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Re: [sumo-user] Reduce length for allow attribute lane
Hello,
the proper solution is to split the edge because access permissions in SUMO cannot change within a lane.
If you perform the split in netedit (right-click, 'split edge here') then it should not affect the number of lanes.
If you only split the edges that are incoming to an intersection rather than both ('split edges in both directions') then there will be no turn-arounds.
Also, if you have some reason to split both edges then you can still delete the turn-around connections in netedit.
The equivalent effect can also be achieved with xml input of split definitions (all lanes after the split must be declared so that the lane number does not change).

regards,
Jakob

2018-06-29 13:16 GMT+02:00 Renan Pincemin via sumo-user <sumo-user@xxxxxxxxxxxxxxxxxxxxx>:
Hi everyone!

Is there a way to reduce the length for the "allow attribute" of a lane?

For instance, I have an edge with 3 lanes: the outermost one (the right most one if right-hand drive) is a bus lane. So it is defined like this for each edge: <lane index="0" allow="bus" />.

Problem is, regular vehicles (which cannot take the priority lane) cannot turn right because only the right lane lets you turn right.
In real life, bus lanes usually stop 50 to 100 metres before the intersection in order to let vehicles that want to turn right to fold back into the right lane.

So, if an edge is 200 metres long, is it possible to say that the "lane with index 0 only allows bus" for the first 150 metres only or something like 50 metres before the end "allows everyone"?

----
I've tried the "endOffset" option but it just reduces the length of the lane, regular vehicles won't be able to turn right anyway.
I've also tried the "split" option but it reduces the number of lanes so not really what I'm looking for.

The only solution that I've found so far is to cut the edge into 2 edges consisting of one long edge with the outermost lane out of 3 which is a bus lane and one smaller edge with all the lanes allowing all types of vehicles.
But vehicles can turn around between the intersection of the 2 edges (which is supposed to be one big edge so not really realistic) and it takes time to implement too.

Regards,
Renan.
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