Perfection of Technical Characteristics of the Railway Transport System Europe-Caucasus-Asia (TRACECA)

Tumanishvili, George; Natriashvili, Tamaz; Nadiradze, Tengiz

doi:10.1007/978-3-319-78295-9_8

Cited by 2 publications

(5 citation statements)

References 29 publications

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“…There are permanent representatives of TRACECA on the territories of Uzbekistan, Turkmenistan and Kazakhstan, which organize active work to promote this project (Kaw, 2019). We understand the interest in the project since, in the future, this corridor can form a significant transport flow with a large cash turnover, which will bring transit countries a significant amount of revenue (Tumanishvili et al, 2018). However, the scale of the project, the large number of participants with ambiguous interests and the need for colossal investments are significant deterrent factors for its implementation.…”

Section: Projects Under the Auspices Of Western Countries: Traceca Co...mentioning

confidence: 99%

Implementation of projects of international transport corridors on the Eurasian continent as drivers of economic growth of the region

Khalova,

Illeritskiy,

Rakhimov

et al. 2024

J. Infras. Policy. Dev.

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This study critically examines the implications of international transport corridor projects for Central Asian countries, focusing on the Western-backed Transport Corridor Europe-Caucasus-Asia (TRACECA), the Chinese initiative “One Belt—One Road”, and the International North-South Transport Corridor (INSTC) supported by the Russian Federation, India, and Iran. The analysis underscores the risks associated with Western projects, highlighting a need for a more explicit commitment to substantial infrastructure investments and persistent contradictions among key investors and beneficiaries. While the Chinese initiative presents significant benefits such as transit participation, infrastructure development, and economic investments, it also carries risks, notably an increased debt burden and potential monopolization by Chinese corporations. The study emphasizes that Central Asian countries, though indirect beneficiaries of INSTC, may not be directly involved due to geographical constraints. Study findings advocate for Central Asian nations to balance foreign investments, promote economic integration, and safeguard political and economic sovereignty. The study underscores the region’s wealth of natural and human resources, emphasizing the potential for increased demand for goods and services with improved living standards, strategically positioning these countries in the evolving global economic landscape.

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Section: Projects Under the Auspices Of Western Countries: Traceca Co...mentioning

confidence: 99%

Implementation of projects of international transport corridors on the Eurasian continent as drivers of economic growth of the region

Khalova,

Illeritskiy,

Rakhimov

et al. 2024

J. Infras. Policy. Dev.

View full text Add to dashboard Cite

show abstract

“…The signs of the beginning of the third body are instability of the friction (coefficient) moment, vibrations, and noise, and at visual observation in the laboratory conditions, the signs of scuffing are noticeable. Its prediction is possible with the use of the tables and graphs considering the given friction modifier, working conditions and environment properties, as well as the criterion of destruction of the third body [26].…”

Section: Dependence Of the Friction Coefficient On The Degree Of Destmentioning

confidence: 99%

“…It should be noted that the forces acting on point A are interdependent and equalities (25) and (26) are only valid for limited values of forces L and V, since the rise of the friction force FI is limited by the friction coefficient fI. Therefore, at a certain ratio of forces L and V, the friction force FI can no longer balance the contact point A, which will slip down on the rail lateral surface, and it is considered on this ground that the wheel cannot roll up on the rail.…”

Section: Conditions Of Derailmentmentioning

confidence: 99%

“…Therefore, at a certain ratio of forces L and V, the friction force FI can no longer balance the contact point A, which will slip down on the rail lateral surface, and it is considered on this ground that the wheel cannot roll up on the rail. At that, equalities (25) and (26) become inequalities from where a criterion of impossibility of the wheel rolling up on the rail or derailment is obtained [24]:…”

Section: Conditions Of Derailmentmentioning

confidence: 99%

“…Determining N and V correspondingly from (25) and (26), substituting them into (29) and then putting obtained P into (28), from the latter we obtain the following criterion of impossibility of the derailment:…”

Section: Conditions Of Derailmentmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Tribological Parameters on the Railway Wheel Derailment

Tumanishvili¹,

Nadiradze²,

Tumanishvili³

2020

Transportation Systems Analysis and Assessment

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At present, Nadal's formula is used for prediction of derailment that contains a limited number of parameters. Besides, insufficient study of laws of variation of the noted parameters and ignorance of the influence of other parameters on the derailment complicate solution of the problem. The sliding distance and the relative sliding velocity are the most sensitive factors contributing to the destruction of the third body. Moreover, increased friction coefficient between the steering surfaces of the wheel and rail promotes climbing of a wheel on the rail and derailment. Dependences of the main parameters, influencing the destruction of the third body, the sliding distance and the relative sliding velocity on the rail track curvature, and difference of diameters of wheels of the wheelset and the non-roundness of one of the wheels of the wheelset are shown in the work. The methods for estimation of the third body destruction degree and consideration in Nadal's formula of the additional criterion of impossibility of the wheel rolling on the contact point of the wheel and rail steering surfaces, containing a value of this contact point advancing, which in turn depends on the angle of attack, are proposed.

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Perfection of Technical Characteristics of the Railway Transport System Europe-Caucasus-Asia (TRACECA)

Cited by 2 publications

References 29 publications

Implementation of projects of international transport corridors on the Eurasian continent as drivers of economic growth of the region

Implementation of projects of international transport corridors on the Eurasian continent as drivers of economic growth of the region

Influence of Tribological Parameters on the Railway Wheel Derailment

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