PL
 |
EN
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 3

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
1
Content available Analysis of the running of long-distance trains on non-electrified lines in Poland
Kamiński Wojciech
Transport Problems
|
2023
|
T. 18, z. 1
19--32
EN
In recent years, the number of long-distance trains running on non-electrified lines has been increasing in Poland. Unfortunately, trains running on non-electrified lines, unlike those running on the hook of electric locomotives, are very often canceled, especially in the winter. In this research, the analysis of which lines had the most frequent cancellations of trains in 2021 and the reasons for these cancellations were analyzed. The results show that the most common cause of train cancellations was the lack of an efficient locomotive at the starting station. Most often, accessibility problems concern Czech series 754 diesel locomotives. The numbers of canceled trains in February 2021 and 2022 were also compared. The comparison showed that although the situation is far from ideal, it has improved significantly.
2
Content available Comparison of selected railway lines in Poland using the analytical hierarchy process method
Kamiński Wojciech
Zeszyty Naukowe. Transport / Politechnika Śląska
|
2020
|
z. 108
73--84
EN
The volume of passenger and freight transport on a given railway line depends on many socio-economic factors. Therefore, before starting an investment on a railway line, various analyses are carried out regarding the choice of the line and the scope of works. This article presents the calculation of weights determining the impact of specific socio-economic factors on the volume of rail passenger and freight transport using the Analytical Hierarchy Process (AHP) method. Thereafter, a comparison was made of 12 railway lines located in various regions of Poland in terms of their use in both passenger and freight transport. Half of the analysed railway lines are main lines, while the other part are local lines. The comparison made it possible to arrange the selected lines regardless of their category.
3
Content available Determination of the influence of infrastructural and economic factors on the volume of freight transport on railway lines in Poland
Kamiński Wojciech
Transport Problems
|
2020
|
T. 15, z. 4, cz. 2
167--178
EN
This article assesses the effect of factors, such as the number of sidings, the number of station holds, and the occurrence of transit traffic on the volume of freight transport on railway lines in Poland. The volume of freight transport on a railway lin as expressed by the operational work done by freight trains running on this line and the transported freight mass by them. Most often the effect of factors affecting on the volume of transport is assessed by a team of experts. In this analysis, calculations of partial correlation coefficients were performed. The calculations showed that there is a clear relationship between the volume of freight transport and the number of sidings on the line and the occurrence of transit traffic. Based on the obtained partial correlation coefficients, weights corresponding to the effects of individual factors on the volume of freight transport were calculated. The use of these weights for further analysis will avoid the subjective expert assessments that have been used in this type of analysis so far.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.