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| Trains departing late for no apparent reason... 19/09/2012 at 05:07 #35705 | |
John
884 posts |
...despite arriving on time, or even early, and with lateness switched off. Have noticed this on a few sims, but uncertain whether a timetable or sim issue. For example ecs from Hove Yard reversing at Preston Park arrives at PP on time, but departs late. Ecs reversing in Haringay siding arriving on time but departing late. Ecs arriving at Bowes Park on time, but departing late, etc. Anyone know why this happens? Log in to reply |
| Trains departing late for no apparent reason... 19/09/2012 at 05:37 #35706 | |
Peter Bennet
5362 posts |
Could it be that the timetable is written for a faster turnaround than the Sim core will allow. I can't recall what the default is, which may also be a function of the train length. Peter I identify as half man half biscuit - crumbs! Log in to reply |
| Trains departing late for no apparent reason... 19/09/2012 at 08:58 #35708 | |
postal
5190 posts |
If I remember correctly from previous discussions on the old Forum, there are two parts to the answer for this. Firstly there is a minimum turn round time set into the core code which Peter notes. It is not an absolute figure as it consists of 2 parts. There is a fixed time element which reflects the time a driver would take to shut things down in one cab, get out and check that the correct external lights are displayed and then the time at the other end to set up the cab and check the external lights. The second part is the time taken to walk from one end of the train to the other so the turn round time varies depending on the length of the train. Really this time is only relevant to drivers changing from one end of a fixed-consist train to the other. It gives an excessive turn-round time where there is a movement like Up trains reversing out of Kingsbury on the Saltley sim. In these cases the driver reverses out with his loco at the "rear" of the shunt so when he hits the main line he is ready to go without any need for the walk from one end to the other. This may be a possible cause of the Preston Park and Haringey problems. The second part was discussed in regard to the Euston sim and I can't remember whether it affects all sims or just that one. In that case the sim was picking up the due departure time and then adding on the time taken to walk from one end to the other before giving TRTS so a lot of trains were leaving 1 or 2 minutes late (the longer the train, the later). “In life, there is always someone out there, who won’t like you, for whatever reason, don’t let the insecurities in their lives affect yours.” – Rashida Rowe Log in to reply |
| Trains departing late for no apparent reason... 19/09/2012 at 09:53 #35710 | |
jc92
3630 posts |
" said:this is an issue on a number of sims, trains reversing at gloucester always depart 2 mins down, as do trains reversing temple meads. there are a few more that i cannot remember, but most have been reported as bugs edit: i have tested johns issue at preston park. i booked a train in at 00:06 and out at 00:15, giving plenty of turnaround time. watching F2, the train, although arriving on time, did not report waiting for right away until 00:15H and therefore departed on a clock time of 00:16. i would put this down to the sim issue i have explained above. Joe "We don't stop camborne wednesdays" Last edited: 19/09/2012 at 10:01 by jc92 Log in to reply |
| Trains departing late for no apparent reason... 19/09/2012 at 11:52 #35713 | |
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Peter Bennet
5362 posts |
" said:" said:There is an open report on the Bug board covering this sibject in part.this is an issue on a number of sims, trains reversing at gloucester always depart 2 mins down, as do trains reversing temple meads. there are a few more that i cannot remember, but most have been reported as bugs Juxtaposing the Sim references you make indicates that something has been tweaked at some point between the various releases. Though it appears there maybe something worth checking if there is still a delay of 30secs. I'm not clear if by 00:16 you are referring to a round-up or another 30 second delay after RA given. Peter I identify as half man half biscuit - crumbs! Log in to reply |
| Trains departing late for no apparent reason... 19/09/2012 at 12:04 #35714 | |
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jc92
3630 posts |
i only pulled off when it showed waiting RA (PP has no TRTS for the signal in question). so by the time i had done that and the train reacted, it was 00:16
"We don't stop camborne wednesdays" Log in to reply |
| Trains departing late for no apparent reason... 19/09/2012 at 13:02 #35715 | |
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Peter Bennet
5362 posts |
" said:i only pulled off when it showed waiting RA (PP has no TRTS for the signal in question). so by the time i had done that and the train reacted, it was 00:16OK so the subsequent delay might just be the time for the driver to notice the signal has come off, eased off the brakes and applied the power. If a train is stopped at any signal does it move off the instant the signal is cleared (not sure myself)? I think the test you need to report on is what delay occurs if the signal is already off: does the train depart on time, 30s late or what? Peter I identify as half man half biscuit - crumbs! Log in to reply |
| Trains departing late for no apparent reason... 19/09/2012 at 15:27 #35718 | |
GeoffM
6287 posts |
FWIW the core code out for testing at the moment has the ability for a TT writer to override the minimum stop times, red signal restart times, join and divide times.
SimSig Boss Log in to reply |
| Trains departing late for no apparent reason... 19/09/2012 at 16:38 #35721 | |
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J5flyer
48 posts |
Hi, I've noticed this as well and I think I posted about it in another topic in the past. At certain locations on certain sims, when a train reverses it will always leave 2 minutes after the timetabled departure time, regardless of how much time is given for the turn around. I've noticed it on old sims like Southampton and Gloucester, as well as newer sims such as Brighton and Euston. It appears to wait until departure time, then the sim seems to add an extra 2 minutes ontop for whatever reason. To get round it at the 'troubled' locations (for lack of a better word), open the F4 list just after the train arrives/stops, then tell the driver to shunt forward. Doing this will not affect the score and I don't think it counts as a late arrival either if you are busy and do it some minutes after it arrives. Regards, James Log in to reply |