Pic 5 of 32: Twin aspect signal in UBL division? A long exposure shot captures both aspects of the starter for YPR-VSG at Devanur. 2009-09-08, Bizzy Mishra ()

Date: 2009-09-09
Owner: Bizzy Mishra
Size:
Full size: 1280x720

Photo Properties
Summary  Details
Make SONY Model DSC-H5
Aperture Value f/4 Color Space sRGB
Exposure Program Manual Flash No Flash
ISO 80 Metering Mode Center Weighted Average
Shutter Speed Value 8 Date/Time 2009 Sep 08 22:23:11 +0100

Comments
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@ Ramdev...Thanks a lot for the clarification. I am aware that this is not twin-aspect signalling. In reality, this was a 15 sec exposure, during which the aspect of the starter changed from danger to caution, making it look like twin-aspect. Sorry...
Posted by Bizzy Mishra on 2009 Oct 16 15:06:38 +0100
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I guess that you have presumed this to be two aspect signalling since you can see only either red or green signal. This is because the train is on the mainline and mainline starter signal has only two aspects i.e either proceed of danger and no caution ...
Posted by Ramdev Gowda on 2009 Oct 15 14:36:22 +0100
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It is not two aspect signalling since two aspect signalling is used in sections where a downgoing train has to take a loop line at the station and then again take the main line after taking the loop. In this case the home advance signal is always at...
Posted by Ramdev Gowda on 2009 Oct 15 04:49:39 +0100