Re: Latest updates: R-179 order saga, R-160 CBTC for (L) line & special reports ... (1134933) | |||
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Re: Latest updates: R-179 order saga, R-160 CBTC for (L) line & special reports ... |
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Posted by J trainloco on Wed Jan 25 21:23:04 2012, in response to Re: Latest updates: R-179 order saga, R-160 CBTC for (L) line & special reports ..., posted by Edwards! on Wed Jan 25 21:02:48 2012. Signal systems reach a point where the components begin to fail. As a result, they have a lifespan, and have to be replaced. All mechanical equipment has this problem. Especially equipment with moving parts like relays. |
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