**Digital Railway foundation information platform**

The foundation of Digital Railway is the data in all kinds of railway business operation information systems, and now a large number of railway information system has been put into operation, some systems are under construction. Digitalization for these systems means, according to digital integrated display, publishing, management and decision-making needs, that we should demonstrate information and methods for exchange among these systems(both inside and outside), and we also need construct the railway common information platform and realize dynamic information exchange and sharing of business information. To archive the goal that, on the one hand, to meet the business services and management needs, on the other hand, to satisfy management and decision-making needs at all levels of railway operation.

Digital Railway foundation information platform is an important support for Digital Railway, which includes: network communications platform, information sharing platform, common information platform, information security platform and Digital Railway portal, etc. [4-6]

1. **Network Communication Platform:** Railway network communications platform provide Internet backbone communications infrastructure and intelligent communications management platform for ubiquitous digital network communications environment, including the bearer network (wireless and wired transmission network, switching network, access network), network support

Digital Railway System 179

Digital Rail infrastructure and mobile equipment is an important components of Digital Railway, they use of RFID, Internet of Things technology, the uniform code with the railway line bridge and tunnel infrastructure, locomotives, vehicles, EMU, and railway equipments of communication , signals, traction, power, information, and large parts of the RFID-based unified identity management and all of its static and dynamic information management, to develop standards for RFID applications and fitting processes, to make all parts of railway facilities achieved real-time tracking and timely maintenance, to meet the management

Decision support and integrated application is the highest level of Digital Railway applications, through data analysis, virtual simulation and presentation, and cross-business collaboration and other technical means to improve the efficiency of railway operations, operational efficiency, and transport security as the purpose, supporting route selection, service program, passenger and freight marketing decisions, security risk identification and

A large number of key technologies and information standards support the realization of the concept of Digital Railway development. Key technologies of Digital Railway include, such as 3S (GIS, GPS, RS), virtualization, railway spatial data modeling, mass data storing, spatial information sharing, Internet of Things related, cloud computing, etc. technologies Digital Railway information standards include common railway information coding rules based standards, spatial data content and standards, geospatial data exchange standards, GIS shared services standards, geographic information service based on OGC (Open Geospatial

Geographic Information Platform of Digital Railway System is a foundation platform which takes railway spatial information database as the carrier, GIS technologies as the core, achieving railway spatial information and services sharing as the goal. It is responsible for collecting, storing, maintaining and managing of spatial information, which including railway public fundamental spatial information, sharable valuable professional spatial information and related spatial attributed data which gathering from business information systems. Geographic Information Platform also provides spatial information and related

China's railway information systems applied the concept of GIS in varying degrees, and some had already established the GIS subsystem [7], such as information system of permanent way works department (PWMIS), railway land management systems. Ministry of Railways also organize related units to study the overall framework and the programs of railway geographic information systems [8,9]. However, part of the railway business information system uses the different platforms for geographical information, and spatial information sources are not uniform, resulting in spatial information is inconsistent, maintenance workload continued substantial growth, and these are difficult to play overall

Consortium) standards, SOA (Service oriented Architecture) related standards, etc.

needs of Digital Railway to ensure the safety of railway transport.

early warning, emergency response and other business applications.

**1.2 Geographic information platform of digital railway system** 

services which can be shared to business information systems.

**1.2.1 The definition of digital railway geographic information platform** 

**Technologies and information standards** 

(network management, network synchronization , signaling network) and businessapplication-centric integrated data network (business network) and other components. Network communication platform provides information network access and digital information transmission services.


#### **Digital railway geographic information platform**

The core of Digital Railway is railway geographic information platform. Digital geographic information platform provide a unified national railway map, a unified digital geographic information service for railway information systems, support to achieve the train locating, materials positioning, network planning and other services, and all kinds of information related to railway operations, in a unified interface in the virtual space and time display, achieving convergence and sharing of information

#### **Digital railway information systems**

Digital Railway information systems support Digital Railway planning and design, engineering construction, construction and operation management of the entire process, from the composition of a number of information systems. As Digital Railway connotation and core features, and Digital Railway core business value chain, Digital Railway core information systems comprise of planning and design, engineering construction, transport operation organization, passenger and freight services, and business management information systems, etc. Additionally, these information systems highly depend on ubiquitous information provided by Digital Railway infrastructure and Digital Railway mobile equipment.

2. **Information Sharing Platform:** Information Sharing Platform is the assurance to achieve interoperability among Digital Railway systems. One of the dominated construction principle of Digital Railway Information System is service-oriented. Service-oriented system build method provides support for whole process visualization of Digital Railway operations. Digital Railway information sharing platform uses ESB (Enterprise Service

4. **Information Security Platform:** Information security platform provides complete roles and authentication system, secure information resources access totally under user access control, security features through network security domain segmentation for Digital Railway, to ensure reliability, availability, confidentiality, integrity, authenticity

5. **Digital Railway Portal:** Digital Railway portal is integrated a variety of applications, the unified way that interact with the outside for railway for the access of internet services. It is for passengers, shippers, partners, government and industry authorities to provide interactive information services, e-Commerce, e-Government, e-Collaboration applications such as shared information platform, and to optimize business model, expand market channels, improve customer service and enhance the image of the railway.

The core of Digital Railway is railway geographic information platform. Digital geographic information platform provide a unified national railway map, a unified digital geographic information service for railway information systems, support to achieve the train locating, materials positioning, network planning and other services, and all kinds of information related to railway operations, in a unified interface in the virtual space and time display,

Digital Railway information systems support Digital Railway planning and design, engineering construction, construction and operation management of the entire process, from the composition of a number of information systems. As Digital Railway connotation and core features, and Digital Railway core business value chain, Digital Railway core information systems comprise of planning and design, engineering construction, transport operation organization, passenger and freight services, and business management information systems, etc. Additionally, these information systems highly depend on ubiquitous information

provided by Digital Railway infrastructure and Digital Railway mobile equipment.

Bus) -based mode to achieve service-based information system interoperability. 3. **Common Information Platform:** Common information platform provides total quality controlled data services for coding data, metadata, and transport common data, geospatial data, and other public base data, including data directory services, security management, quality management, data integration tools for data through the gathering, cleaning and change, and the way the service bus, serving for the Digital

and digital information transmission services.

Railway information systems information gathering.

**Digital railway geographic information platform** 

achieving convergence and sharing of information

**Digital railway information systems** 

and controllability.

(network management, network synchronization , signaling network) and businessapplication-centric integrated data network (business network) and other components. Network communication platform provides information network access Digital Rail infrastructure and mobile equipment is an important components of Digital Railway, they use of RFID, Internet of Things technology, the uniform code with the railway line bridge and tunnel infrastructure, locomotives, vehicles, EMU, and railway equipments of communication , signals, traction, power, information, and large parts of the RFID-based unified identity management and all of its static and dynamic information management, to develop standards for RFID applications and fitting processes, to make all parts of railway facilities achieved real-time tracking and timely maintenance, to meet the management needs of Digital Railway to ensure the safety of railway transport.

Decision support and integrated application is the highest level of Digital Railway applications, through data analysis, virtual simulation and presentation, and cross-business collaboration and other technical means to improve the efficiency of railway operations, operational efficiency, and transport security as the purpose, supporting route selection, service program, passenger and freight marketing decisions, security risk identification and early warning, emergency response and other business applications.

### **Technologies and information standards**

A large number of key technologies and information standards support the realization of the concept of Digital Railway development. Key technologies of Digital Railway include, such as 3S (GIS, GPS, RS), virtualization, railway spatial data modeling, mass data storing, spatial information sharing, Internet of Things related, cloud computing, etc. technologies Digital Railway information standards include common railway information coding rules based standards, spatial data content and standards, geospatial data exchange standards, GIS shared services standards, geographic information service based on OGC (Open Geospatial Consortium) standards, SOA (Service oriented Architecture) related standards, etc.

## **1.2 Geographic information platform of digital railway system**
