On Thu, Mar 20, 2025 at 04:15 AM, Dana wrote:
Brsidesa, you are trusting the operator to run at a very precise speerd. Probably impossible. Rspecially with track conditions and other issues.
Considering those issues, JMRI Warrants don't use train length but does provide for 'Automatic Speed Profiling'. Essentially calculating the time a train should take to traverse a block.
If you used the Roster Speed Profiling tool most likely you ran an engine running light over a straight level track. With Warrant dynamic speed profiling, measurements are made over straight level track, but also upgrade, down grade, curved gently or severely, running light or pulling 30+ cars. The track speeds are not going to be all the same for a given throttle setting. When merging, new values are averaged with the old, with the intention of a composite speed profile that reflects average use.
www.jmri.org/help/en/package/jmri/jmrit/logix/SpeedChanges.shtml
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