• Title/Summary/Keyword: 스마트하이웨이

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스마트하이웨이 통신 기술

  • Lee, Sang-U;O, Hyeon-Seo
    • Information and Communications Magazine
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    • v.27 no.11
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    • pp.28-35
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    • 2010
  • 스마트하이웨이는 첨단 도로기술, IT 기술 및 차세대 자동차 기술이 상호 융복합된 무정체, 무사고의 지능형 고속도로이다. 본고에서는 스마트하이웨이 개요에 대해 살펴보고 특히 고속으로 이동하는 차량에 안전 및 인포테인먼트 서비스를 제공하기 위한 스마트하이웨이 통신 시스템 및 통신 기술에 대해 알아본다.

도로 진화의 시작 - 스마트하이웨이

  • Im, Gi-Taek
    • Information and Communications Magazine
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    • v.30 no.11
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    • pp.8-14
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    • 2013
  • 스마트하이웨이는 기존의 도로기술에 차량간 통신 등 첨단 ITS 통신 및 지능형 차량 제어기술을 융 복합하여 교통정체 및 사고를 미연에 방지하여 인적, 물적 손실을 최소화하는 첨단 지능형 고속도로이다. 본고에서는 교통사고 발생률, 사망률 등 교통 안전도 부문에서 OECD 가입국 중 최하위권에 머물고 있는 상황을 개선하기 위하여 지난 2007년 10월부터 약 7년간 수행하고 있는 스마트 하이웨이사업에 대해 살펴보고, 이 사업을 기반으로 향후 국내에서 예정되어 있는 시범사업 및 상용화 계획에 대해 알아본다.

Wireless Access Technologies for Smart Highway: Requirements and Preliminary Results (스마트하이웨이 무선전송기술: 요구사항 및 기본시험결과)

  • Cho, Woong;Oh, Hyun-Seo;Park, Byoung-Joo
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.11 no.2
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    • pp.237-244
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    • 2011
  • Vehicular communications extend their application areas by combining communication technologies with roads/vehicles, and one of major applications is Smart Highway project. Smart Highway is a new advanced highway system which enhances the current highway system in Korea by improving reliability, safety and convenience. In this paper, we introduce wireless access technologies for vehicular communications especially focusing on Smart Highway. We first introduce the overall communication system architecture and the basic service and communication requirements for Smart Highway. Then, we discuss wireless access technologies including L2-level hand-over scheme. In addition, the results of experimental measurements of Wireless Access in Vehicular Environments (WAVE) system are introduced.

Impact Conditions of Performance Evaluation, and Development of High-Performance Roadside Barrier for Longitudinal Barriers in Smart Highway (스마트하이웨이 종방향 베리어 성능평가 충돌조건과 고성능 노측용 베리어 개발)

  • Kim, Dong-Seong;Kim, Kee-Dong;Ko, Man-Gi;Jang, Dae-Young
    • Journal of Korean Society of Transportation
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    • v.29 no.2
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    • pp.59-67
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    • 2011
  • To minimize the degree of damage in the SMART highway's punctuality and safety occurred from the car-barrier collisions, the impact conditions for longitudinal barriers in SMART highway was determined to be significantly larger than the existing maximum impact conditions. Results from computer simulation runs show that the existing domestic highest-performance roadside barrier did not satisfy the suggested impact conditions. The newly developed N-class barrier designed with computer simulation model and verified by full-scale crash tests has satisfied the SMART highway impact conditions in terms of occupant safety indexes and structural adequacy.

Impact Condition of Safety Performance Evaluation for Longitudinal Barriers of SMART Highway (스마트하이웨이 종방향 방호울타리안전성능 평가를 위한 충돌조건)

  • Kim, Dong-Seong;Kim, Kee-Dong;Ko, Man-Gi;Kim, Kwang-Ju
    • Journal of the Korean Society of Hazard Mitigation
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    • v.9 no.3
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    • pp.49-57
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    • 2009
  • To minimze the degree of damage for the SMART highway's punctuality and safety after car-barrier collisions, the impact condition for longitudinal barriers of SMART highway was determined to be quite larger than the existing maximum impact condition. The impact condition consists of impact vehicles, impact velocities, and impact angles. To consider the occupant safety of passenger cars as much as possible, a small car with high risk during impact was selected as the impact vehicle for the evaluation of occupant risk. The impact velocity was determined to be 20% larger than the existing maximum impact velocity in order to include accident impact velocities as much as possible. The impact angle was determined to include most of expected accident impact angles. Computer simulations using various impact conditions were conducted for the existing domestic highest-performance medium and roadside barrier. How the suggested impact condition has an effect on the occupant safety was investigated. The existing domestic highest-performance medium and roadside barriers could not satisfy the suggested impact condition. New high-performance longitudinal barriers are required to minimize the degree of damage for the SMART highway's punctuality and safety after car-barrier collisions.

Experimental Analysis of V2X Communication Performance based on WAVE at the SMART-Highway Test-bed (스마트하이웨이 테스트베드에서의 WAVE 기반 V2X 통신 성능에 대한 실험적 분석)

  • Jung, Han-Gyun;Lim, Ki-Taeg;Shin, Dae-Kyo;Yoon, Sang-Hun;Jin, Seong-Keun;Jang, Soo-Hyun;Shin, Joon-Soo
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.15 no.4
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    • pp.115-128
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    • 2016
  • Many research activities to reduce accidents on the road and to improve traffic efficiency have been performed and almost research projects are developing technologies and services based on C-ITS technology nowadays. The main concept of C-ITS is improving road safety and traffic efficiency by sharing and reproducing information between various elements. To accomplish this goal, V2X communication technology has been adopted. In Korea, we have studied V2X communication technology in support of SMART-Highway research project and are managing test-bed to verify the developed technology recently. In this paper, we introduce SMART-Highway test-bed and show the procedure and result of V2X communication performance analysis on the test-bed.

A Dynamic OD Construction Methodology using Vehicle Trajectory in Ideal C&R Communication Environment (이상적 C&R 환경에서의 궤적자료를 이용한 동적 OD 구축에 관한 연구)

  • Lee, Jungwoo;Choi, Keechoo;Park, Sangwook;Son, Bumsoo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.31 no.3D
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    • pp.355-361
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    • 2011
  • In order to properly evaluate ITS services exposed in SMART Highway project, a confident dynamic origin-destination (OD) is inevitably needed. This paper used WAVE communication information as a part of call and response (C&R) communication which constitutes core part of the technology for constructing OD. This information includes node information and vehicle information (e.g., latitude and longitude) as well as trajectory data and sample path volume date calculated using node information and vehicle information. A procedure developed to construct a dynamic OD and to validate OD is consist of 1) making toy network and one-hour 00 (random distribution), 2) collecting link information and vehicle information, 3) constructing five-minute OD, and 4) validating estimated OD result using traffic volume and travel time simultaneously. The constructed OD is about 84.79% correct within less than 20% error range for 15min traffic volume, and about 85.42%, within less than 20% error rate of 15 min travel time. Some limitations and future research agenda have also been discussed.