By F. Richard Yu
With speedy inhabitants explosion, bettering rail transit pace and potential is strongly fascinating around the globe. Communication-based educate keep an eye on (CBTC) is an automatic educate regulate approach utilizing excessive ability bidirectional train–ground communications to make sure the secure operation of rail automobiles. This e-book provides the newest advances in CBTC study. The contributed chapters from prime specialists within the box hide assorted elements of modelling, research, layout, checking out, administration, deployment, and optimization of CBTC systems.
Advances in Communications-Based teach keep an eye on Systems starts with the heritage and evolution of educate signaling/train regulate platforms. It introduces the most good points and structure of CBTC structures and describes present demanding situations and profitable implementations around the globe. next contributed chapters talk about such key examine components as
- Nondestructive checking out concepts that may be hired to examine rails and fastening parts
- New instant channel modelling strategies for underground tunnels and viaducts
- Advanced instant conversation platforms to enhance CBTC verbal exchange availability
- Schemes to combine teach keep watch over and train-ground communications through modelling the keep watch over procedure of a gaggle of trains in CBTC as a networked keep an eye on system
- Use of cognitive keep watch over to enhance educate keep watch over functionality, contemplating either train–ground conversation and teach control
The ebook contains many aiding illustrations and tables besides a necessary set of references on the finish of every bankruptcy. With this e-book, researchers and practitioners can be well-equipped to boost the examine and improvement during this vital field.
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Extra info for Advances in Communications-Based Train Control Systems
Because the number of real CCs and real ZCs is limited, endurance tests are still relatively far from real-life system endurance. Successful witnessing of FATs is a prerequisite to the start of functional tests onsite. At the end of the tests, some issues will be detected regarding implementation or design. Deciding what issues need to be resolved before the software is sent on-site is a delicate topic. CBTC suppliers tend to minimize the impact of issues, although the transit agency desires that all known errors be corrected.
CBTC systems allow this type of intensive factory testing and only a few parts cannot be completely tested in the factory. For instance, the interface with the rolling stock cannot be completely tested in the factory. Other parts that cannot be tested are the radio coverage and the database for field data. Functions related to the management of a large number of trains are also difficult to test at the system level. Despite the use of powerful tools such as integrated system factory setup and simulators, it is frequent that anomalies that could have been discovered in the platform are discovered on-site.
However, the safety-related function to check that the CC enables door opening on the proper side of the track and only within the platform boundary is performed for each platform. Most of the CBTC issues found on-site are not related to any preidentified tests. The tests that verify the CBTC requirements have already been performed in the factory, and, therefore, it is unlikely that a new error that cannot be discovered in factory is found on-site. Special tests that were not identified during development of the factory and field test procedures, because they do not correspond to any requirement, are where most issues are detected in the field.