• Proceedings of the KSR Conference
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• 1999.05a
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• pp.367-374
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• 1999

The selection of geogrid types for the use of reinforced rail roadbed is important in the design of railways. Also, the problem of the construction damage on the geogrid during construction is raised by the field engineers. Therefore, laboratory model tests were peformed to investigate the efficiency of the bearing capacity and construction damage. As a result, it was found that the bearing capacity of the rigid geogrid reinforced railroad ballast shows 1.54 times higher than that of the flexible geogrid reinforced case. In addition, there were no noticeable damage during construction.

• International Journal of Railway
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• v.5 no.4
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• pp.135-138
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• 2012

The article suggests criteria of dividing transport systems into systems of limited and open access. Possibilities of implementing principles of the open access in conjunction with the adaptive control at the railway transport have been analyzed. The author makes a grounded conclusion that the development of transport systems based on the open access and adaptive control can play a positive role in overcoming the global instability of the economy and form prerequisites of its stable grows.

• Proceedings of the KSR Conference
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• 2009.05a
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• pp.342-348
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• 2009

Many rail operators have developed ticketing systems for the use of rail service and the increase of operation revenue by AIM, E-ticket and mobile tickets. Also they have operated rail pass for rail revenue by foreign tourists. Russian railways (RZD) has similar rail systems with CIS countries and sometimes same tickets. A few years ago, RZD introduced and operated E-ticketing system for the increase of passenger's convenience and operation revenue, and CIS countries have adopted and widely used this system. This study will introduce the revenue business by E-ticketing system of RZD, and forecast Russian railroad business in the future.

• Proceedings of the KIEE Conference
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• 1999.07a
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• pp.483-485
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• 1999

Recently, distributed control network system has been widely applied to on-board control system than conventional relay logic with control wire. This paper presents two configuration of driver's desk system using TCN(Train Communication Network). One is configured with TCN, the other is partial adoption of TCN.

• Proceedings of the KSR Conference
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• 2003.05a
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• pp.263-271
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• 2003

In this paper, we presents the results of the leading 2 European projects in the real-time train conflict dection and resolution field. One is MARCO(Multi-level Advanced Railways Conflicts Resolution and Operation Control) and the other is COMBINE(enhanced COntrol center for a Moving Block sigNaling systeEm) project. From the results of the survey, we derive the basic principles in order to use in the similar project of Korea Nation Railway.

• Proceedings of the KSR Conference
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• 2002.05a
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• pp.100-105
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• 2002

Now operating of many urban railway lines are currently in progress in tile Seoul, but the inadequate consideration of links between different lines could create inconvenience as the public transport. This paper is studied about the connection design of urban-railway service convinced for other metropolis railways forms and propose the base pilot plan of the railway network linking system in Seoul Metropolis.

• Proceedings of the KSR Conference
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• 2002.05a
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• pp.312-316
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• 2002

Tilting train is the best solution to provide faster passenger service on conventional railway lines without too costly modification of infrastructure. Kinematic envelope gauging is very important when applying tilting trains % conventional railways with limited clearance. Due to tilting motion, the kinematic envelope of tilting train is larger than that of non-tilting train. This study was done to estimate the maximum dimension of tilting train being suitable for Korean conventional lines. In this study the two worst cases of tilting train movement was assumed and related suspension displacements, geometrical overthrow of train on une, wear of wheel ＆ rail were combined to determine kinematic envelope.

• Proceedings of the KSR Conference
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• 2000.05a
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• pp.376-381
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• 2000

Because of the presure of costs some public transport companies are forced to think new system that is more simple and more economic forms of operation. Radio-based operation and automatic driverless operation for city railways are possible to low the costs. To construct the automated driverless operation system, it is necessary to configure the new signalling. This paper focuses on the automated driverless operation system suitable for the LRT and the standard of signalling function and the R＆D project in the world.

• Proceedings of the KSR Conference
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• 2000.05a
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• pp.143-150
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• 2000

Like conventional railways, improving running performance of vehicle in curve is more effective than improving maximum speed to reduce traveling time. But some vehicles have problems concerning running performance in cure because of insufficient study for our conventional railway characteristics. So, these problems brought about increasement of maintenance cost. This study was started to deliberate several plans to solve problems concerning running performance in curve. Some modifications of primary suspension and tests were carried out to improve curve negotiation. Here, we describe some results.

• Proceedings of the KSR Conference
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• 2002.10a
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• pp.516-521
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• 2002

This paper was reviewed technical items of catenary system for electrification of Gyeongbu(Dongdaegu∼Busan) and Honam(Daejeon∼Mokpo) conventional Railways. The lines have adopted new technical items in order to connect to Gyeongbu high speed railway. We can use the technology and experience of Gyeongbu and Honam lines to a new catenary system design up-graded for speed-up of conventional lines and new lines construction.