The examples and perspective in this article may not represent a worldwide view of the subject.(September 2023) |
A train dispatcher (US), rail traffic controller (Canada), train controller (Australia), train service controller (Singapore) or signaller (UK), is employed by a railroad to direct and facilitate the movement of trains over an assigned territory, which is usually part, or all, of a railroad operating division. The dispatcher is also responsible for cost effective movement of trains and other on-track railroad equipment to optimize physical (trains) and human resource (crews) assets. [1] [ full citation needed ]
Charles Minot, a Division Superintendent on the Erie Railroad is credited with the first effort to control the movement of a train beyond the rule book and operating timetable, when, in September 1851, he sent a telegram to a railroad employee at another location directing that all trains be held at that point until the train Minot was riding could arrive.[ citation needed ]
From that beginning, a system of train dispatching evolved. The operating rule book, later standardized for all railroads, contained the basic rules for the operation of trains, such as the meaning of the all fixed, audible and hand signals; the form, format and meaning of train orders; and the duties and obligations of each class of employee. The operating, or official, timetable established train numbers and schedules; meeting points for those trains; showed the length of passing tracks at each station as well as indicating the locations where train orders might be issued and contained a variety of other information which might be necessary or useful to train crews operating trains over the territory covered.
Train orders supplemented the timetable and the rule book. They were addressed to a particular train or trains and directed that train or trains to do whatever the train dispatcher had decided needed to be done: meet another train, wait at specified locations, run late on its published schedule, be cautious under the circumstances described or numerous other actions.
Train dispatchers are required to be intimately familiar with the physical characteristics of the railroad territory for which they are responsible, as well as the operating capabilities of the locomotive power being used. Experienced train dispatchers learned the idiosyncrasies of the locomotive engineers and train conductors and melded that knowledge into the operating decisions made. An efficient train dispatcher could utilize the rule book, timetable, train orders and personal experience to move a large number of trains over the assigned territory with minimal delay to any train, even in single-track territory.
Initially, train dispatchers issued train orders using American Morse code over telegraph wires. Later, after the telephone was invented in 1876 and became common, most railroads constructed their own telephone systems, for internal communications, which the train dispatchers used to issue train orders. The last train order known to have been issued using Morse code was copied at Whitehall, Montana, on May 6, 1982, on the Burlington Northern Railroad.[ citation needed ]
Beginning before World War II and accelerating after it, most major railroads installed centralized traffic control (CTC) systems to control train movements. Using CTC, a train dispatcher could align track switches anywhere on the territory so that trains could move into and out of sidings without having to stop and hand throw switches. The train dispatcher could also control the trackside signals governing the movement of trains. Two-way radios enabled train dispatchers to communicate directly with train and engine crews. These capabilities eliminated the need for most train orders, but still required the oversight of a train dispatcher.
In Australia train dispatchers are known as Train/Network controllers. Most train controllers are employed by such Australian State and Federal Government organisations as the Australian Rail Track Corporation, the Public Transport Authority of Western Australia, Queensland Rail, and Sydney Trains. Others are the employees of privately operated railways such as those found in the Pilbara region. The mining giants BHP, Rio Tinto, Fortescue Metals Group and Roy Hill, all operate their own networks from Remote Operation Centres and employ large numbers of train controllers.
In Canada a train dispatcher is known as a rail traffic controller (RTC). The two biggest employers of rail traffic controllers are Canadian National and Canadian Pacific.
In New Zealand a dispatcher is known as a train controller, as in Australia. KiwiRail recently centralised all of its train control functions in a single control centre located in the national capital, Wellington, at the southern end of the North Island.
Singapore refers to their train dispatchers as train service controllers (TSC). On its Mass Rapid Transit (MRT), they run the Operations Control Centre (OCC) and ensure that trains run on time and manage any incidents on the system. [2]
A railway signal is a visual display device that conveys instructions or provides warning of instructions regarding the driver's authority to proceed. The driver interprets the signal's indication and acts accordingly. Typically, a signal might inform the driver of the speed at which the train may safely proceed or it may instruct the driver to stop.
Railway signalling (BE), or railroad signaling (AE), is a system used to control the movement of railway traffic. Trains move on fixed rails, making them uniquely susceptible to collision. This susceptibility is exacerbated by the enormous weight and inertia of a train, which makes it difficult to quickly stop when encountering an obstacle. In the UK, the Regulation of Railways Act 1889 introduced a series of requirements on matters such as the implementation of interlocked block signalling and other safety measures as a direct result of the Armagh rail disaster in that year.
A dispatcher is a communications worker who receives and transmits information to coordinate operations of other personnel and vehicles carrying out a service. Emergency organizations including police departments, fire departments, and emergency medical services departments as well as civilian organizations such as motorcycle couriers, taxicab providers, trucking companies, railroads, bus systems, and public utility companies, use dispatchers to relay information, direct personnel, and coordinate their operations.
A track warrant is a set of instructions issued to a train crew authorizing specific train movements. The system is widely used in North America. The warrant is issued by the train dispatcher and delivered to the train crew via radio. The train crew copies the instructions onto a pre-printed paper form and reads back the warrant to ensure that nothing was misunderstood.
Centralized traffic control (CTC) is a form of railway signalling that originated in North America. CTC consolidates train routing decisions that were previously carried out by local signal operators or the train crews themselves. The system consists of a centralized train dispatcher's office that controls railroad interlockings and traffic flows in portions of the rail system designated as CTC territory. One hallmark of CTC is a control panel with a graphical depiction of the railroad. On this panel, the dispatcher can keep track of trains' locations across the territory that the dispatcher controls. Larger railroads may have multiple dispatcher's offices and even multiple dispatchers for each operating division. These offices are usually located near the busiest yards or stations, and their operational qualities can be compared to air traffic towers.
The River Subdivision is a railroad line owned by CSX Transportation in the U.S. states of New Jersey and New York. The line runs from the North Bergen Yard in Hudson County, New Jersey north to Ravena, New York, along the alignment of the West Shore Railroad, a former New York Central Railroad line.
Train order operation is a system for safely moving trains using train orders, as opposed to fixed signals or cab signalling. In train order operation, a "train order" is an order issued by or through a proper railway official to govern the movement of trains".
Standards for North American railroad signaling in the United States are issued by the Association of American Railroads (AAR), which is a trade association of the railroads of Canada, the US, and Mexico. Their system is loosely based on practices developed in the United Kingdom during the early years of railway development. However, North American practice diverged from that of the United Kingdom due to different operating conditions and economic factors between the two regions. In Canada, the Canadian Rail Operating Rules (CROR) are approved by the Minister of Transport under the authority of the Railway Safety Act. Each railway company or transit authority in Canada issues its own CROR rulebook with special instructions peculiar to each individual property. Among the distinctions are:
Direct traffic control (DTC) is a system for authorizing track occupancy used on some railroads instead of or in addition to signals. It is known as "direct" traffic control because the train dispatcher gives track authority directly to the train crew via radio, as opposed to through wayside personnel via telephone or telegraph, as in train orders.
The Northern Transcon, a route operated by the BNSF Railway, traverses the most northerly route of any railroad in the western United States. This route was originally part of the Chicago, Burlington and Quincy Railroad, Northern Pacific Railway, Great Northern Railway and Spokane, Portland and Seattle Railway systems, merged into the Burlington Northern Railroad system in 1970.
The General Code of Operating Rules (GCOR) is a set of operating rules for railroads in the United States. The GCOR is used by Class I railroads west of Chicago, most of the Class II railroads, and many Short-line railroads.
The Canadian Rail Operating Rules is a set of operating rules for railways in Canada. It is used by every Canadian railway.
A signalman or signaller is an employee of a railway transport network who operates the points and signals from a signal box in order to control the movement of trains.
Automatic block signaling (ABS), spelled automatic block signalling or called track circuit block (TCB) in the UK, is a railroad communications system that consists of a series of signals that divide a railway line into a series of sections, called blocks. The system controls the movement of trains between the blocks using automatic signals. ABS operation is designed to allow trains operating in the same direction to follow each other in a safe manner without risk of rear-end collision.
This article lists some of the terminology used at present and in the past by railway employees, railway enthusiasts and railway historians in Australia. Many appear from time to time in specialist, rail-related publications. Significant regional variations exist, indicated by abbreviations of the state or railway.
Hitachi Rail STS SpA or Hitachi Rail STS is a transportation company owned by Hitachi with a global presence in the field of railway signalling and integrated transport systems for passenger traffic and freight operations. Hitachi Rail STS plans, designs, manufactures, installs and commissions signaling systems, components and technologies for the management and control of newly built or upgraded railways, transit and freight lines worldwide.
Train Dispatcher is a train simulator of centralized traffic control (CTC) systems. It was originally developed in the 1980s as a training tool for a commercial railroad and was then made available to the public. The software is currently produced by SoftRail for Windows-based computers.
Dark territory is a term used in the North American railroad industry to describe a section of running track not controlled by signals. Train movements in dark territory were previously handled by timetable and train order operation, but since the widespread adoption of two way radio communications these have been replaced by track warrants and direct traffic control, with train dispatchers managing train movements directly. Today most dark territory consists of lightly used secondary branch lines and industrial tracks with speeds ranging between 25 miles per hour (40 km/h) and 40 miles per hour (64 km/h); however, there do exist a small minority of main lines that fall into the category.
Charles Minot was an American railroad executive at the Erie Railroad, where in 1850 he became Superintendent as successor of James P. Kirkwood, and was succeeded by Daniel McCallum in 1854. After the bankruptcy of the Erie in 1859 he was reinstated as general superintendent of the Erie railroad.
RailTerm is a North American corporation which provides rail operation services including dispatching, track and signal maintenance, as well as intermodal terminal management. The company also provides signals, communications, and software systems, as well as licenses the TrainMaster Rail Traffic Control (RTC) software to independent railroads. In Canada, Rail-Term Inc. is located in Dorval, Quebec and Mississauga, Ontario. In the United States, RailTerm operates from Rutland, Vermont.