[Tagging] stop area hierarchy

[Michael Tsang]

On Tuesday 15 November 2016 19:50:14 Tijmen Stam wrote:
> 
> Whoa, that's quite different from how I interpret the stop_area. For
> example, for a "normal" bus stop, this would include 4 nodes (or 2 nodes
> and 2 ways): a platform and a stop_position for each direction.

In Hong Kong, we always consider bus stops in opposite directions different bus 
stops (including the information systems of bus companies). So, for a pair of 
bus stops for different directions, even they have the same name and share the 
same stop_position, I make 2 stop_areas, one for each direction, possibly 
sharing the stop_position. We seldom consider "crossing the road to change 
bus" to be the same as transferring at the same spot (原站轉車), as in the case of 
platforms immediately adjacent to the other on the same side of the road.

Though, in bus stations, we consider all platforms and stop_positions to be 
the same stop_area, even they are on different tracks (車坑), again, the same 
practice as bus companies.

Michael

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