• Title/Summary/Keyword: Its

Search Result 145,602, Processing Time 0.096 seconds

A Study on Effective Analysis Method of ITS(A Case of SUWON) (ITS 사업의 효과분석 방법론에 관한 연구(수원시를 중심으로))

  • Lee, Choul-Ki;Oh, Young-Tae;Lee, Hwan-Pil
    • The Journal of The Korea Institute of Intelligent Transport Systems
    • /
    • v.6 no.2
    • /
    • pp.81-94
    • /
    • 2007
  • In order to solve the traffic problem which comes to be serious at day, the impotance of Intelligent Transport Systems(ITS) that accomplish information gathering, information processing, information offering with up-to-date scientific techniques is coming to be high. But many local self-government group want to solve the traffic problems with introduction of ITS, however, it is a actual condition where the systematic effective analysis is insufficient. This study establishes the methodology of effective analysis as introduction of ITS, which refers to the inside and outside of the country instance. And then, this research accomplishes direct and indirect effective analysis with the case study. As a result of SUWON ITS introduction effect analysis, the travel speed of TRC mode is increased 31%, and the delay of TRC mode is diminished 43.9% than before introducing case. Most of the citizen felt the improvement effect of ITS system operation, and the majority wanted the expansion of the ITS system in survey. The analysis of economic result that B/C ratio is 5.12. So, The the effect and economic propriety of the ITS enterprise appeared with the fact that it is sufficient.

  • PDF

Methodologies of Qualitative Survey and Analysis for ITS Projects (ITS 사업의 정성적 조사 및 분석 방법론 정립)

  • Choi, Yoon-Hyuk;Choi, Kee-Choo
    • The Journal of The Korea Institute of Intelligent Transport Systems
    • /
    • v.7 no.1
    • /
    • pp.115-126
    • /
    • 2008
  • Since the ITS project of Gwacheon city has been implemented in 1998, feasibility analysis for various ITS projects has been conducted in quantitative and qualitative aspects. However, ITS operation manual that describes the universal standards comprehensive methodology for survey and analysis for the qualitative effects of the ITS. Although it its difficult to measure the qualitative elements, the effectiveness and achievement of ITS project can be directly evaluated from the user survey. A comprehensive methodology proposed in this paper includes the design and implementation of the qualitative survey, the procedure of data analysis, the evaluation, and proposing the enhancements. The proposed methodology that take both quantitative and qualitative aspects into account, therefore, can lead the accurate and effective assessment of ITS projects.

  • PDF

Standardization Plans for Consolidated Implementation of ITS Technology (ITS 기술의 통합적 구축을 위한 표준화 방안 연구)

  • Park, Yong-Seo;Lee, Jae-Kyoung;Lee, Jin-Ho;Kang, Byeong-Gwon
    • Journal of Digital Convergence
    • /
    • v.11 no.7
    • /
    • pp.149-155
    • /
    • 2013
  • Recently, automobile traffic systems are evolving toward Intelligent Traffic Systems(ITS) with smart sensor technology and collaboration between traffic systems and external ones. On the contrary, Korean ITS services have little improvement comparing with other communication services. The main causes of this phenomenon are due to already allocation of ITS recommended frequency band to broadcasting services, and also dedication of DSRC frequency band over ISM band resulting in interferences. This paper provides the analysis of current Korean ITS technology status, and two suggestions to activate the ITS industry. First, need to fix the ITS standard combining WAVE and DSRC specifications soon. Second, ITS frequency allocation to complete its standard implementation in near time frame.

"국가 ITS 기본 계획"의 개요

  • 전경수
    • The Magazine of the IEIE
    • /
    • v.28 no.5
    • /
    • pp.27-33
    • /
    • 2001
  • 정부는 현재 직면한 교통문제 해결의 필요성을 인식한 후 1993년부터 대통령 직속 SOC 투자기획단에서 ITS 도입문제를 검토하기 시작하여 1997년 「국가 ITS 기본계획」을 수립히였다. 이를 토대로 정부 및 산·학·연등이 능동적으로 참여하여 ITS 사업이 추진되어 왔다. 그러나 1998년 외환위기에 직면하면서 ITS 사업에 대한 투자 감소등의 환경변화와 동시에 ITS 전문가들은 공급자 중심에서 최종 사용자 중심의 기본계획의 필요성을 제기하면서 ITS 기본계획 개정 필요성이 제기되어 더 현실적이고 융통성이 있는 기본계획을 수립하게 되었다. 이러한 배경을 기본으로 본 논문은 개정된 국가 ITS 기본계획의 내용 즉, 제공서비스, 단계별 구축계획, 단계별 예산 등을 살펴본다.

  • PDF

Phylogenetic Analysis of Dendropanax morbifera Using Nuclear Ribosomal DNA Internal Transcribed Spacer (ITS) Region Sequences (Internal transcribed spacer (ITS) region의 염기서열 분석에 의한 보길도산 황칠나무의 분자 계통학적 연구)

  • Shin, Yong Kook
    • Journal of Life Science
    • /
    • v.26 no.11
    • /
    • pp.1341-1344
    • /
    • 2016
  • Dendropanax morbifera is an endemic tree species of Korea, it is restricted to the southern parts of Korea. The internal transcribed spacer (ITS) region of nuclear ribosomal DNA (nrDNA) for Dendropanax morbifera grown at Bogil-do, Korea was determined. We investigated the sequence-based phylogenetic relationships of plants related and clarified its taxonomical position. The determined sequences consisted of 689 residues. ITS1 was 222 bp long while ITS2 was 233 bp long. The 5.8S rDNA was 160 bp long. The ITS region sequences of the Dendropanax species included in this study were obtained from GenBank. Oreopanax polycephalus was used as the outgroup. A pairwise alignment was calculated using the Clustal X program. A phylogenetic tree was constructed by the neighbor-joining method using the Tree view program. Sequence similarities among species including D. morbifera Bogil-do isolate showed the range 92.6 to 99.7% in sequence-based phylogenetic analysis using total 615 base pairs of ITS1, 5.8S rDNA and ITS2. D. morbifera Bogil-do isolate exhibited the highest degree of relatedness to D. chevalieri, sharing 99.7% ITS region similarity. D. morbifera Bogil-do isolate also showed to D. trifidus, sharing 99.4% ITS region similarity.

Results of Developing an ITS Device Performance Test-Bed and Criteria of Its Selection (ITS 장비 성능시험장 선정기준 및 구축결과)

  • Lee, Sang Hyup;Lee, Mi Young;Baik, Nam Cheol
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.26 no.5D
    • /
    • pp.703-708
    • /
    • 2006
  • In the United States and Japan ITS device performance test-beds have been widely developed to enhance the reliability of traffic information and to expedite the standardization of components for securing the compatibility of device. In this study the selection criteria for developing ITS device performance test-bed are investigated by analyzing the cases and studies of overseas. Based on the criteria, a test-bed is developed and test-run. The importance of developing ITS device performance test-bed was identified as the result of reviewing the test run of each selection.

Development of A Model for Estimating ITS Market Size in Korea (지능형교통체계(ITS)의 시장예측모형 개발에 관한 연구)

  • 배상훈
    • Journal of Korean Society of Transportation
    • /
    • v.19 no.5
    • /
    • pp.21-33
    • /
    • 2001
  • Intelligent Transport Systems (ITS) was first introduced in Korea early 1990's, and Korean government has put a lot of efforts for flourishing it in the entire nation. Regardless of these efforts, private participation is not active enough to accelerate ITS implementation in Korea. Expert group made every endeavor to analyze the current situation, and found out some phenomena. It may be summarized as two folds. Firstly, private sector has a lack of confidence on the future ITS market. Budget in the strategic plan is the only publication and guide that private sector can refer to, and it merely indicates deployment costs. Secondly, direction and procedure of R&D are not well defined. It implies that private sector takes too much risk when they invest for R&D. This research, therefore, focuses on the first issues. Concretely, the goal of the project was to establish and analyze the model for estimation the future ITS market side. Author reviewed both quantitative and qualitative models, and concluded that diffusion model in qualitative model was suitable for ITS market estimation. According to model calibration. it is estimated that 14 trillion Won was the market size in 2020 under normal condition. Impact of this result may seduce Information Technology(IT) related private companies into ITS market. Although this research couldn't cover various topics, it nay dedicate in boosting ITS in Korea. Also, it will be a good starting point for further study for the advancement of ITS.

  • PDF

Phylogeny of Korean Rhus spp. Based on ITS and rbcL Sequences (ITS 및 rbcL 염기서열에 근거한 한국 자생 옻나무속의 계통분류)

  • Lee, Won-Kyung;Kim, Myong-Jo;Heo, Kweon
    • Korean Journal of Medicinal Crop Science
    • /
    • v.12 no.1
    • /
    • pp.60-66
    • /
    • 2004
  • This study was carried out to confirm the phylogenetic relationships in Korean Rhus species. Sequences from internal transcribed spacers (ITS) of nuclear ribosomal DNA and rbcL gene of chloroplast DNA were determined. Cotinus coggygria was selected as outgroup because it is closest allied with Rhus in Anacardiaceae. Also, ingroup was limited as six Korean Rhus species. ITS 1 sequences in six species of Rhus and one species of Cotinus ranged from 246 to 253 bp and ITS 2 sequences from 234 to 244 bp. Concerning the G+C content of the studied taxa, ITS 1 sequences ranged from 58.0 to 68.13% and ITS 2 from 59.75 to 68.46%. On the other hand, rbcL sequences were same size in the all species examined by 1,428 bp. G+C contents of rbcL sequences were ranged from 43.56 to 43.77% which means there are nearly no different from interspecies each other. Phylogenetic tree strongly supports the colse relationships between R. succedanea and R. sylvestris. Rhus javanica and Cotinus coggygria were also closely allied with each other in ITS and rbcL trees. Therefore, R. javanica was regarded as most primitive species among the Korean Rhus species. ITS 1 region of nuclear ribosomal DNA was suggested as very useful taxonomical marker for genus Rhus.