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RailTopoModel
RailTopoModel is a systemic data model for describing the topology-based railway infrastructure as needed by various applications. The RailTopoModel has been initially developed under patronage of the International Union of Railways (UIC) and was released as International Railway Standard (IRS) 30100 in April 2016. It has been described as a common data model for the railway sector. RailTopoModel is currently continued by UIC as RailSystemModel, a re-branding resulting from the extension of its scope. On the other hand, RTM development (from RTM 1.2) went on as a fork iniitated by the railML community and managed by the organisation railML.org. Motivation In the field of railway networks, many non-standard descriptions are needed for addressing specific needs: ''RINF'' to describe infrastructure; ETCS for train control and protection; INSPIRE for spatial information. Network operators or suppliers took particular initiatives to harmonize their network representations for gather ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RailML
railML (Railway Markup Language) is a proprietary freeware XML Schema-based data exchange format for data interoperability of railway applications. Motivation The growing number of computer applications modeling different aspects of railway operations, with different operators developing separate solutions parallelly, bore a chronic difficulty of connecting different railway IT applications. The exchange of data for operation concepts, slot management, simulation or infrastructure planning, etc. was possible either by hand or with a lot of special developed interfaces with loss of time and cost problems for railway companies. If there are ''n'' applications that are supposed to exchange data, with a special interface for each pair of programs respectively, \frac interfaces are required — only one, if ''n=2'', but 10, if ''n=5'' — increasing the complexity above average. This problem can be mitigated by means of enterprise application integration with a single, universal excha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Data Model
A common data model (CDM) can refer to any standardised data model which allows for data and information exchange between different applications and data sources. Common data models aim to standardise logical infrastructure so that related applications can "operate on and share the same data", and can be seen as a way to "organize data from many sources that are in different formats into a standard structure". A common data model has been described as one of the components of a " strong information system". A standardised common data model has also been described as a typical component of a well designed agile application besides a common communication protocol. Providing a single common data model within an organisation is one of the typical tasks of a data warehouse. Examples of common data models Border crossings X-trans.eu was a cross-border pilot project between the Free State of Bavaria (Germany) and Upper Austria with the aim of developing a faster procedure for the ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Model
A data model is an abstract model that organizes elements of data and standardizes how they relate to one another and to the properties of real-world entities. For instance, a data model may specify that the data element representing a car be composed of a number of other elements which, in turn, represent the color and size of the car and define its owner. The term data model can refer to two distinct but closely related concepts. Sometimes it refers to an abstract formalization of the objects and relationships found in a particular application domain: for example the customers, products, and orders found in a manufacturing organization. At other times it refers to the set of concepts used in defining such formalizations: for example concepts such as entities, attributes, relations, or tables. So the "data model" of a banking application may be defined using the entity-relationship "data model". This article uses the term in both senses. A data model explicitly determines the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spatial Referencing
Georeferencing means that the internal coordinate system of a map or aerial photo image can be related to a geographic coordinate system. The relevant coordinate transforms are typically stored within the image file (GeoPDF and GeoTIFF are examples), though there are many possible mechanisms for implementing georeferencing. The most visible effect of georeferencing is that display software can show ground coordinates (such as latitude/longitude or UTM coordinates) and also measure ground distances and areas. In other words, georeferencing means to associate a digital image file with locations in physical space. The term is commonly used in the geographic information systems field to describe the process of associating a physical map or raster image of a map with spatial locations. Georeferencing may be applied to any kind of object or structure that can be related to a geographical location, such as points of interest, roads, places, bridges, or buildings. Geographic locations are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Information Technology
Information technology (IT) is the use of computers to create, process, store, retrieve, and exchange all kinds of data . and information. IT forms part of information and communications technology (ICT). An information technology system (IT system) is generally an information system, a communications system, or, more specifically speaking, a computer system — including all hardware, software, and peripheral equipment — operated by a limited group of IT users. Although humans have been storing, retrieving, manipulating, and communicating information since the earliest writing systems were developed, the term ''information technology'' in its modern sense first appeared in a 1958 article published in the ''Harvard Business Review''; authors Harold J. Leavitt and Thomas L. Whisler commented that "the new technology does not yet have a single established name. We shall call it information technology (IT)." Their definition consists of three categories: techniques for pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Réseau Ferré De France
Réseau ferré de France (RFF, french: French Rail Network) was a French company which owned and maintained the France, French national railway network from 1997 to 2014. The company was formed with the rail assets of SNCF in 1997. Afterwards, the trains were operated by the SNCF, the national railway company, but due to EU Directive 91/440, European Union Directive 91/440, the Government of France was required to separate train operations from the railway infrastructure. On 1 January 2015, RFF became ''SNCF Réseau'', the operational assets of SNCF became ''SNCF Mobilités'', and both groups were placed under the control of SNCF. Unlike other infrastructure managers, RFF did not provide maintenance services or rail traffic control operations, which were both done by SNCF Infra on RFF's behalf. Furthermore, SNCF retained the ownership of stations. In September 2013, RFF had over €32 billion of debt. Overview The RFF was constituted with SNCF's infrastructure assets, and debts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ariane (model)
Ariane may refer to: * Ariana (name), also Ariane, Arianne Arts * ''Ariane'' (Martinů), an opera by Bohuslav Martinů, first performed 1961 * ''Ariane'' (Massenet), an opera by Jules Massenet, first performed 1906 * ''Ariane'' (film), a 1931 German film directed by Paul Czinner * Ariane Films, a former French film production company * ''Ariane'', a play by Thomas Corneille (1625–1709) * ''Ariane'', the name of the 1957 film '' Love in the Afternoon'' in French speaking markets Transportation * Simca Ariane, a French car by Simca, 1957–1963 * Ariane (automobile), a French car by Automobiles Ariane, 1907 * French ship ''Ariane'', the name of several French ships * Ariane (rocket family), European rockets operated by Arianespace Other uses * Ariane (apple), an apple cultivar * 1225 Ariane, an asteroid * Ariane, a brand name of the antiandrogen rezvilutamide * Tour Ariane (Ariane Tower), an office building west of Paris See also * Ariadna (other) * Ariadne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Signal
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. Application and positioning of signals Originally, signals displayed simple stop or proceed indications. As traffic density increased, this proved to be too limiting and refinements were added. One such refinement was the addition of distant signals on the approach to stop signals. The distant signal gave the driver warning that they were approaching a signal which might require a stop. This allowed for an overall increase in speed, since train drivers no longer had to drive at a speed within sighting distance of the stop signal. Under timetable and train order operation, the signals did not directly convey orders to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topology
In mathematics, topology (from the Greek language, Greek words , and ) is concerned with the properties of a mathematical object, geometric object that are preserved under Continuous function, continuous Deformation theory, deformations, such as Stretch factor, stretching, Twist (mathematics), twisting, crumpling, and bending; that is, without closing holes, opening holes, tearing, gluing, or passing through itself. A topological space is a set (mathematics), set endowed with a structure, called a ''Topology (structure), topology'', which allows defining continuous deformation of subspaces, and, more generally, all kinds of continuity (mathematics), continuity. Euclidean spaces, and, more generally, metric spaces are examples of a topological space, as any distance or metric defines a topology. The deformations that are considered in topology are homeomorphisms and homotopy, homotopies. A property that is invariant under such deformations is a topological property. Basic exampl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linear Referencing System
Linear referencing, also called linear reference system or linear referencing system (LRS), is a method of spatial referencing in engineering and construction, in which the locations of physical features along a linear element are described in terms of measurements from a fixed point, such as a milestone along a road. Each feature is located by either a point (e.g. a signpost) or a line (e.g. a no-passing zone). If a segment of the linear element or route is changed, only those locations on the changed segment need to be updated. Linear referencing is suitable for management of data related to linear features like roads, railways, oil and gas transmission pipelines, power and data transmission lines, and rivers. Motivation A system for identifying the location of pipeline features and characteristics is by measuring distance from the start of the pipeline. An example linear reference address is: Engineering Station 1145 + 86 on pipeline Alpha = 114,586 feet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RTM LinearPositioning
RTM may refer to: Organisations * Réseau de transport métropolitain, the public transport authority for Greater Montreal * Régie des Transports de Métropolitains, public transport authority and operator of the Marseille Metro * RTM Restaurant Group, an Arby's franchise * Rotterdamse Tramweg Maatschappij, a former tram operator in Rotterdam, Netherlands Media * Radio Televisyen Malaysia, a Malaysian state-owned public broadcaster * Radio Thamesmead, defunct South-East London radio station renamed to Time 106.8 * Radiodiffusion-Télévision du Mali, the primary radio and television network of the Malian state broadcaster * Right This Minute, an American television program about viral videos Places * Rotterdam The Hague Airport, by IATA code * Reading Terminal Market, a farmer's market in Philadelphia * Royal Tyrrell Museum in Drumheller Technology and Internet * Read the manual * Release to manufacturing, a stage in the software release life cycle * Remember the Milk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RTM Aggregation
RTM may refer to: Organisations * Réseau de transport métropolitain, the public transport authority for Greater Montreal * Régie des Transports de Métropolitains, public transport authority and operator of the Marseille Metro * RTM Restaurant Group, an Arby's franchise * Rotterdamse Tramweg Maatschappij, a former tram operator in Rotterdam, Netherlands Media * Radio Televisyen Malaysia, a Malaysian state-owned public broadcaster * Radio Thamesmead, defunct South-East London radio station renamed to Time 106.8 * Radiodiffusion-Télévision du Mali, the primary radio and television network of the Malian state broadcaster * Right This Minute, an American television program about viral videos Places * Rotterdam The Hague Airport, by IATA code * Reading Terminal Market, a farmer's market in Philadelphia * Royal Tyrrell Museum in Drumheller Technology and Internet * Read the manual * Release to manufacturing, a stage in the software release life cycle * Remember the Milk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
