Re: [Talk-transit] [Tagging] Bus routes forward/backward
Yes, that describes version 2. It's the currently used version, so version 1 route relations should be converted to several version 2 route relations, one for each variant of the line.
There are a few things I don't agree with on that wiki page, like including all the stop_positions to each and every route relation. I prefer to keep things simple and only add all the platform nodes in the correct order to the route relations. (This doesn't work in places where the details for the stops are being added to the stop_position nodes).
Relating stop_positions to platforms (and shelters, waste_baskets, benches) is better done using stop_area relations. But there too, my preference is to create one such stop_area relation per direction of travel. If it's not done that way, those stop_area relations don't fulfill the purpose I have for them, which is to relate platform nodes to corresponding ways via the stop_position nodes.
Since life is too short, we need a scheme that is as simple as possible and we need automation. I'm taking care of the second part. Of course, we make sure that it works with whatever scheme people want to use. It's mostly designed to fix problems with routing, making sure they are continuous, don't travel against one way traffic or over unsuitable highways/railways.