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Blog Entry# 302574
Posted: Dec 12 2011 (19:47)
16 Responses
Last Response: Dec 12 2011 (20:23)
16 Responses
Last Response: Dec 12 2011 (20:23)
i have one more query:
if anyone remembers the good old days of railways, the loco pilot used to throw a key shaped ring at passing stations...can anyone plz tell me what where those?
if anyone remembers the good old days of railways, the loco pilot used to throw a key shaped ring at passing stations...can anyone plz tell me what where those?
13 Posts
A token block system uses a physical item (the token) of some sort, such as a ball as in the Neale's Ball token system , which is physically carried or manipulated in some way to indicate permission for a train to enter a block of track. A tokenless system, such as may be obtained by a combination of interlocking and semaphore signals, does not require the train crew to carry or manipulate anything tangible to enter or leave a block of track; they follow the signals and interlocking handles the rest.
(There are also token systems where the 'token' is an electronic radio signal with a code on it that is transmitted to the loco; such systems are not in use in...
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(There are also token systems where the 'token' is an electronic radio signal with a code on it that is transmitted to the loco; such systems are not in use in...
more...
Same thing can be observed b/w Gudivada-Bhimavaram for all trains. There is one old bridge with 5 kms speed restriction. So every driver must stop the train at that bridge and collect token form track man and should be returned to SM of next station. It happens with all trains like Circar Exp, Narsapur Exp, VSKP-LTT exp and all passenger trains that pass through this route.
In railway signalling, a token is a physical object which a locomotive driver is required to have or see before entering onto a particular section of single track. The token is clearly endorsed with the name of the section it belongs to. A token system is used for single lines because of the very much greater risk of serious collision in the event of irregular working by signalmen or traincrews, than on double lines.