Abstract
THIS account of the development and details of the “block” system of railway signalling brings together a large amount of interesting information upon a method of regulating railway traffic which has assisted very considerably in bringing about the present state of precision and safety in railway work. The system has been in use for about thirty years, and it now represents the most extensive of all the adaptations of electricity to railway work. Mr. Pigg describes clearly the principles of train signalling and the apparatus employed; he also includes in his work the codes, regulations, and rules relating to railway signals of various kinds. With regard to the lines along which developments will probably be made he remarks:—“Railway signalling appears to have now reached a stage at which some departure from the present methods seems probable. The lines upon which changes will be made will, in all probability, result in a greater degree of automatic control than obtains at present.”
Railway “Block” Signalling.
By James Pigg Pp. 387. (London: Biggs and Co.)
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Railway “Block” Signalling. Nature 59, 148 (1898). https://doi.org/10.1038/059148d0
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DOI: https://doi.org/10.1038/059148d0