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% Document Info
\author{P. Williams}
\pdfinfo{
  /Title (dovedale.pdf)
  /Creator (Cheatography)
  /Author (P. Williams)
  /Subject (Dovedale Cheat Sheet)
}

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\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
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    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Dovedale Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{P. Williams} via \textcolor{DarkBackground}{\uline{cheatography.com/210850/cs/46267/}}}
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\noindent
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}P. Williams \\
  \uline{cheatography.com/p-williams} \\
  \end{tabulary}
\vfill
\columnbreak
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  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 9th May, 2025.\\
   Page {\thepage} of \pageref{LastPage}.
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
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\raggedright
\raggedcolumns

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\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{2.83689 cm} x{2.14011 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Bell Codes}}  \tn
% Row 0
\SetRowColor{LightBackground}
Call attention & 1 \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
Class 1 & 4 \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
Class 2 & 3-1 \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
Class 3 & 1-3-1 \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
Class 5 & 2-2-1 \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
Class 9 & 1-4 \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
Class 0 & 2-3 \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
Train incorrectly described & 5-3 \tn 
% Row Count 9 (+ 2)
% Row 8
\SetRowColor{LightBackground}
Cancelling & 3-5 \tn 
% Row Count 10 (+ 1)
% Row 9
\SetRowColor{white}
Train entering section & 2 \tn 
% Row Count 11 (+ 1)
% Row 10
\SetRowColor{LightBackground}
Train out of section & 2-1 \tn 
% Row Count 12 (+ 1)
% Row 11
\SetRowColor{white}
Obstruction danger & 6 \tn 
% Row Count 13 (+ 1)
% Row 12
\SetRowColor{LightBackground}
Obstruction removed & 2-1-2 \tn 
% Row Count 14 (+ 1)
% Row 13
\SetRowColor{white}
Opening Signal Box & 5-5-5 \tn 
% Row Count 15 (+ 1)
% Row 14
\SetRowColor{LightBackground}
Closure of signal box & 7-5-5 \tn 
% Row Count 16 (+ 1)
% Row 15
\SetRowColor{white}
Testing Equipment & 16 \tn 
% Row Count 17 (+ 1)
% Row 16
\SetRowColor{LightBackground}
Shunting into forward section & 3-3-2 \tn 
% Row Count 19 (+ 2)
% Row 17
\SetRowColor{white}
Shunt withdrawn & 8 \tn 
% Row Count 20 (+ 1)
% Row 18
\SetRowColor{LightBackground}
Blocking back outside home & 3-3 \tn 
% Row Count 22 (+ 2)
% Row 19
\SetRowColor{white}
Stop and examine train & 7 \tn 
% Row Count 23 (+ 1)
% Row 20
\SetRowColor{LightBackground}
SPAD right direction & 4-5-5 \tn 
% Row Count 24 (+ 1)
% Row 21
\SetRowColor{white}
SPAD wrong direction & 2-5-5 \tn 
% Row Count 25 (+ 1)
% Row 22
\SetRowColor{LightBackground}
Train passed w/o tail lamp & 9 (forward) 4-5 (back) \tn 
% Row Count 27 (+ 2)
% Row 23
\SetRowColor{white}
Release token & 5-2 \tn 
% Row Count 28 (+ 1)
% Row 24
\SetRowColor{LightBackground}
Token replaced & 2-5 \tn 
% Row Count 29 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Checking and Testing Equipment}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{- Where provided, you must test the bells and block indicators as long as no train has been signalled or is due to be signalled. \newline % Row Count 3 (+ 3)
- Bell 16 \newline % Row Count 4 (+ 1)
- Move the block indicator to Line Clear \textgreater{} Train on Line \textgreater{} Normal \newline % Row Count 6 (+ 2)
- Clear section signal and return to danger at Line Clear Position \newline % Row Count 8 (+ 2)
- After this is done, do the same for the adjacent box, the adjacent box will acknowledge your 16 to complete the test. \newline % Row Count 11 (+ 3)
{\bf{ETB}} \newline % Row Count 12 (+ 1)
- Bell 16 \newline % Row Count 13 (+ 1)
- Remove token and clear section signal \newline % Row Count 14 (+ 1)
- Ensure the adjacent box does the same \newline % Row Count 15 (+ 1)
- Adjacent box will acknowledge your 16% Row Count 16 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Stop and Examine Reasons}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Signals of alarm} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{An insecure load} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Train half derailed or does not seem fit to proceed} \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Other mishaps} \tn 
% Row Count 5 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Stop and Examine Procedure}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{If you become aware of anything unusual or wrong with a train, or you receive stop and examine train (7), you must immediately: \newline % Row Count 3 (+ 3)
- Stop the train concerned \newline % Row Count 4 (+ 1)
- Tell the signaller who controls the area from which the train approached what has happened \newline % Row Count 6 (+ 2)
- Arrange for the train to be examined and dealt with as necessary \newline % Row Count 8 (+ 2)
If you cannot stop the train concerned before it enters the area controlled by another signaller, you must immediately tell that signaller what has happened by sending stop and examine train. \newline % Row Count 12 (+ 4)
If the driver has stated that the train is fit to proceed, or a competent person and yourself have agreed that the train is fit to proceed, you may signal the train as normal.  \newline % Row Count 16 (+ 4)
If the train is deemed not fit to resume normal working then the driver should be instructed to jump out of the train so it is deleted.% Row Count 19 (+ 3)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{When to send obstruction danger}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{If you need to stop trains from signal box A because of an obstruction or other emergency between your signal box and signal box A, or within the section at your signal box, you must immediately and without sending call attention, send obstruction danger (6) to signal box A. \newline % Row Count 6 (+ 6)
You must do this whether or not you have received is line clear or train entering section bell codes. You do not need to send obstruction danger if the obstruction is only affecting the line for trains heading towards you from signal box A. \newline % Row Count 11 (+ 5)
You must also send obstruction danger when you see, or become aware of, a train approaching for which you have not: \newline % Row Count 14 (+ 3)
- Acknowledged is line clear \newline % Row Count 15 (+ 1)
- Received train entering section \newline % Row Count 16 (+ 1)
- Received train or vehicles proceeding without authority in the right direction \newline % Row Count 18 (+ 2)
- Acknowledged shunting into forward section.% Row Count 19 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Sending obstruction danger}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{When sending the obstruction danger bell code, you must: \newline % Row Count 2 (+ 2)
Place or keep the block indicator to train on line until the obstruction has been removed \newline % Row Count 4 (+ 2)
If necessary, place or keep your signals at danger to protect the obstruction \newline % Row Count 6 (+ 2)
You must then immediately tell the signaller at signal box A the reason for sending obstruction danger via box or global chat. You must reach a clear understanding of those lines that must remain blocked and those that can be reopened for trains. \newline % Row Count 11 (+ 5)
If, after you have sent obstruction danger to signal box A, you receive train proceeding without authority in the right direction for a train which had been accepted before obstruction danger was sent, you must take all possible actions to stop the approaching train. \newline % Row Count 17 (+ 6)
Only then must you acknowledge train proceeding without authority in the right direction.  If you receive cancelling from the signaller at signal box A for a train which had been accepted before you sent obstruction danger, you must acknowledge cancelling but you must keep the block indicator at train on line until the obstruction has been removed.% Row Count 24 (+ 7)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Receiving Obstruction Danger}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{If you receive obstruction danger (6) from signal box B, you must: immediately place or keep all signals leading towards signal box B at danger, and place or keep the block indicator for the line from signal box B at train on line and keep it in this position until you are sure that line is clear and you have sent the bell code for obstruction removed. Should no train have been signalled towards signal box B, you must acknowledge obstruction danger. \newline % Row Count 10 (+ 10)
If you cannot stop a train heading towards signal box B, or there is already a train in the section, you must not acknowledge obstruction danger but immediately send train proceeding without authority in the right direction to signal box B. \newline % Row Count 15 (+ 5)
If you succeed in stopping a train heading towards signal box B for which is line clear has been acknowledged, you must, after acknowledging obstruction danger, send cancelling to signal box B. \newline % Row Count 19 (+ 4)
You must find out the reason why obstruction danger was sent. You must reach a clear understanding of those lines that must remain blocked and those that can be reopened for trains. \newline % Row Count 23 (+ 4)
You must not allow any train to proceed towards signal box B until you have received obstruction removed and the signaller at signal box B has acknowledged is line clear.% Row Count 27 (+ 4)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{When the obstruction has been removed}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{When the obstruction has been removed or a train can pass clear of the obstruction, you must send obstruction removed to Signal Box A and place the block indicator to normal. \newline % Row Count 4 (+ 4)
However, if the signaller at signal box A had been unable to stop a train for which is line clear has been acknowledged, you must not send obstruction removed to signal box A until that train is clear of the section as shown in regulation 'sending train out of section'.% Row Count 10 (+ 6)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.34379 cm} x{3.63321 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Lever Colours}}  \tn
% Row 0
\SetRowColor{LightBackground}
Red & Controls stop signals or shunt signals. \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Yellow & Controls distant signals \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
Red over Yellow & Controls an intermediate block signal, consistinjg of both a stop signal and a distant signal \tn 
% Row Count 7 (+ 4)
% Row 3
\SetRowColor{white}
Blue & Controls facing point locks \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
Black & Controls points \tn 
% Row Count 9 (+ 1)
% Row 5
\SetRowColor{white}
Blue over Black & Controls electrically operated combined points and FPLs. \tn 
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
White over Blue & Spare levers previously connected to a FPL which have been replaced with electrically operated points. \tn 
% Row Count 15 (+ 4)
% Row 7
\SetRowColor{white}
Brown & Controls crossing/gate interlocks \tn 
% Row Count 17 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Clearing Routes}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{- {\bf{Determine Train Information:}} You need to know its classification, destination, location from which it will be approaching, length and any other relevant information before deciding how to route it. If a train has been offered by another box, the signaller should provide you with any required information by telephone. \newline % Row Count 7 (+ 7)
- {\bf{Set Route:}} Once you know the necessary information, decide how you will route it through your area. Consider what platform to use, whether there are any length restrictions, etc. Set points and FPLs. Take note of which signals will need to be cleared, but do not clear them immediately. \newline % Row Count 13 (+ 6)
- {\bf{Clear Signals:}} When the train has entered the section in rear of your box, you should clear your home signals for the route you have set. Once you receive clearance to send the train to the next signal box you can clear the starter signals and distant signal.% Row Count 19 (+ 6)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Ground Frames}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Before you give a release for a ground frame, you must reach a clear understanding with the ground frame operator about: \newline % Row Count 3 (+ 3)
-The movement to be made \newline % Row Count 4 (+ 1)
- Whether or not the train is to be shunt in \newline % Row Count 5 (+ 1)
If the train is to be shut in, before you restore the ground frame release to normal operation, you must get confirmation from the ground frame operator that the train is clear of the running line. You must not release the ground frame for a movement from the siding to the running line until all track circuits are clear: \newline % Row Count 12 (+ 7)
- Between the protecting signal for the running line and the points to be released \newline % Row Count 14 (+ 2)
- To the next main running signal on the line to which the movement is to be made unless the Signal Box Special Instructions allow a movement onto an occupied line \newline % Row Count 18 (+ 4)
If the ground frame line releases into an Absolute Block section, you must obtain permission from the signaller controlling that section before performing the movement.% Row Count 22 (+ 4)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Shunting into forward section}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{You must not allow a train to enter the forward section for shunting purposes until you have sent shunting into forward section (3-3-2), and the signaller at signal box B has acknowledged this. (Signal box A) \newline % Row Count 5 (+ 5)
You may send this bell signal if the position of the block indicator is normal or at train on line. (Signal box A) \newline % Row Count 8 (+ 3)
When the line is clear to the home signal, you must acknowledge shunting into forward section and place the block indicator to line clear if the block controls allow you to do this. (Signal box B) \newline % Row Count 12 (+ 4)
When the train is ready to enter the section for shunting purposes and you have reached a clear understanding with the driver, you must: \newline % Row Count 15 (+ 3)
 - Clear the signal if you can, or instruct the driver to pass the section signal at danger \newline % Row Count 17 (+ 2)
 - Send train entering section to signal box B. (Signal box A) \newline % Row Count 19 (+ 2)
When you receive train entering section from signal box A, you must place or keep the block indicator at train on line. You may allow the line up to the home signal to be occupied, fouled or obstructed until you receive shunt withdrawn (8) from signal box A. (Signal box B)% Row Count 25 (+ 6)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Completion of Shunting Movement}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{When the movement is completed and the forward section is again clear, you must send shunt withdrawn to signal box B. (Signal box A) \newline % Row Count 3 (+ 3)
You must acknowledge shunt withdrawn to signal box A and then take one of the following actions. (Signal box B) \newline % Row Count 6 (+ 3)
If the block indicator was normal when shunting into forward section was acknowledged and if the line up to the home signal is clear, place the block indicator to normal. \newline % Row Count 10 (+ 4)
If the block indicator was at train on line when shunting into forward section was acknowledged, and if the line is still obstructed, you must keep the block indicator at train on line, or if the line is now clear, you must send train out of section or \newline % Row Count 16 (+ 6)
obstruction removed depending on the circumstances and place the block indicator to normal.% Row Count 18 (+ 2)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Sending Train without Tail Lamp}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{If a train passes without a tail lamp, or you are not sure that it has a tail lamp and you cannot deal with the train before it enters the section, or to do so would mean bringing the train to a sudden stop, \newline % Row Count 5 (+ 5)
You must: \newline % Row Count 6 (+ 1)
Send train passed without tail lamp (9) to signal box C \newline % Row Count 8 (+ 2)
Not send train out of section to the signal box A, but instead send train passed without tail lamp (4-5) \newline % Row Count 11 (+ 3)
Keep the block indicator at train on line. \newline % Row Count 12 (+ 1)
You must stop the first train travelling towards signal box A. Tell the driver what is going on, and instruct to proceed at cuation when the signal is cleared. Inform the driver to report if anything is seen to be abnormal. \newline % Row Count 17 (+ 5)
If you receive train out of section from signal box C, or the signaller there tells you the train is complete, you must send train out of section to signal box A and place the block indicator to normal.% Row Count 22 (+ 5)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Recieving}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{If you receive train passed without tail lamp (9), you must stop the approaching train and find out if it is complete. \newline % Row Count 3 (+ 3)
If the train is complete and the line is clear as shown in regulation 'Sending train out of section', you must send train out of section to signal box B, and place the block indicator to normal. \newline % Row Count 7 (+ 4)
If the train is complete but you are not in a position to send train out of section, you must tell the signaller at signal box B that the train is complete. If the train is not complete, you must tell the signaller at signal box B and take any other necessary action depending on the circumstances. A staff member should be called to inspect the line and delete any detached train, if necessary.% Row Count 15 (+ 8)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.94103 cm} x{3.03597 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Signal Types}}  \tn
% Row 0
\SetRowColor{LightBackground}
Home Signals & Placed in the rear of the box and are the first encountered. Placed before any points. Will generally control which platform or line trains are routed towards. There can be multiple home signals to allow higher traffic flow. Inner \textgreater{} Intermediate \textgreater{} Outer \tn 
% Row Count 11 (+ 11)
% Row 1
\SetRowColor{white}
Starter Signals & Signals placed near or in advance of the box so that the signaler can check that the train is complete before it proceeds. At stations the first starter signals will be on the platform. There are often multiple in succession: Starter \textgreater{} Advanced Starter \textgreater{} Outer advanced starter \tn 
% Row Count 23 (+ 12)
% Row 2
\SetRowColor{LightBackground}
Section Signals & A section signal is any controlling the enterance to a block section. They are not actually a type of signal (and will always be a starter signal). They are marked with a white stripe to indicate they must be released by an adjacent box. \tn 
% Row Count 33 (+ 10)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{1.94103 cm} x{3.03597 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Signal Types (cont)}}  \tn
% Row 3
\SetRowColor{LightBackground}
Intermediate Block Signals & Consist of both a stop and distant signal within block section, controlled by one lever. \tn 
% Row Count 4 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.09034 cm} x{2.88666 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Blocking Back}}  \tn
% Row 0
\SetRowColor{LightBackground}
Blocking Back & You must send blocking back outside home signal, and when this has been acknowledged, place or keep the block indicator at train on line.  You may only allow the line outside the home signal to be occupied when blocking back outside home signal has been acknowledged, and the block indicator is at train on line. \tn 
% Row Count 14 (+ 14)
% Row 1
\SetRowColor{white}
Blocking Back Acknowledgement & You must not acknowledge blocking back outside home signal if you have allowed a movement to be made which would conflict with a movement at signal box B, unless you are sure that such a movement could be made safely. \tn 
% Row Count 24 (+ 10)
% Row 2
\SetRowColor{LightBackground}
When the line is clear & When the line is again clear to the home signal, you must send obstruction removed to signal box A, and place the block indicator to normal. \tn 
% Row Count 31 (+ 7)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Working Signalling Equipment}}  \tn
% Row 0
\SetRowColor{LightBackground}
Distant Signal & Replace as soon as the train has passed the signal \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
Stop Signal & Replace to danger as soon as the last vehicle of the train has passed the signal. \tn 
% Row Count 8 (+ 5)
% Row 2
\SetRowColor{LightBackground}
Stopped on approach Side of a Stop Signal & Replace the signal to danger. If you have cleared a signal for a train to proceed, you must not replace it to danger if this will cause the driver to see an irregular sequence of aspects or indications. \tn 
% Row Count 19 (+ 11)
% Row 3
\SetRowColor{white}
Emergency & If you replaced any signal to danger, you must make sure the driver is aware you have done so. If you cannot clear a stop signal, you must not clear any associated signals on the approach to it until the train has stopped or nearly stopped at each signal in turn. You do not need to apply this if the stop signal on the approach to the stop signal at danger is a colour light that can show a yellow aspect. \tn 
% Row Count 40 (+ 21)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Working Signalling Equipment (cont)}}  \tn
% Row 4
\SetRowColor{LightBackground}
Diverging Junction & If the signal at a diverging junction does not have approach release arrangements, you must not clear the signal for a route where the speed must be reduced, until the train is close to the signal. \tn 
% Row Count 10 (+ 10)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Train Proceeding w/o Authority - Immediate Actions}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{If a train or vehicle proceeds without authority in the right direction, or has entered the section without your authority, you must send the bell code for 'train proceeding without authority in the right direction' to Signal Box B. You are then to stop any train travelling towards signal box B on any other line, and or stop any train on the opposite line, if you consider this to be necessary. \newline % Row Count 8 (+ 8)
If possible, alter the position of points to divert trains and prevent collisions. Place or keep signals at danger against the train or vehicle and any other trains that could be put in danger. Arrange for the line on which the train or vehicle is proceeding without authority to be cleared. You should also lower all level crossings and take any other possible action to reduce the risk of a collision.% Row Count 17 (+ 9)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Recieving - Immediate Actions}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{If you have received train proceeding without authority in the right direction from signal box A, you must place or keep the block indicator at train on line for that line, and stop any train proceeding towards signal box A. If it is possible, alter the position of points to divert trains and prevent collisions, and place or keep signals at danger against the train or vehicle and any other trains that could be put in danger. Try to arrange for the line on which the train or vehicle is proceeding without authority to be cleared. If necessary, send train proceeding without authority in the right direction to signal box C, unless you can divert the train or vehicle. Ensure to lower all affected level crossings and take any other possible action to reduce the risk of a collision. \newline % Row Count 16 (+ 16)
Once the train has stopped, only then you must then acknowledge train proceeding without authority in the right direction. Staff members should be called, or the train should be respawned if it derails - whichever is necessary. \newline % Row Count 21 (+ 5)
The same instructions apply in the wrong direction, but you must send train proceeding without authority in the wrong direction instead.% Row Count 24 (+ 3)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}