This shows you the differences between two versions of the page.
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usertrack:mans:nescotmech [2010/07/05 00:02] uktrainman typos |
usertrack:mans:nescotmech [2010/07/26 16:37] (current) uktrainman til/till replaced with until plus a few other minor changes |
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| **Mechanical box operation** | **Mechanical box operation** | ||
| - | The SimSig IECC platform was not designed with mechanical signalling in mind, nevertheless it has been possible to create the essential characteristics of their operation. It should be accepted that this is just a representation and it is acknowledged that there are alternative ways it could have been done. | + | The SimSig IECC platform was not designed with mechanical signalling in mind, nevertheless it has been possible to create the essential characteristics of their operation. It should be accepted that this is just a representation and it is acknowledged that there are alternative ways it could have been done. |
| - | Sections of lines that are not track circuited are shown as hollow track- you will only be able to follow the progress of the train by watching the TD or F2 menu though there is an option to display these sections as lit TCs at sim launch. | + | Sections of lines that are not track circuited are shown as hollow track - you will only be able to follow the progress of the train by watching the TD or F2 menu though there is an option to display these sections as lit TCs at sim launch. |
| __Principles.__\\ | __Principles.__\\ | ||
| Line 9: | Line 9: | ||
| A distant will not change from Yellow to Green until all the section signals are off, except where a train has already passed it before the section is fully cleared. Distant will be replaced when a train reaches a trigger point, which will normally be the first (normally) displayed track circuit. | A distant will not change from Yellow to Green until all the section signals are off, except where a train has already passed it before the section is fully cleared. Distant will be replaced when a train reaches a trigger point, which will normally be the first (normally) displayed track circuit. | ||
| - | Home signals must be pulled off in the correct order, which is generally the direction of travel, you will not be able to pull off a home if the next one is already off- in other words you must replace all the signals once a train has passed to be able to start the sequence again (as above signals will not [[usertrack:glossary:torr|TORR]]). | + | Home signals must be pulled off in the correct order, which is generally the direction of travel, you will not be able to pull off a home if the next one is already off - in other words you must replace all the signals once a train has passed to be able to start the sequence again (as above signals will not [[usertrack:glossary:torr|TORR]]). |
| __Train dynamics__\\ | __Train dynamics__\\ | ||
| - | In order to maintain the correct train dynamics some of the ‘home’ signals are in reality 3 aspect with a hidden Yellow. If a train passes a Distant at Yellow then any intermediate home will be read as a Yellow too and the train will travel at the appropriate speed (max 40mph) till the end of the section and there is a Green. | + | In order to maintain the correct train dynamics some of the ‘home’ signals are in reality 3 aspect with a hidden Yellow. If a train passes a Distant at Yellow then any intermediate home will be read as a Yellow too and the train will travel at the appropriate speed (max 40mph) until the end of the section and there is a Green. |
| - | At Montrose South you will see what looks like 4 aspect signalling- this is where the Distant signal of one box shares a post with a home signal of another. The train dynamics read the signal as being the most restrictive aspect displayed, which ever that is. | + | At Montrose South you will see what looks like 4 aspect signalling - this is where the Distant signal of one box shares a post with a home signal of another. The train dynamics read the signal as being the most restrictive aspect displayed, which ever that is. |
| __Clearing points__\\ | __Clearing points__\\ | ||