Selecting running days options

Would it be possible to implement a date selector in the timetable editor, maybe linked with options for the user to choose a day or the day selected at random?

More an option for freight, for passenger it would be 'Run All Days' or something, but for 4 different timing paths for one freight train, because on Monday it enters at 01.10, Tuesday it enters at 01.26, Wednesday enters at 01.45 and Thursday runs as required entering at 01.30.

Rather than trying to tie those all up with rules, it might make it easier for the user to select in the timetable editor the day of the week, or a checkbox system to select a day like Monday and Thursday.

Then if the player at the start of the sim chooses Monday, everything related to Monday will run. Or could just me permanently random.

I am trying to add freight trains to one of my 2012 TT's, but I'm frazzled by the amount of different pathing times for different dates, alternative destinations and a vast majority all running as required, I can't begin to think how to work it all out by rules!

Having some standard naming convention for DotW decisions so they could optionally be pre-selected from the loader menu (if the timetable supports it) would be a nice idea, but I think it should be separately from scenarios, as choosing a day for the timetable shouldn't preclude you from combining it with e.g. one of the disruption scenarios (where available).

Firstly create your Day-of-the-Week decision.

1) When you open the TT, there is a tab marked Decisions.
2) Open the Decisions tab.
3) Click on the "New" button.
4) Give the decision a name (e.g. DotW).
5) Fill in the description if you want to remember what the decision is for.
6) Click on the "New" button beside the "Choices" block.
7) Give the choice a name (e.g MON).
8) Click OK.
9) Repeat 6 and 7 until you have created the 5 daily choices.
10) Click OK on the Decision window (the one with the name DotW in the name box at the top).

You have now created the decision which will randomly decide what day of the week will run.

For your TTHO train:

1) Open the train TT.
2) Go to the Train Details tab.
3) In the Decisions box on the top right enter DotW
4) In the Choice box enter either not MON|WED|FRI or any TUE|THU
5) Click OK

You now have things set up so there is a 2 in 5 chance that the train will enter. When the train is due, the core code reads the TT and finds that the entry is governed by a decision. It consults the Decision and makes a Choice if the Decision has not previously been called. That Choice is then locked into the sim and will apply to any other TT where the DotW Decision has been entered into the box on the Train Details Tab of a TT. If the Choice picked is TUE or THU the train will enter. If MON, WED or FRI is picked the train will not enter.

After you have done all of that the other stuff in my previous post about fixing a day of the week etc. may start to make more sense.

Decisions as a process looks very complicated at the start but they are one of the easiest timetabling tools to use; they are far less complex and much more flexible than trying to set things up using "must not run" and "are mutually exclusive" rules. You can also apply them to actions in a train TT. For example, suppose a train drops a light engine which goes off to the depot on Monday but which runs round and works the train back on the other days, in the TT for the train you have three activities, one to drop the Monday light engine, and two to drop and re-join the run-round loco. In that case the Add Activity window in the Train TT for the Monday light-engine would be say DEF 0A00 with a Decision DotW and a Choice MON. The other two activities for the run round loco would have Decision DotW and Choice not MON.

Come back again if you are still having problems.