• Title/Summary/Keyword: driving safety

Search Result 1,456, Processing Time 0.034 seconds

Comparative Analysis of the Psychological State and Driving Safety for Driving within the Platoons of Trucks by Drivers Driving Performance (화물차 군집주행 간격에 따른 운전자의 운전수행능력별 심리상태 및 주행안전성 비교 연구)

  • Park, Hyun jin;Park, Jae beom;Lee, Ki young;Song, Chang jun
    • The Journal of The Korea Institute of Intelligent Transport Systems
    • /
    • v.20 no.6
    • /
    • pp.147-161
    • /
    • 2021
  • The purpose of this study was to investigate the psychological state and driving safety of drivers driving around the truck platoon driving. Using the driving simulator, the experimental environment was constructed with the situation of changing lanes to the platoon and driving within the platoon. We tried to qualitatively and quantitatively analyze the driver's psychological state and driving safety through simulation driving experiments. As a result, in the case of the older driver group, there were many cases where they judged themselves to be driving safely, even though they were driving dangerously in the actual lane change to the platoon or driving within the platoon. In particular, this group showed that the narrower the distance between vehicles, the greater the misrecognition. The results of this study are expected to be useful in deriving the optimum interval when the interval between platooning of trucks needs to be temporarily extended.

Comparative Analysis of Requirements for Information Presentation on In-vehicle Display Systems by Driving Career (운전 경력에 따른 차량 내 디스플레이 정보표시 요구사항 비교)

  • Gu, Bo Ram;Ju, Da Young
    • Transactions of the Korean Society of Automotive Engineers
    • /
    • v.24 no.6
    • /
    • pp.668-676
    • /
    • 2016
  • The accelerated convergence of automobiles and ICT has led to an increase in in-vehicle electronic devices designed to enhance the safety and convenience of drivers. Consequently, the information presentation on in-vehicle display systems for drivers and passengers need to be taken into account in order to guarantee driving stability while satisfying the needs of UX-based design users. This study compared and evaluated requirements for information items shown on in-vehicle displays regarding driving safety and convenience by groups according to driving career. A total of 38 information items related to safety and convenience that can be displayed while driving and pulling over were collected. Their level of necessity was tested and evaluated by 234 drivers. Using the results, we conducted a comparative analysis on the requirements for information presentation on in-vehicle display systems by groups according to driving career.

A Study on V2X Modeling for Virtual Testing of ADS Based on MIL Simulation (MILS 기반 ADS 기능 검증을 위한 V2X 모델링에 관한 연구)

  • Seong-Geun Shin;Jong-Ki Park;Chang-Soo Woo;Chang-Min Ye;Hyuck-Kee Lee
    • Journal of Auto-vehicle Safety Association
    • /
    • v.15 no.3
    • /
    • pp.34-42
    • /
    • 2023
  • Simulation-based virtual testing is known to be a major requirement for verifying the safety of autonomous driving functions. However, in the simulation environment, there is a difficulty in that all driving environments related to the autonomous driving system must be realistically modeled. In particular, C-ITS (Cooperative-Intelligent Transport Systems) is essential for urban autonomous driving of Lv.4, but the approach to modeling for C-ITS service in the MILS (Model in the Loop Simulation) environment is not yet clear. Therefore, this paper aims to deal with V2X (Vehicle to Everything) modeling methods to effectively apply C-ITS-based autonomous cooperative driving services in the MILS environment. First, major C-ITS services and use cases for autonomous cooperative driving are analyzed, and a modeling method of V2X signals for C-ITS service simulation is proposed. Based on the modeled V2X messages, the validity of the proposed approach is reviewed through simulations on the C-ITS service use case.

Characteristics of Bearing Capacity and Reliability-based Evaluation of Pile-Driving Formulas for H Pile (H-pile의 지지력 특성 및 동역학적 공식의 신뢰도 평가)

  • 오세욱;이준대
    • Journal of the Korean Society of Safety
    • /
    • v.18 no.1
    • /
    • pp.81-88
    • /
    • 2003
  • Recently, pile foundations were constructed in rough or soft ground than ground of well condition thus it is important that prediction of ultimate bearing capacity and calculation of proper safety factor applied pile foundation design. This study were performed to dynamic loading tests for the thirty two piles at four different construction sites and selected pile at three site were performed to static loading tests and then compare with measured value and value of static and dynamic loading tests. The load-settlement curve form the dynamic loading tests by CAPWAP was very similar to the results obtained from the static load tests. Based on dynamic and static loading tests, the reliability of pile-driving formula were analyzed and then suggested with proper safety factor for prediction of allowable bearing capacity in this paper.

A Development and Application of Driving Simulator for Road Safety Analysis (도로안전성 분석을 위한 도로주행 시뮬레이터 개발 및 응용)

  • Kim Jong-min;Noh Kwan-sub
    • Proceedings of the Korea Society for Simulation Conference
    • /
    • 2005.11a
    • /
    • pp.138-143
    • /
    • 2005
  • In order to reduce traffic accident, the interaction between drivers and roads should be studied in drivers' behaviour standpoints, and then this must be applied to the establishment of the road design standard. The K-ROADS(KICT-Road Analysis Driving Simulator) was developed to analyze and evaluate the road safety at the project HuRoSAS(Human & Road Safety Analysis System), since 2003. This has two distinct functions. One is the visual system which has 360 degree F.O.V. to reduce a dead angle on black spots as at-grade intersection. The other is the motion system which reproduce high frequency vibration made in irregular road surface and vehicle's motion. The K-ROADS has been used the study on the effect of alternatives of speed hump, and the study on the interior wall design of long tunnel to safety standpoints.

  • PDF

Study of Restraint System Computational Model and Occupant Behavior for Vehicle Occupant Protection (자동차 승객보호를 위한 안전장치 해석모델 및 승객거동 연구)

  • Han, Kyeonghee;Shin, Jaeho;Kim, Kyungjin;So, Young Myung;Kim, Siwoo
    • Journal of Auto-vehicle Safety Association
    • /
    • v.13 no.4
    • /
    • pp.99-105
    • /
    • 2021
  • Vehicle occupant postures are anticipated to vary more widely during automated driving and to become more significant in terms of the autonomous vehicle safety. Experimental and computational approaches are needed to investigate and evaluate occupant behaviors during automated driving in general. However the validity and effect of such occupant postures are unknown, thus it is necessary to examine occupant behaviors and injury countermeasures for various occupant postures. This study was focused on the development and evaluation of restraint system model for occupant behavior examinations in the first step according to autonomous vehicle occupant safety. The finite element models of dummy and restraint system were set up and simulation results showed overall model performance and safety tolerances of different reclined occupant postures during frontal impact loading.

The Effects of Goal-setting on Eco-driving Behaviors (목표 설정이 에코 드라이빙 행동에 미치는 효과)

  • Choi, Shin-Jeong;Lee, Kye-Hoon;Choi, In-Sub;Oah, She-Zeen
    • Proceedings of the Safety Management and Science Conference
    • /
    • 2011.04a
    • /
    • pp.635-643
    • /
    • 2011
  • The purpose of this study was to examine the effects of goal-setting on Eco-driving behaviors. An additional purpose was to examine whether setting goals on target behaviors has spread effects on non-target Eco-driving behaviors. Three office workers who drive regularly participated in this study. An AB multiple baseline design was adopted. After baseline (A), participants set goals on two or three target behaviors(e.g., over speeding, put the gears in neutral, extreme acceleration) (B). Results showed that goal-setting was effective in increasing the targeted Eco-driving behaviors. In Addition, most of the non-target Eco-driving behaviors(e.g., extreme break, extreme acceleration) increased.

  • PDF

The Effects of Goal-setting on Eco-driving Behaviors (목표 설정이 에코 드라이빙 행동에 미치는 효과)

  • Choi, Shin-Jeong;Lee, Kye-Hoon;Choi, In-Sub;Oah, She-Zeen
    • Journal of the Korean Society of Safety
    • /
    • v.26 no.6
    • /
    • pp.124-129
    • /
    • 2011
  • The purpose of this study was to examine the effects of goal-setting on Eco-driving behaviors. An additional purpose was to examine whether setting goals on target behaviors had spread effects on non-target eco-driving behaviors. Three office workers who drive regularly participated in this study. An AB multiple baseline design was adopted. After baseline (A), participants set goals on two or three target behaviors(e.g., over speeding, put the gears in neutral, extreme acceleration) (B). Results showed that goal-setting was effective in increasing the targeted eco-driving behaviors. In addition, most of the non-target eco-driving behaviors(e.g., extreme break, extreme acceleration) increased.

A Study on the Analysis of Safe Driving Behavior on Curve Section by Curve Radius and Road Surface Condition (곡선반경과 노면상태에 따른 곡선구간 안전주행 행태분석)

  • Kim, Keun-Hyuk;Lim, Joon-Bum;Lee, Soo-Beom;Kim, Joo-Hee;Kim, Sun-Mi
    • Journal of the Korean Society of Safety
    • /
    • v.27 no.5
    • /
    • pp.211-218
    • /
    • 2012
  • Two experiment are planed to identify driver's safe driving behaviour by curve radius, road surface condition in curve section. At four-lane and two-lane road, conducted experiments are check on driver's feeling of safety that 30 subjects do not feel discomfort. And using the data from these experiments, this study compare physical speed (not slipping, fall our of the road) with safety driving speed(drivers felt a comfortable and safe speed) each curve radius and fiver road surface condition(drying, wet, rain, snow and ice). As a result, safe driving behaviour factors that are derived to curve radius of 100m units, five road surface conditions enable to represent quantitative analysis of driver's discomfort. This study will develop road design method and evaluation reflected ergonomic aspects.

A Study on Behavioral Factors for the Safely of Ambulance Driving (일부지역에서 구급차운전자의 구급차 안전운전 운행행태에 관한 연구)

  • Jo, Jeanman;Lee, Byung-Ju
    • The Korean Journal of Emergency Medical Services
    • /
    • v.1 no.1
    • /
    • pp.100-111
    • /
    • 1997
  • This is the first Korea study to evaluate the effects od the safety of ambulance driving and the occurrence of ambulance traffic accidents and to provide basic informaion for the description of various factors to reduce the ambulance traffic accidents. The major insturment of this study were Krean Self-Analysis Driver Opinionnaire. Questionnaire contains 8 items which measure driver's opinions or attitudes : driving courtesy, emotion, traffic law, speed, vehicle conditions, the use of drugs, high-risk behaviors, and human factors. To take the analysis of data, the total of 350 divers were investigated ambulance divers and others in Taejon City and others (6 City) from 1996. 1. July to 1996. 31. July. The data were analyzed by the descriptive statistics and the logistic regression - path analysis - with SPSS and SAS package program. The result are as follows : 1. There was desirable attitude group(16.2%) and undesirable attitude group(17.6%) on safety ambulance driving. 2. It have suggested that risk factors of ambulance traffic accidents much affected with emotion and speed control on safety ambulance driving < Y(Accdient) = -2.64 + 0.57 $X_1$ (Emotion Control) + 0.30 $X_2$(Seed control) + E > and motor traffic acident much affected with emotion control and high-risk behavior on safety driving < Y(Accident) = -1.11 + 0.33 $X_1$(Emotion Control) + 0.29 $X_2$(High-risk Behvior) + E > 4. The primary emphassis of ambulance drivers was make us realized that improthatnt factors on safety ambulance driving were 1)making way for emergent ambulance, 2)driver's career, 3)The ability of emergency medical technics, and the knowledge or under standing of ambulance way difficut(or easy) of accdess. 5. Almost 96.6% of respondents have agreed to necessity of emergency medical technics for ambulance drivers. 6. Almost 94.6% of respondents have consented to necessity of emergtency medical technicians for ambulance driving. 7. It have suggested that the proportion of traffic accident proportion by desitable attitude group(16.7%) was much less than that of undesirable attitude group(30.8%) on safety ambulance driving(P < 0.05)/Ps) Accidents are unplanned, unforesen incidents which can lead to harmful or unfortunate outcomes, Collisons are not accidents, since the basic cause of the majority of collisons invovles high-risk human behavior. Although there are many factors which contribute to accident causation, four basic factors seem to predominate in most traffic related situations. These four factors include: the human factor, the vehicle factor, the environmental factors and destination factor(Peto G. et al. 1995).

  • PDF