[OSM-talk] Downloading Version 3 of all bus stops in a country

john whelan jwhelan0112 at gmail.com
Tue Sep 26 21:18:51 UTC 2017

Just a clarification, I'm not against imports and I have been involved in a
number as I'm sure Frederik will recall but it's important to me that the
data to be imported is of good quality, is correctly licensed and is merged
with existing data.  In the case of bus stops that means including tags
previously mapped such as shelter and wheelchair=yes and not just deleting
the old and dropping in the new.

Mappers who have spent time tagging deserve their efforts should be
recorded.  Although I sometimes have my doubts about a mapper who has
mapped once for half an hour and added a very inaccurate building tagged as
an apartment block in a small African village but in general it should be

Cheerio John

On 26 Sep 2017 5:08 pm, "john whelan" <jwhelan0112 at gmail.com> wrote:

> >We are well aware that GTFS accuracy is not perfect. (Though nobody Reported
> a 100-meter deviation so far). A potential solution, which could also
> work globally, is discussed below.
> Some University researchers who were looking at the GTFS files noted the
> problem sometime ago in the US.  One provider was a couple of hundred
> metres out on bus stop location.  Locally they were a little better but it
> was only when the bus announcement system came in and they very very
> carefully measured the location of each bus stop to comply with the
> provincial instructions that the GTFS file became at all usable and even
> then it took a dedicated team to do it and it wasn't a straight import.
> Personally unless you can confirm the accuracy of the bus stops my feeling
> is no data is better than poor data that cannot be trusted.
> Please do not do this globally.
> Cheerio John
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