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The Research Designs & Standards Organisation (RDSO) is the research and development and railway technical specification development organisation under the Ministry of Railways of the Government of India, which functions as a technical adviser and consultant to the Railway Board, the Zonal Railways, the Railway Production Units, RITES, RailTel and Ircon International in respect of design and ...
The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings. The pantograph is a common type of current collector; typically, a single or double wire is used, with the return current running through the rails. Other types of current collectors include the bow collector and the ...
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
A refuge siding is a single-ended, or dead-end, siding off a running line, [1] which may be used to temporarily accommodate a train so that another one can pass it. For example, a refuge siding might be used by a slow goods train to allow a fast passenger train to pass. [ 2 ]
In 1993, the San Diego Metropolitan Transit System ordered 52 SD-100 cars as the San Diego Trolley system was expanded with a new line, these entered service in 1995. In Early 2021, they were being phased out and in 2023 have been retired from service being replaced by the newer Siemens S700 models.
A piano trolley or piano dolly is a two- or four-wheeled trolley featuring a stronger-than-usual frame. [4] They are typically measuring approximately 50 to 80 cm ( 19 + 5 ⁄ 8 to 31 + 1 ⁄ 2 in) long and are used by removals companies for moving pianos.
The Green Line is the third line in the San Diego Trolley system, with service beginning on July 10, 2005 along with the completion and opening of the 5.9 miles (9.5 km) [1] Mission Valley East extension. [9] The line primarily operates on this extension as well as a segment previously served by the Blue Line between Old Town and Mission San Diego.
The rail trolley idea started in the 1920s, but sales really took off in the 1930s with a large order from LNER, leading to their adoption across British Railways after it was formed in 1948. While the rail trolleys became their main product, Wickham provided many other products including railcars, coal mine man-riding cars, steam cleaners ...