• Title/Summary/Keyword: ITS: Intelligent Transport System

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An Implementation of DB Query Collecting and Analyzer Using Packet Interceptor (패킷 인터셉터를 이용한 DB 쿼리 수집 및 분석기 구현)

  • Lim, Jae-Deok;Lim, Sung-Han;Baek, Nam-Chul
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.7 no.4
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    • pp.97-106
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    • 2008

  • This proposed system is a part of internal control system that national highway need to support their ITS information audit. This paper explains the design and implementation of a packet interceptor and a DB query analyzer. The packet interceptor sniffs users' query packets, and then the DB query analyzer parses the SQL queries and stores the users' DB access information such as SQL queries, access data and changing data. The information may be used as the evidences on internal control of users and users' accesses.

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A Study on the Effectiveness of Intelligent Transport Systems on National Highways (국도상의 지능형교통시스템의 효과성 분석에 관한 연구)

  • Lim, Sung-Han;Kim, Hyun-Suk;Heo, Tae-Young
    • Journal of Korea Society of Industrial Information Systems
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    • v.14 no.4
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    • pp.205-212
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    • 2009

  • Intelligent Transport Systems(ITS) has been currently growing attention in industry as hightech traffic system and ITS infrastructure has been built not only on expressway but also on national highways. Although the effect of ITS installation on national highways is not easy to measure with quantitative methodology, it is necessary to develop the quantitative method to verify the effect accurate analysis of ITS effect. In this study, the analysis of cost efficiency of ITS project carried out by Iksan Regional Constriction Management Administration(IRCMA) was conducted. Analysis period and discount rate were assumed as 10 years and 5.5%, respectively. Several measures of the effect including reduction of travel time, CO2 discharged and fuel and the value of Variable Message Sign(VMS) information were proposed. Concludingly, ITS project implemented by IRCMA appeared to be cost effective, indicating 1.20 of B/C ratio, 12.4% of IRR and W1.48 billion of NPV.

  • https://doi.org/10.9723/jksiis.2009.14.4.205 인용 PDF