• Title/Summary/Keyword: Road safety facilities

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Seismic Performance Management of Aged Road Facilities Using Deterministic Method vs. Probabilistic Method (확률론적 및 결정론적 방법을 이용한 노후도로시설물 내진성능관리)

  • Kim, Dong Joo;Choi, Ji Hye;Lee, Do Hyung
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.40 no.5
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    • pp.455-463
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    • 2020
  • Road facilities with a service life of more than 30 years are expected to triple in the next ten years. The seismic performance of road facilities should be reviewed with consideration of the "Common Application of Seismic Design Standards" issued by Korea's Ministry of Public Administration and Security in 2017. These standards should be applied to all existing road facilities, including retrofitted or seismic-designed facilities, for evaluating seismic performance. In order to manage seismic performance for a large number of facilities, decision-support technology that can provide economic and reliable results is needed. However, the indices method currently used in Korea is a deterministic method, and the seismic performance of individual facilities is evaluated based on qualitative indices so that only retrofitting among road facilities is prioritized. In turn, with the indices method, it is difficult to support decisions other than the decision to prioritize retrofitting. Therefore, it is necessary to use the seismic risk assessment method to overcome such shortcomings and provide useful information such as direct loss, indirect socio-economic loss, and benefit of the investment.

A Study on the Environmental Planning Guidelines for Crime Safety at Elementary School settings (초등학교 교육환경의 범죄안전 환경계획방안에 관한 연구)

  • Byun, Gi-Dong;Ha, Mi-Kyoung
    • Korean Institute of Interior Design Journal
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    • v.22 no.2
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    • pp.211-219
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    • 2013
  • The purpose of this study is to propose the environmental planning guidelines of elementary school settings for a crime safety. The research methodologies To achieve the goal, the literature review analysis and the survey were used as main research methodologies. The survey is organized as follows. First, elementary education facilities were divided into 20 spaces based on the major space. Second, after analyzing the domestic and foreign CPTED Guidelines, elements of environmental planning were classified to fit in the space. Based on this, the expert survey was conducted. The results of this study are as follows; First, it is necessary to consider specific places such as 'toilets', 'parking lot', 'in-between space', 'main access road', 'sub-access road' and 'harmful facilities around school' for safer school environment. Second, it is significant to plan 'equipment facilities' and 'outdoor space in the school setting' with priority for elementary education environment. Third, environmental planning elements for safer elementary schools can be classified into 9 factors(types) including 'natural surveillance planning', 'territoriality reinforcement planning', 'mechanical surveillance planning', 'access control planning' and 'neighborhood reinforcement planning'. Forth, regarding 'indoor space', crime-free elementary school environment can be build through 'natural surveillance planning' and 'territoriality reinforcement planning'. Finally, regarding 'outdoor space', the crime can be prevented through 'natural surveillance planning' and 'access control planning'.

A Study on the Roadmap Design for Electrical Safety Technology (전기안전기술 로드맵 설계 연구)

  • Shin, Heung-Sik;Lee, Jae-Chon;Lee, Bung-Gil
    • Journal of the Korea Safety Management & Science
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    • v.9 no.3
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    • pp.1-7
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    • 2007
  • A roadmap for Electrical Safety Technology has been designed based on the study that has been contributed by the specialists, professors and researchers in electral safety field. The roadmap is divided into five major fields including, for instance, the electrical fire accidents roadmap. The other four roadmaps are for electrical shock accidents, electrical facilities accidents, electrical safety policies and electrical safety culture-education, respectively. Each roadmap has a purpose, a scope, and a technical characteristic. Following the roadmaps can result in significant reduction of electrical fire accidents, electrical shock accident victims and so forth. The result can also be utilized in guiding the planning and development of the future electrical safety technology.

Valuation of Road Guard System to Reduce Road-Kills (로드킬 저감을 위한 로드가드시스템의 가치 평가에 관한 연구)

  • Lee, Byung-Joo;Kim, Tae-Sik;Chung, Bong-Jo;NamGung, Moon
    • International Journal of Highway Engineering
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    • v.13 no.1
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    • pp.107-118
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    • 2011
  • This study carries out to evaluate the value of introducing the road guard system that merges the function of a fence that induces wild animals and a grass inhibitor to an existing guard rail that acts as road safety facilities. For this purpose, we surveyed that road user's willingness-to-pay and recognition characteristics for road safety facilities using contingent valuation Method. By establishing a willingness-to-pay assumption model, the average willingness-to-pay was 5,018 won, which was higher than the average proposed amount of 3,883 won and shows that the road guard system is an appropriate alternative facility to increase road safety and reduce road kills. Therefore, it would be prudent to review the introduction of the road guard system to newly constructed roads or current roads in operation as a way of reducing road kills. In the future, the road guard system must be tested in areas that are highly susceptible to road kills after consulting with the relevant highway managing authorities to conduct a comparison study on the before and after installation effect of the road guard system to investigate its operation and the current status of road kills to clearly identify its effectiveness.

Understanding Facility Management on Tunnel through Text Mining of Precision Safety Diagnosis Data (터널시설물 점검진단 데이터의 텍스트마이닝 분석을 통한 유형별·지역별 중점 유지관리요소의 이해)

  • Seo, Jeong-eun;Oh, Jintak
    • Journal of Korean Association for Spatial Structures
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    • v.21 no.3
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    • pp.85-92
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    • 2021
  • The purpose of this paper is to understand the key factors for efficient maintenance of rapidly aging facilities. Therefore, the safety inspection/diagnosis reports accumulated in the unstructured data were collected and preprocessed. Then, the analysis was performed using a text mining analysis method. The derived vulnerabilities of tunnel facilities can be used as elements of inspections that take into account the characteristics of individual facilities during regular inspections and daily inspections in the short term. In addition, if detailed specification information and other inspection results(safety, durability, and ease of use) are used for analysis, it provides a stepping stone for supporting preemptive maintenance decision-making in the long term.

Analysis of the Implication of Accessibility to Community Facilities for Land Price in Rural Areas using a Hedonic Land Price Model (헤도닉모형을 이용한 농촌지역 생활편익시설의 접근성이 지가에 미치는 영향 분석)

  • Kim, Solhee;Kim, Taegon;Suh, Kyo
    • Journal of Korean Society of Rural Planning
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    • v.22 no.1
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    • pp.93-100
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    • 2016
  • Land price can be affected by convenience or psychological repulsion like PIMFY (Please In My Front Yard) or NIMBY (Not In My Back Yard) for various facilities. Services related to public establishment, welfare, medical attention, and amenities in rural areas are comparatively poorer than those in urban areas. The purpose of this study is to estimate the implications of the accessibility to community facilities in rural areas for land prices using a hedonic price model. The accessibility to facilities is estimated by real road distances and the land prices are applied for four types of land usages: field, rice paddy, building lots, and village halls. Community facilities are classified from public and community services view: education, safety, culture, transport, environment, health care, and finance. The results show that the accessibility to health care and transport can positively affect land prices and the accessibility to environment (waste facilities and junkyard) and unpleasant services (funeral hall and charnel house) can negatively affect land prices. Especially, the accessibility to hospital is the most positive influential factor for all types of land usages.

Development of ICT-based road safety integrated facilities for pedestrian crossing (ICT기반 횡단보도용 교통안전 통합시설물 개발)

  • Cho, Choong-Yuen;Yim, Hong-Kyu;Lee, Min-Jae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.12
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    • pp.93-99
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    • 2017
  • The rate of traffic accidents that occurred in Korea last year is 10 out of every 100,000 people, ranking it 6th among the 35 OECD member countries. The accident rate of children with disabilities and elderly people is also high. The purpose of this study is to introduce traffic safety facilities which have been developed for the reduction of traffic accidents in non-urban areas in Korea through an analysis of the related literature, the accident factors using traffic accident analysis system data and traffic accident characteristics. Traffic safety integrated facilities for ICT-based pedestrian crossings are subject to cross-sectional coverage of child protection zones. The smart safety fence prevents vehicles from parking illegally and informs pedestrians that there is an access vehicle on the pedestrian crossing. The smart bump is designed to warn drivers who are not aware of the pedestrians. In order to standardize the appropriate form and size of the traffic safety facilities for pedestrian crossings, we constructed a standard model for each type, considering the road function, press classification, power, lane number, geometric form, etc. As a result, the rate of traffic accidents involving vulnerable people was reduced. In addition, it is anticipated that the maintenance costs will be reduced by the use of a solar power supply and their compatibility with the existing installed safety fences.

Study on Improvement Plans for Installation and Operation of Traffic Safety Facilities according to Differences in Perception Methods and Range of Autonomous Vehicles and Human Vehicles (자율주행차량과 일반차량의 인지 방식과 범위의 차이에 따른 교통안전시설 설치 및 운영 개선방안 연구)

  • Hyeokjun Jang;Eunjeong Ko;Eum Han;Kitae Jang
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.22 no.1
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    • pp.311-326
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    • 2023
  • This paper proposes a plan to improve the installation and operation of traffic safety facilities using a microscopic simulation by confirming the difference in the perception method and range of autonomous vehicles and human vehicles. In this study, the existing 『Traffic Safety Sign Installation·Management Guidelines』 was reviewed, and safety signs among traffic safety facilities were classified according to changes in vehicle behavior. Subsequently, for the classified facilities, the installation location of the traffic sign was changed through simulation experiments, and the optimal location was inferred to suggest an improvement plan. This study confirmed how traffic safety facilities installed based on the visibility of human drivers affect road efficiency and safety in mixed traffic flow with autonomous vehicles and human-controlled vehicles. The optimal location derived through this study is meaningful because it can be used as the basis for revising the guidelines on the installation and management of traffic safety facilities.

A Study on the Field Management System for Traffic Safety Facilities in IoT Infrastructure (IoT 기반 교통안전시설 현장관리 체계 연구)

  • WON, Sang-Yeon;LEE, Jun-Hyuk;JEON, Young-Jae;KIM, Jin-Tae
    • Journal of the Korean Association of Geographic Information Studies
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    • v.25 no.1
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    • pp.1-15
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    • 2022
  • In order to trust and use autonomous vehicles, safe driving on the road must be guaranteed. For this, the first infrastructure to be equipped with autonomous driving is traffic safety facility. On the other hand, autonomous vehicles(Level 3) and general vehicles are driving on the road, it is necessary to additionally manage existing general traffic safety facilities. In this study, a field management system for traffic safety facilities based on autonomous driving infrastructure was studied, and a pilot field management system was implemented in the demonstration area(Pangyo). The pilot system consists of a GNSS(Global Navigation Satellite System) receiver, a field management equipment, and a field management app. As a result of field demonstration,, it was confirmed that traffic safety facility information was easily transmitted and received even in downtown areas and that could be efficiently operated and managed. It is expected that the results of this study will be used as reference materials for the spread of autonomous driving infrastructure to local governments and infrastructure construction in the future.

Effectiveness of Positive Guidance for Speed Reduction at Signalized Intersection by Using Driving Simulator (도로주행시뮬레이터를 활용한 신호교차로 속도저감에 대한 Positive Guidance 효과 연구)

  • Noh, Kwan-sub;Lee, Jong-hak;Kim, Jong-min
    • International Journal of Highway Engineering
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    • v.13 no.1
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    • pp.59-67
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    • 2011
  • It can prevent traffic accidents in a way as taking precautionary measures for road safety at signalized intersection in advance. Particularly, traffic accidents can be reduced at relatively low cost without redesigning alignments. That is 'Positive Guidance method' which can help prevent traffic accidents through improvement of road facilities at signalized intersection. In this study, potentially higher hazardous signalized intersection due to speeding was selected through site investigation. Field analysis at designated section was conducted and devised a plan for improvements of road facilities. Subjects drove in driving simulator in 3-D virtual reality of designated intersection. Based on data from simulator, statistical analysis(t-verification) was conducted for 'Before and After effectiveness' of speed reduction. As a result, it indicates that speed reduction was effective after improvements at each spot in driving simulator. In the future, hazardous signalized intersections which can be applied for PG method will be effective for road safety based on this research.