scholarly journals An Accelerated-Time Simulation of Queues at Ticket Offices at Railway Stations

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
A. Almech ◽  
E. Roanes-Lozano

Although nowadays many railway tickets are bought online, still many are bought through rail appointed travel agents and ticket offices at stations. There are several works on microscopic and accelerated-time simulations, some of them related to the topic of this paper, treating passengers movements in railway stations (both of general purpose and also with a focus on specific topics like evacuation, stations design, ticketing, etc.). We focus on a very specific topic: modelling queuing at ticket offices at a main Spanish station where “AVE” (“High-Speed”), “Larga Distancia” (“Long-Distance”), “Media Distancia” (“Middle-Distance”), and “Cercanías” (“Suburban Services”) dedicated windows exist. The existence of “Last Minute” desks is also considered. The goal is to provide the user with a tool that allows to choose the best option for windows distribution along time, after different microscopic simulations based on given data and windows possible distribution are performed (as done in a previous work of one of the authors for airport terminals check-in counters). Special attention is paid to “Last Minute” windows and shared windows (for example simultaneously selling tickets for “Larga Distancia” and “Media Distancia”). Input is given by arrival curves or can be generated by the package. The output is the detailed situation of any window at any moment and the evolution of queues by train or window type. There are different further possible extensions of this work. The implementation has been developed in a computer algebra system in order to minimize the development time.

1905 ◽  
Vol 59 (1537supp) ◽  
pp. 24627-24628
Author(s):  
Charles A. Mudge

Alloy Digest ◽  
1989 ◽  
Vol 38 (1) ◽  

Abstract UNS T12001 is a general-purpose, tungsten, high-speed steel containing nominally 18% tungsten, 4% chromium and 1% vanadium. It is suitable for practically all high-speed applications. This steel has been the standard of the industry for many years because of its cutting ability, ease of heat treatment and minimum tendency to decarburize. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-495. Producer or source: Tool steel mills.


Alloy Digest ◽  
1988 ◽  
Vol 37 (5) ◽  

Abstract UNS No. T11310 is the high vanadium type of molybdenum high-speed steel. It is a deep-hardening steel and offers high cutting ability and excellent finishing properties. It is a general-purpose steel for cutting tools and is used in such applications as taps, lathe tools and reamers. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on heat treating and machining. Filing Code: TS-490. Producer or source: Tool steel mills.


Alloy Digest ◽  
1972 ◽  
Vol 21 (2) ◽  

Abstract AISI TYPE M2 is a molybdenum-tungsten high-speed steel with a balanced analysis which produces properties applicable to all general-purpose high-speed uses. It has an excellent balance between toughness and wear resistance. This datasheet provides information on composition, physical properties, hardness, and compressive strength as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-240. Producer or source: Tool steel mills.


Alloy Digest ◽  
1981 ◽  
Vol 30 (9) ◽  

Abstract GUTERL M-2 is a molybdenum-tungsten type of high-speed steel with fairly good resistance to decarburization. It is a general-purpose high-speed steel and it provides excellent resistance to abrasion and shock. It is used widely for cutting tools. Among its many applications are hack saws, circular saws, lathe tools, gear cutters, planer tools and wood knives. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-387. Producer or source: Guterl Special Steel Corporation.


Alloy Digest ◽  
1979 ◽  
Vol 28 (7) ◽  

Abstract VASCO 8-N-2 is a molybdenum high-speed steel containing a low percentage of tungsten. It can be used successfully for a variety of cutting tools; in fact, it is a general-purpose high-speed steel. Its composition represents the first molybdenum high-speed steel to be manufactured and find practical use in the field of cutting tools. Its many uses include drills, milling cutters, lathe tools, blanking dies and special shear blades. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-351. Producer or source: Teledyne Vasco.


Alloy Digest ◽  
1984 ◽  
Vol 33 (10) ◽  

Abstract JESSOP MUSTANG is a tungsten-molybdenum high-speed steel that contains vanadium. It offers excellent cutting ability and, for most applications, its performance excels the tungsten-base (18 tungsten-4 chromium-1 vanadium) high-speed grades. It is often used as a general-purpose high-speed steel. Among its many applications are boring tools, broaches, cutters, drills, end mills, gear cutters, lathe tools, taps, punches and wood-working knives. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-430. Producer or source: Jessop Steel Company.


Alloy Digest ◽  
1991 ◽  
Vol 40 (6) ◽  

Abstract CARPENTER TEN STAR is a general-purpose molybdenum-bearing high-speed steel. Its excellent wear and cutting properties are the result of its high percentages of carbon and vanadium. It is produced by the ESR (Electro Slag Remelting) process. This datasheet provides information on composition and hardness as well as deformation. It also includes information on forming, heat treating, and machining. Filing Code: TS-344. Producer or source: Carpenter. Originally published as Carpenter Ten Star, January 1979, revised June 1991.


Alloy Digest ◽  
2006 ◽  
Vol 55 (9) ◽  

Abstract Tatmo is a general-purpose high-speed steel often used in twist drills and taps. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on wear resistance as well as forming, heat treating, and machining. Filing Code: TS-633. Producer or source: Timken Latrobe Steel.


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