Thanks for the guidance Jakob. That pages contain a lot of useful information. I'm experimenting now with the --railway.topology.repair and --railway.topology.all-bidi flags noted there.
In both cases, it appears to successfully convert single edges into bi-directional, adding turn-around connections and all the required prerequisites noted on the page. But the reversing-direction process still takes a long time. The train almost seems to turn itself inside-out in order to make a complete U-turn on the edge, at a less-than-0.1 m/s pace. A default 5-car train takes nearly 30 minutes to complete a reversal.
Can you clarify what the expected behavior should be in this case? Is this slow turn what you would expect to happen, or should the reversing process occur faster/instantaneously?
Thank you!
Date: Tue, 20 Nov 2018 21:12:46 +0100
From: Jakob Erdmann <
namdre.sumo@xxxxxxxxx>
To: Sumo project User discussions <
sumo-user@xxxxxxxxxxx>
Subject: Re: [sumo-user] Rail vehicles turning around on a
bi-
directional edge
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Please take a look at the updated description here:
http://sumo.dlr.de/wiki/Simulation/RailwaysIn particular
http://sumo.dlr.de/wiki/Simulation/Railways#Reversing_Directionregards,
Jakob
Am Di., 20. Nov. 2018 um 19:48 Uhr schrieb Linwood Hudson <
vtkougrr@xxxxxxxxx>:
> Hello,
>
> I am beginning to incorporate rail vehicles into my simulation using
>
bidirectional edges. For the most part things work fine. But I'm seeing an
> issue when trains reach the end of a
bi-
directional track (e.g. at a rail
> station hub or end of a rail line) and try to turn around to head back in
> the other direction. The train makes a slow, torturous turn at about
> 0.1m/s, taking nearly 10 minutes to complete a U-turn before continuing in
> the other direction.
>
> In some situations, the trains will "teleport turn" and automatically flip
> around in the other direction. Specifically, if I spawn them on the
> dead-end edge, they'll immediately flip around and head out. But if they
> reach a dead-end at the end of a route, they do the slow turn. I'd rather
> they always flip around, or even reverse out of the dead end. Anything but
> the 10-minute U-turn.
>
> Is there anything I can do to improve this behavior?
> Thank you!
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