The International Simutrans Forum

Simutrans Extended => Simutrans-Extended bug reports => Simutrans-Extended development => Simutrans-Extended closed bug reports => Topic started by: wlindley on September 14, 2013, 04:09:55 PM

Title: Choose signs: vehicles get stuck for no reason?
Post by: wlindley on September 14, 2013, 04:09:55 PM
Any clue why all the wagons are "waiting for clearance" when there is nothing in front of them, at the choose signs at Cornigham Fishing Dock and also at Corningham Brewery Stop, in this game (http://www.wlindley.com/simutrans/20130819-a6.sve)? game and pack (pak128.Britain-Ex): both latest from git.

Changing the directions of the choose signals a few times, eventually releases all the vehicles, but then after a while they all get hung up again.
Title: Re: Choose signs: vehicles get stuck for no reason?
Post by: jamespetts on September 14, 2013, 04:55:14 PM
The description sounds like a bug - will have to investigate presently. Thank you for the report!
Title: Re: Choose signs: vehicles get stuck for no reason?
Post by: wlindley on September 14, 2013, 08:50:55 PM
Ah, it seems at least one of the routes took the wagons through an intermediate choose sign (old and hidden behind a building).  Once a wagon reaches the second choose sign, it seems to become confused and stuck.  Not so bad but a possible irritation/blocking-exploit for multiplayer.
Title: Re: Choose signs: vehicles get stuck for no reason?
Post by: jamespetts on September 14, 2013, 09:56:54 PM
Ahh, I see. Is this behaviour unique to Experimental, does anyone know?
Title: Re: Choose signs: vehicles get stuck for no reason?
Post by: pwhk on September 15, 2013, 02:44:18 PM
I think I also got this earlier today, but unfortunately I carelessly overwrote that file...

My roads arrangement is like this:


  C  R
CRXR
  BR
  R
R


Where C is cargo bay, B is road sign, X is road sign overlapped with a bus stop, and R is a main road. Everything except the bus stop belongs to public service, where the bus stop belongs to the only player (that's me :) )

It works normally in practically all times, but one day two trucks from both sides of main road were simply stuck in front of each of the road signs, while there is no convoys but goods in the cargo bays. Apparently this caused heavy congestion on the main road...

I have no idea why it happens. Maybe two convoys arrived at the signs at precisely the same time and don't know which one should go first??
Title: Re: Choose signs: vehicles get stuck for no reason?
Post by: jamespetts on September 26, 2013, 11:27:50 PM
Does anyone know whether this behaviour is unique to Experimental?
Title: Re: Choose signs: vehicles get stuck for no reason?
Post by: pwhk on September 27, 2013, 07:29:08 AM
In fact, I tried to create a save, just to found that it become normal when loading the file.
Title: Re: Choose signs: vehicles get stuck for no reason?
Post by: jamespetts on January 16, 2014, 12:10:00 PM
I should add that a bug that would cause vehicles to become stuck at choose signals in some instances was fixed in 11.15. Can anyone confirm whether this issue is now fixed or still recurs in 11.15?
Title: Re: Choose signs: vehicles get stuck for no reason?
Post by: jamespetts on January 20, 2014, 01:07:34 AM
Until I hear to the contrary, I shall assume that this has now been fixed.