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Theduke71000

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Blog Comments posted by Theduke71000

  1. londonbus.

    Without going into lots of detail (I was a train driver) you must be careful with this selection of photos. 

    The odd "searchlight" signals with a single lens, and the ones with two lens spaced apart, are a type of colour light alternative to semaphore signals, and NOT multi aspect colour lights (MAS) signals. They therefore worked under semaphore signal rules, and could show simultaneously a green and a yellow, as would a semaphore starter and distant positioned one above the other on the same post, seen at night.

     

    The photo with the DMU appears to show 3 aspect (3 lenses) MAS signals NOT IN USE, as they are turned sideways, and are therefore of a totally different type of signalling to the other signals shown. 

     

    Semaphore signals (small) with horizontal red/white/red stripes are subsiduary signals, in this case "Calling on" signals. They allowed a second train to enter an already occupied platform for the purpose of coupling up.

     

    The small but otherwise normally coloured semaphores, are for routes not allowed to loaded passenger trains. As two are positioned one above the other they relate to 2 separate routes and are read: "Top to bottom = left to right".

     

    If you are going to use Eckon/Berko 3 aspect i.e with 3 lenses then these are MAS type signals and should not normally be mixed with semaphores controlled by the same signalbox, as the two systems of signalling used totally different rules !!!!!

     

    Best regards (Basingstoke in OO) Anthony   

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