Dovedale Cheat Sheet (DRAFT) by P. Williams

- Where provided, you must test the bells and block indicators as long as no train has been signalled or is due to be signalled.
- Bell 16
- Move the block indicator to Line Clear > Train on Line > Normal
- Clear section signal and return to danger at Line Clear Position
- After this is done, do the same for the adjacent box, the adjacent box will acknow­ledge your 16 to complete the test.

ETB
- Bell 16
- Remove token and clear section signal
- Ensure the adjacent box does the same
- Adjacent box will acknow­ledge your 16

If you become aware of anything unusual or wrong with a train, or you receive stop and examine train (7), you must immedi­ately:

- Stop the train concerned
- Tell the signaller who controls the area from which the train approached what has happened
- Arrange for the train to be examined and dealt with as necessary

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.

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.

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.

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.

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.

You must also send obstru­ction danger when you see, or become aware of, a train approa­ching for which you have not:
- Acknow­ledged is line clear
- Received train entering section
- Received train or vehicles proceeding without authority in the right direction
- Acknow­ledged shunting into forward section.

When sending the obstru­ction danger bell code, you must:

Place or keep the block indicator to train on line until the obstru­ction has been removed
If necessary, place or keep your signals at danger to protect the obstru­ction
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.

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.

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.

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.

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.

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.

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.

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.

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.

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’.

- 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.

- 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.

- 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.

Before you give a release for a ground frame, you must reach a clear unders­tanding with the ground frame operator about:
-The movement to be made
- Whether or not the train is to be shunt in

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:
- Between the protecting signal for the running line and the points to be released
- 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

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.

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)

You may send this bell signal if the position of the block indicator is normal or at train on line. (Signal box A)

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)

When the train is ready to enter the section for shunting purposes and you have reached a clear unders­tanding with the driver, you must:
- Clear the signal if you can, or instruct the driver to pass the section signal at danger
- Send train entering section to signal box B. (Signal box A)

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)

When the movement is completed and the forward section is again clear, you must send shunt withdrawn to signal box B. (Signal box A)

You must acknow­ledge shunt withdrawn to signal box A and then take one of the following actions. (Signal box B)

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.

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

obstru­ction removed depending on the circum­stances and place the block indicator to normal.

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,

You must:

Send train passed without tail lamp (9) to signal box C
Not send train out of section to the signal box A, but instead send train passed without tail lamp (4-5)

Keep the block indicator at train on line.
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.

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.

If you receive train passed without tail lamp (9), you must stop the approa­ching train and find out if it is complete.

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.

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.

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.

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.

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.

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.

The same instru­ctions apply in the wrong direction, but you must send train proceeding without authority in the wrong direction instead.