Identification of Visual Cues and Quantification of Drivers Perception of Proximity Risk to the Lead Vehicle in Car-Following Situations
スポンサーリンク
概要
- 論文の詳細を見る
Longitudinal vehicle control and/or warning technologies that operate in accordance with drivers subjective perception of risk need to be developed for driver-support systems, if such systems are to be used fully to achieve safer, more comfortable driving. In order to accomplish this goal, it is necessary to identify the visual cues utilized by drivers in their perception of risk when closing on the vehicle ahead in a car-following situation. It is also necessary to quantify the relation between the physical parameters defining the spatial relationship to the vehicle ahead and psychological metrics with regard to the risk perceived by the driver. This paper presents the results of an empirical study on quantification and formulization of drivers subjective perception of risk based on experiments performed with a fixed-base driving simulator at the Nissan Research Center. Experiments were carried out to investigate the subjective perception of risk relative to the headway distance and closing velocity to the vehicle ahead using the magnitude estimation method. The experimental results showed that drivers perception of risk was strongly affected by two variables: time headway, i.e., the distance to the lead vehicle divided by the following vehicles velocity, and time to collision, i.e., the distance to the lead vehicle divided by relative velocity. It was also found that an equation for estimating drivers perception of risk can be formulated as the summation of the time headway inverse and the time to collision inverse and that this expression can be applied to various approaching situations. Furthermore, the validity of this equation was examined based on real-world driver behavior data measured with an instrumented vehicle.
論文 | ランダム
- 単個菌分離より得たINH耐性株の耐性変動に関する研究-1・2-
- Contribution of heat shock proteins to cell protection from complement-mediated lysis
- Mineralogical and chemical composition and distribution of rare earth elements in clay-rich sediments from central Uganda
- Optical Effects of Nonmetallic Post and Core System on All Ceramic Crowns
- 24pPSA-23 FeRh_Pt_x合金の三重点近傍における磁気相転移