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Re: [sumo-user] changing lanes while turning and merging at the last minute
Thanks, Jakob! I guess it's time to give the manual a thorough reading.

Best regards,
Albert

On Thu, Oct 3, 2019 at 2:52 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:
Yes. Double connection can be created with ctrl+click in netedit: https://sumo.dlr.de/docs/NETEDIT.html#changing_connections



Am Do., 3. Okt. 2019 um 23:34 Uhr schrieb Albert Jeans <ajeans2@xxxxxxxxx>:
Hi Jakob,

Thanks as always for your prompt reply. I'm still a new user of SUMO so I'm afraid I don't understand the construction shown in
https://sumo.dlr.de/docs/Simulation/Motorways.html#combined_on-off-ramps
Is it two edges on the left, joined to one edge with 3 lanes in the middle, then joined to two edges on the right? If the off-ramp is a separate edge, NetEdit  doesn't allow lanes 0 and 1 of the middle edge to both target it. (On the other hand single lanes are allowed to target multiple lanes belonging to a single edge.) Any tips you could provide would be much appreciated.

Thank you,
Albert Jeans

On Thu, Oct 3, 2019 at 11:22 AM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:
1) This sounds as if those vehicles prefer a particular lane for strategic reasons (to avoid mandatory lane-change later during their route)
2) vehicles in sumo also try to get into the correct lane as soon as possible. On short weaving sections they may not always manage to do so. You can fix this with the network modification described here: https://sumo.dlr.de/docs/Simulation/Motorways.html#combined_on-off-ramps

regards,
Jakob

Am Do., 3. Okt. 2019 um 08:20 Uhr schrieb Albert Jeans <ajeans2@xxxxxxxxx>:
Hi,

I have one lane making a turn into either of two lanes. However, when one of the two destination lanes is filled with vehicles, the turning vehicle does not always turn into the unoccupied lane but instead waits for the full lane to clear. Does that mean vehicles cannot change lanes once they've reached a junction?

In the opposite situation, I have two single lanes merging together to form a single two lane road which later splits again (left and right). In real life,  drivers try to get into their proper lane as soon as possible rather than go further down the road and try an cut into the queue. SUMO often does the latter, and when that's difficult, that vehicle blocks traffic behind it, or even ends up in the wrong lane and gets stuck.

Can either of these two lane changing behaviors be modified by changing some parameters?

Thanks,
Albert Jeans
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