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  • The Leading Innovator
    of Railway Technology

    To lead creative and lnnovative ideas exploring new values
    with public transportation

  • The Leading Innovator
    of Railway Technology

    To lead creative and lnnovative ideas exploring new values
    with public transportation

  • The Leading Innovator
    of Railway Technology

    To lead creative and lnnovative ideas exploring new values
    with public transportation

RESEARCH PROJECT

KRRI NEWS

KRRI Enhances Railway Infrastructure Management with Satellites and Big Data

- Kills more than 99.9% SARS-CoV-2 in 1 second -UIWANG, South Korea – OCTOBER 31 – The Korea Railroad Research Institute (President: Dr. Seok-Youn Han) has developed Railway Satellite Tracking (RST) technology that utilizes Synthetic Aperture Radar (SAR) satellites to track and analyze minutes in railway infrastructure.RST technology detects changes in the target objects on the ground using radar images repeatedly captured by satellites orbiting hundreds of kilometers above the earth and big data analysis technology.KRRI has confirmed through RST technology that it is possible to achieve millimeter-level (mm) precision in detecting minute changes in railway tracks and bridges.※ Related Research Project- Project Title: Development of Railway Infrastructure Monitoring System Based on InSAR Satellite Information (PK2303B2)- Research Period and Budget: January 2021 to December 2023 / 1.23 billion KRW- Principal Researcher: Il-Wha Lee, Lead Researcher at KRRI's Advanced Infrastructure Convergence Research LaboratoryKRRI has verified changes ranging from 2 to 30 mm in railway tracks and bridges over the course of two years using RST technology. As a result, a level of precision equal to that of measurements taken manually on-site was achieved.With the ability to secure high-precision information on changes in railway structures, ground activity, and hazardous areas, efficient safety management has become feasible.There are plans to provide a response model that continually tracks these minute changes to identify and predict risks to railway infrastructure, such as tracks and bridges, and to deliver this information.Recently, technology for applying information from satellites to a diverse range of fields has been developed. Due to the advantages of managing large areas with a single satellite image and the potential for automated capture and analysis, such systems are being introduced in the field of maintaining Social Overhead Capital (SOC) infrastructure.While the current satellite utilization technology targeting SOC infrastructure is in its initial stages, it is expected to improve rapidly as technology development accelerates.Management of railway infrastructure is expected to become safer and more efficient by extending application of the new technology to include all objects observable by satellite, including bridges and tracks.Lead Researcher Il-Wha Lee of KRRI stated, "Satellite technology requires a lot of time and effort in terms of data acquisition and analysis, which presents a high barrier to entry at first, but will become an essential future technology for ensuring the safety of railway infrastructure as it provides more accurate and faster results t existing measurement technologies. We plan to develop an automated analysis platform applicable to all transportation infrastructure."President Seok-Youn Han of KRRI added, "We will lead the research and development to transform railway satellite tracking technology into a signature K-transportation technology widely applicable in the construction and maintenance of all transportation facilities, including ensuring the safety of railway facilities."※ Attachments: 1. Concept diagram of railway infrastructure managed by artificial satellites2. Radar satellite photos utilized in RST technologyPress ContactsYongmook KANGKorea Railroad Research Instituteymkang@krri.re.kr+82 31 460 5184

Pay Public Transit Fares Merely by Passing Through

- KRRI Develops Smart Gate-Free System -BUSAN, South Korea – SEPTEMBER 30 – The Korea Railroad Research Institute (President: Dr. Seok-Youn Han) has successfully field-tested the 'Smart Gate-Free System' technology at Jangsan Station on Busan Transportation Corporation's (HUmetro) Line 2.The Smart Gate-Free System is a system that automatically processes public transit fares when a passenger carrying a smart device passes a certain spot.With the elimination of gates and the ability to pay fares without physical contact such as boarding and disembarking tags, the use of public transit becomes significantly faster and more convenient.The Smart Gate-Free System developed by KRRI uses high-precision real-time passenger location sensing technology, where smart blocks installed on the floor where passengers pass and the passenger's mobile app communicate to process the appropriate fare.Even in crowded situations like rush hour, the platform, transit paths, and gates can accurately recognize the positions of large crowds of passengers in real time using IoT technology and process fares accordingly.※ Related Research Project- Project Name: IoT Smart Block Technology Development for Smart Gate-Free System (PK2301C2)(Research Period: January 2021 to December 2023 / Research Lead: Kyung-hee Kim, Senior Researcher at KRRI)Following tests at KRRI’s Smart Gate-Free laboratory in Uiwang and the Busan Transportation Corporation testing laboratory with gates, KRRI conducted a field test of the Smart Gate-Free System at Jangsan Station on Line 2 of the Busan Transportation Corporation on October 18th.Although the system does not require gates, a test was also conducted that mixed passengers who tagged transportation cards at the installed gates with those using the gateless, app-based system.The test results confirmed the compatibility of the current transportation card system with the gateless system. Additionally, the method for verifying fare processing success and identifying fare evaders when multiple passengers pass through the gate-free zone all at once was validated.Urban railways typically process fares by tagging transportation cards or similar methods at gates.Domestic railway operators are showing significant interest in developing gateless system technologies that process payments using mobile apps without tagging at gates.The new technology incorporated into the gate-free system is expected to reduce congestion within stations, resolve fare settlement disputes between railway operators, and increase the efficiency of railway station operations.Kyung-hee Kim, Senior Researcher at KRRI, stated, "The gate-free system is an essential technology for ensuring safe passage for passengers within railway stations, rational fare settlement among railway system operators, and increased efficiency of station design," and added, "We plan to continue our research and development efforts to aid reliable system operation, covering fare evasion management technology and standardization of payment systems."President Seok-Youn Han of KRRI highlighted, "As a leader in public transportation technology, Korea ranks first in the world in smartphone penetration and app installation," and expressed his commitment to "strive for the development of premium K-rail technology that enhances convenience and upgrades the public transit experience of the public."※Attachments: Scenes from the Smart Gate-Free System field test Press ContactsYongmook KANGKorea Railroad Research Instituteymkang@krri.re.kr+82 31 460 5184

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