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ESTABLISHING MANEUVER WORK INDICATORS IN THE PICK-UP TRAINS FORMING PROCESS USING THE SIMULTANEOUS METHOD I.Belošević, M.Ivić, M.Marković, S.Vesković,

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Presentation on theme: "ESTABLISHING MANEUVER WORK INDICATORS IN THE PICK-UP TRAINS FORMING PROCESS USING THE SIMULTANEOUS METHOD I.Belošević, M.Ivić, M.Marković, S.Vesković,"— Presentation transcript:

1 ESTABLISHING MANEUVER WORK INDICATORS IN THE PICK-UP TRAINS FORMING PROCESS USING THE SIMULTANEOUS METHOD I.Belošević, M.Ivić, M.Marković, S.Vesković, N.Pavlović, S.Milinković, M.Kosijer University of Belgrade, Serbia 19 th International Symposium EURO –ŽEL 2011 Recent challenges for European railways 8th – 9 th June Žilina,Slovak Republic

2 What are pick - up trains? Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD

3 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD What are pick - up trains? Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations TECHNICAL FREIGHT YARD

4 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD What are pick - up trains? Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations TECHNICAL FREIGHT YARD

5 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD What are pick - up trains? Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations TECHNICAL FREIGHT YARD

6 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD What are pick - up trains? Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations TECHNICAL FREIGHT YARD

7 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD What are pick - up trains? Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations TECHNICAL FREIGHT YARD

8 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD What are pick - up trains? Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations TECHNICAL FREIGHT YARD

9 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD What are pick - up trains? TECHNICAL FREIGHT YARD Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations

10 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD What are pick - up trains? TECHNICAL FREIGHT YARD Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations

11 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS TRAIN INTERMEDIATE STATION B C D TECHNICAL FREIGHT YARD What are pick - up trains? Serve on line sections between two technical freight yards on the principle leave, pick-up or exchange wagons in intermediate stations Technical freight yards prepare compositions in order to minimaze shunting work in intermediate stations TECHNICAL FREIGHT YARD

12 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Principal of Simultaneous method Marshalling Yard RECEIVING YARD CLASSIFICATION YARD

13 RECEIVING YARD 64 7 241 653 1 487 893 7 162 5 8 532 Pushing onto the hump lok.

14 RECEIVING YARD 64 7 241 653 1 487 893 7 162 5 8 532 lok. Pushing onto the hump

15 RECEIVING YARD 64 7 241 653 1 487 893 7 16 2 5 8 532 lok. Pushing onto the hump

16 CLASSIFICATION YARD 7 162 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase - Gravity shunting

17 CLASSIFICATION YARD 3 7 1 62 Gravity shunting 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

18 CLASSIFICATION YARD 89 3 7 1 62 lok. Gravity shunting 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

19 CLASSIFICATION YARD 8 9 3 7 1 62 lok. Gravity shunting 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

20 CLASSIFICATION YARD 1 487 9 371 62 8 Gravity shunting 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

21 653 1 4 7 lok. 8 9 371 62 8 Gravity shunting CLASSIFICATION YARD 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

22 6 5 3 1 lok. 4 8 9 371 62 8 7 Gravity shunting CLASSIFICATION YARD 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

23 4 9 371 5 317 66288 Gravity shunting CLASSIFICATION YARD 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

24 CLASSIFICATION YARD 4 9 371 5 317 662887 241 Gravity shunting 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

25 CLASSIFICATION YARD 4 9 371 5 317 66288 7 64 2 4 1 lok. Gravity shunting 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

26 4 9 371 5 317 66288 lok. 6 4 7 2 4 1 Gravity shunting CLASSIFICATION YARD 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

27 9 371 5 317 662887162444 Gravity shunting CLASSIFICATION YARD 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

28 9 371 5 317 662887162444 5 8 532 Gravity shunting CLASSIFICATION YARD 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

29 9 371 5 317 662887162444 5 8 5 3 2 lok. Gravity shunting CLASSIFICATION YARD 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

30 9 371 5 317 662887162444 lok. 5 8 5 3 2 Gravity shunting CLASSIFICATION YARD 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

31 9 371 5 317 66271444 lok. 553262888 Gravity shunting CLASSIFICATION YARD 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

32 32 CLASSIFICATION YARD 9 371 5 317 66271444553262888 lok. 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

33 33 CLASSIFICATION YARD 9 371 5 317 66271444553262888 lok. 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

34 34 CLASSIFICATION YARD 9 371 5 317 662 1 4442628887 553 lok. Shunting onto the hump 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

35 35 CLASSIFICATION YARD 9 371 5 317 662444262888 71 553 lok. 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Shunting onto the hump - The First Phase -

36 36 CLASSIFICATION YARD 9 371 5 317 66244426288871 553 lok. Shunting onto the hump 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

37 37 CLASSIFICATION YARD 6624442628889 371 Shunting onto the hump 1 st, 3 rd, 5 th, 7 th, 9 th 2 nd, 6 th 4 th 8 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The First Phase -

38 38 CLASSIFICATION YARD 4448885 317 3 7 9 1 662262 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The Second Phase - Gravity shunting

39 39 CLASSIFICATION YARD 444888 1 53 1 1 7 553 lok. 7 37 9 662262 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Gravity shunting 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th - The Second Phase -

40 40 CLASSIFICATION YARD 444888 7 5 5 5 373 1 1 1 lok. 9 37 662262 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Gravity shunting 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th - The Second Phase -

41 41 CLASSIFICATION YARD 444888 9 lok. 555373 737 662262 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th - The Second Phase - 1 1 1

42 42 CLASSIFICATION YARD 444888 9 555 lok. 373 737 662262 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th - The Second Phase - 1 1 1

43 43 CLASSIFICATION YARD 444888 9 555 lok. 373 737 662262 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th - The Second Phase - 1 1 1

44 44 CLASSIFICATION YARD 444888 9 555 lok. 373 737 662262 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Shunting onto the hump 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th - The Second Phase - 1 1 1

45 45 CLASSIFICATION YARD 444888662262 7 9 37 555 lok. 373 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Shunting onto the hump 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th - The Second Phase - 1 1 1

46 46 CLASSIFICATION YARD 444888 9 555 662262 737 73 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Shunting onto the hump 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th - The Second Phase - 1 1 1

47 47 CLASSIFICATION YARD 444888 9 555662 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 2 nd, 6 th, 3 rd, 7 th 4 th, 5 th 8 th, 9 th - The Second Phase - Shunting onto the hump 1 1 1

48 48 CLASSIFICATION YARD 444888 9 555 2 66 262 8 th, 9 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The Third Phase - 4 th, 5 th, 6 th, 7 th Gravity shunting 1 1 1

49 49 CLASSIFICATION YARD 444888 9 555 6 66 2 2 2 7 37 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th Gravity shunting 1 1 1

50 50 CLASSIFICATION YARD 444888 9 555 3 666 7 373 lok. 7 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th Gravity shunting 1 1 1 2 2 2

51 51 CLASSIFICATION YARD 444888 9 555666 3 3 lok. 777 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th Gravity shunting 1 1 1 2 2 2 3

52 52 CLASSIFICATION YARD 444888 9 555666 lok. 777 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th 1 1 1 2 2 2 3 3 3

53 53 CLASSIFICATION YARD 444888 9 555666777 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th 1 1 1 2 2 2 3 3 3

54 54 CLASSIFICATION YARD 444888 9 555666777 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th 1 1 1 2 2 2 3 3 3

55 55 CLASSIFICATION YARD 444888 9 555666 lok. 777 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th Shunting onto the hump 1 1 1 2 2 2 3 3 3

56 56 CLASSIFICATION YARD 444888 9 555666 lok. 777 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th Shunting onto the hump 1 1 1 2 2 2 3 3 3

57 57 CLASSIFICATION YARD 444888 9 555 666 lok. 777 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th Shunting onto the hump 1 1 1 2 2 2 3 3 3

58 58 CLASSIFICATION YARD 444 888 9 555 6 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th Shunting onto the hump 1 1 1 2 2 2 3 3 3

59 59 CLASSIFICATION YARD 888 9 444 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Third Phase - 4 th, 5 th, 6 th, 7 th Shunting onto the hump 1 1 1 2 2 2 3 3 3

60 60 CLASSIFICATION YARD 888 9 4 4 4 555 8 th, 9 th Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The Forth Phase - Gravity shunting 1 1 1 2 2 2 3 3 3

61 61 CLASSIFICATION YARD 888 9 5 5 5 666 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Gravity shunting 8 th, 9 th - The Forth Phase - 1 1 1 2 2 2 3 3 3 4 4 4

62 62 CLASSIFICATION YARD 888 9 6 6 6 777 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Gravity shunting 8 th, 9 th - The Forth Phase - 5 5 5 1 1 1 2 2 2 3 3 3 4 4 4

63 63 CLASSIFICATION YARD 888 9 7 7 7 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Gravity shunting 8 th, 9 th - The Forth Phase - 5 5 5 6 6 6 1 1 1 2 2 2 3 3 3 4 4 4

64 64 CLASSIFICATION YARD 888 9 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Gravity shunting 8 th, 9 th - The Forth Phase - 5 5 5 6 6 6 7 7 7 1 1 1 2 2 2 3 3 3 4 4 4

65 65 CLASSIFICATION YARD 888 9 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Forth Phase - 5 5 5 6 6 6 7 7 7 1 1 1 2 2 2 3 3 3 4 4 4

66 66 CLASSIFICATION YARD 888 9 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Forth Phase - 5 5 5 6 6 6 7 7 7 1 1 1 2 2 2 3 3 3 4 4 4

67 67 CLASSIFICATION YARD 888 9 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Forth Phase - 5 5 5 6 6 6 7 7 7 1 1 1 2 2 2 3 3 3 4 4 4

68 68 CLASSIFICATION YARD 888 9 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station 8 th, 9 th - The Forth Phase - Shunting onto the hump 5 5 5 6 6 6 7 7 7 1 1 1 2 2 2 3 3 3 4 4 4

69 69 CLASSIFICATION YARD 888 9 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Shunting onto the hump 8 th, 9 th - The Forth Phase - 5 5 5 6 6 6 7 7 7 1 1 1 2 2 2 3 3 3 4 4 4

70 70 CLASSIFICATION YARD 888 9 lok. Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Shunting onto the hump 8 th, 9 th - The Forth Phase - 5 5 5 6 6 6 7 7 7 1 1 1 2 2 2 3 3 3 4 4 4

71 71 CLASSIFICATION YARD 888 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Shunting onto the hump 8 th, 9 th - The Forth Phase - 5 5 5 6 6 6 7 7 7 1 1 1 2 2 2 3 3 3 4 4 4

72 72 CLASSIFICATION YARD 9 lok. 8 8 8 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The Fifth Phase - Gravity shunting 5 5 5 6 6 6 7 7 7 1 1 1 2 2 2 3 3 3 4 4 4

73 73 CLASSIFICATION YARD lok. 9 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station Gravity shunting - The Fifth Phase - 5 5 5 6 6 6 7 7 7 8 8 8 1 1 1 2 2 2 3 3 3 4 4 4

74 74 CLASSIFICATION YARD 5 5 5 6 6 6 lok. 7 7 7 8 8 8 9 Sorting tracks for final forming of trains Sorting tracks for wagons accumulation by intermediate station - The Fifth Phase - 1 1 1 2 2 2 3 3 3 4 4 4

75 Short description of Simultaneous method Advantages – Forming more then one trains at the same time – Faster forming process with minimal shunting Disadvantages – Requires appropriate adjustment of the timetable and more qualified shunting staff – Begins at the moment when the sufficient number of wagons is gathered for all trains INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS

76 The relationship between – the number of intermediate stations (m) and – required number of sorting tracks (k) ( for accumulation without additional sorting) where INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Mathematical description

77 General rule for wagons accumulation INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS

78 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Objectives Necessary number and length of tracksDuration of trains formationWagons handling performance Number of displacements (coupling and uncoupling)

79 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Simulation steps Set up initial number of tracks Define trains composition number of wagons in the train, number of intermediate stations and distribution of wagons by intermediate stations Experiment changing the train composition and number of intermediate stations analyze results

80 Input parameters: 5 tracks for accumulation process 5 tracks for forming process 30; 35; 40; 45 and 50 wagons per train 5; 7; 9; 10; 13 and 16 intermediate stations Data from the analysis of technology and train operations of Belgrade marshaling yard INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Example: Case of Belgrade marshaling yard

81 Formation process – Uniform lengths Accumulation process – Different lengths – Unacceptable from the point of exploitation and construction INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Simulation results Track lengths

82 in function of number of wagons per train INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Simulation results Duration of trains formation

83 in function of number of stations and number of wagons per train INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Simulation results Wagons handling performance

84 in function of number of stations and number of wagons per train INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Simulation results Number of displacements (coupling and uncoupling)

85 INTRODUCTIONPROBLEM STATEMENT SIMULATION MODEL CONCLUSIONS Easy to model and simulate method using the simulation language GPSS/H Output results enable analysis of processes with pick-up trains in technical freight yard Results can be used in decision making process for designing and exploitation of new technical freight yard

86 THANK YOU FOR YOUR ATTENTION


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