtual space presented by a driving simulator. The results showed that drivers with longer driving experience performed stopping behavior based on the same positive reinforcement regardless of the situations: real space or virtual space, which suggests that their stopping behavior is generalized. On the other hand, drivers with shorter driving experience did not exhibit the generalization in their behavior.</p>

DOI： 10.14954/jste.4.1_A_106

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier B.V.  

Driver's fatigue is an important factor of traffic accidents. Therefore, a fatigue detection system which achieves a small burden on a driver is expected to be developed, which stimulates drivers after long hour driving to take a rest at an appropriate timing when the driver's fatigue is detected. In order to give warning at an appropriate timing, knowledge about the impact of continuous driving hours on driver's behavior should be obtained. Recently, a rapid spread of ITS technologies enables us to analyze driving behavior in detail by using a large quantity of probe car data. This study analyses the impact of continuous driving hours on driving behavior when a vehicle is traveling on an expressway based on the probe car data. It is shown that the continuous driving hour affects driving behavior significantly. From the results, it can be concluded that driver had better take a rest every 5,000 [s]approximately.

DOI： 10.1016/j.trpro.2017.03.086

Scopus

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Traffic Engineers  

<p>This study investigates the effect on vigilance decrement on driver's cognition of road gradient at sag sections. Previous research has suggested that traffic congestion at sag sections was dependent upon that the deceleration of the vehicle driven without notice the change in road gradient at sag section propagates to followers. In psychology, persons miss recognizing the change in the target over time because of vigilance decrement, that is deterioration in the ability to remain attention for change of target over time and it is effective to avoid to maintain attention over prolonged periods time in order to reduce vigilance decrement. Therefore, the purpose of this study was to examine whether the disengagement of attention to a particular field improve the cognition of change in road gradient based on selective adaptation task. As the result, in the reaction time indicated the smoothness of the cognitive process, it was possible that attentional disengagement was caused the reduction of vigilance decrement. These results suggested that it led to improve the driver's cognition of road gradient to disengage attention in proper time.</p>

DOI： 10.14954/jste.3.2_A_109

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Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.2208/jscejaie.72.13

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

The past study shows that the impression value of some view pictures is affected by the view picture presented just before. In this research, by focusing the amount and type of goods displayed the shop facade, the presentation conditions of two or more facades of having assumed the sequence scene of the street were set up. And the anchoring effect with those facades, and its differences by the facade kind were verified. It was clarified that the recognition of the facade changed relatively by the comparison and the adaptation by anchoring effect, as a result of the impression rating experiment. Moreover, it became clear that the effect tended to increase by the conditions that similar facades are presented continuously.

DOI： 10.2208/jscejaie.71.83

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Civil Engineers  

The study investigated the time course of attentional biases for a shop facade in each attentional engagement and disengagement by using a forced-choice reaction time (RT) version of the dot probe task. The shop facades differing in the level of affective valence and amount of displayed goods were presented as prime stimuli at two exposure durations. The results showed that attentional bias varied depending on the valence and as function of the time course in the cognitive processing of a shop facade. These findings might provide the evidence of selective attentional biases towards physical saliency of the shop facade in early attention and positive affective valence of shop facade in late attentional process.

DOI： 10.2208/jscejaie.71.71

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Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.2208/jscejaie.69.90

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Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

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J-GLOBAL

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CiNii Books

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Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

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J-GLOBAL

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Event date： 2024.5

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Event date： 2022.11

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