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My goal is to generate bus route stop by stop given the bus route and stops with sequence number of single direction.

I tried to achieve this by using shortest path in QGIS stop by stop.

Bus route stop by stop

However, the raw bus route is for both direction, and the some of the stops are located at the opposite side by mistakes:

wrong side stops

As a result, the shape from shortest path would go all the way back to nearest point where both direction routes meet and then to the destination stop:

not so shortest path

Since there are around a thousand routes need to be processed, it is impossible to correct them manually.
Is there a way to tell the algorithm to take real shortest path?

You can find the example files here

enter image description here

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