The method of the evaluation of the efficiency of the processes carried out at traffic maintenance subsystem posts

Klaudiusz Migawa

doi:10.2478/v10174-012-0031-3

Authors

Klaudiusz Migawa University of Technology and Life Sciences, Bydgoszcz, Poland Author

DOI:

https://doi.org/10.2478/v10174-012-0031-3

Keywords:

means of transport, traffic maintenance subsystem, evaluation of efficiency

Abstract

In the systems of the exploitation of means of transport in order to assure correct carrying out of the assigned transport tasks, it is necessary to maintain the required number of vehicles in the state of task availability. It is obtained as a result of carrying out of service and repair processes at the traffic maintenance subsystem posts. From the point of view of the effectiveness of the operation of the systems of the exploitation of means of transport, the damaged technological objects should be serviced in the shortest possible time. In the case of the system of the exploitation of means of transport the task of the traffic maintenance subsystem is the servicing of the required number of damaged means of transport over the assigned time interval defined by the transport task timetable. One of the methods of the evaluation of the degree of carrying out of the processes at the traffic maintenance subsystem posts is defining the efficiency of the posts of the subsystem. This paper presents the method of defining the efficiency of traffic maintenance subsystem in the system of the exploitation of means of transport measured by the probability value of servicing of the required number of technological objects over the assigned time interval. The resulting characteristics were presented on a general basis as well as in the form of exponential distribution and Erlang distribution. Moreover, for the utilization data obtained in tests carried out in an actual means of transport system the values of the analyzed characteristics were defined. The evaluation of the efficiency of the traffic maintenance subsystem posts may serve as the basis of decision making as to the change of the number and type of the used service and repair posts in the tested system as well as modification of the carried out exploitation strategy. The suggested method may be used for individual post, a group of posts of a given type as well as for a subsystem of traffic maintenance analyzed as a whole.

References

Abezgauz G.G., Tron A.P., Kopenkin J.N., Korowina I.A.: Rachunek probabilistyczny - poradnik. WMON, Warszawa, 1973.

Buslenko N.P., Kałasznikow W.W., Kowalenko I.N.: Teoria systemów złożonych. PWN, Warszawa, 1979.

Cox D.R., Miller H.D.: The theory of stochastic processes. Chapman and Hall, London, 1965.

Downarowicz O.: System eksploatacji. Zarządzanie zasobami techniki. Instytut Technologii Eksploatacji, Radom, 1997.

Gołąbek A.: Metoda określania struktury systemu obsługi pojazdu samochodowego. Zagadnienia Eksploatacji Maszyn, Zeszyt nr 3-4 (59-60), 1984.

Houlden P.T.: Z praktyki badan operacyjnych. PWE, Warszawa, 1964.

Jaźwiński J., Grabski F.: Niektóre problemy modelowania systemów transportowych. Instytut Technologii Eksploatacji, Warszawa-Radom, 2003.

Kopociński B.: Zarys teorii odnowy i niezawodności. PWN, Warszawa, 1973.

Kosten L.: Stochastic theory of service systems. Pergamon Press, London, 1973.

Koźniewska J., Włodarczyk M.: Modele odnowy, niezawodności i masowej obsługi. PWN, Warszawa, 1978.

Kukuła K.: Badania operacyjne w przykładach i zadaniach. PWN, Warszawa, 1998.

Okulewicz J., Smalko Z.: Wyznaczanie technicznie uzasadnionej liczby stanowisk obsługowo-naprawczych. Instytut Transportu Politechniki Warszawskiej, Zeszyt 28, 1988.

Oziemski S.: Efektywność eksploatacji maszyn. Podstawy techniczno-ekonomiczne. Instytut Technologii Eksploatacji, Radom, 1999.

Piasecki S.: Zagadnienia organizacji obsługi technicznej maszyn i środków transportowych. Lubelskie Towarzystwo Naukowe, Warszawa-Lublin, 1996.

Schassberger R.: Wartenschlangen. Springer-Verlag, Berlin, 1973.

Taha H.A.: Operations research. Macmillan Publishing Co., New York, 1982.

Wagner H.M.: Badania operacyjne. PWE, Warszawa, 1980.

Woropay M., Żurek J., Migawa K.: Model oceny i kształtowania gotowości operacyjnej podsystemu utrzymania ruchu w systemie transportowym. Instytut Technologii Eksploatacji, Radom, 2003.