[Tagging] direction=forward/backward on nodes ?

fly lowflight66 at googlemail.com
Sun Apr 13 13:09:55 UTC 2014


I have no problems using forward/backward on way but on nodes this does
not make sense and in my opinion we need to discourage the usage in
favour of cardinal coordinates either as number or as letters (West,
South southeast, NWW, S and so on).

fly

Am 12.04.2014 20:39, schrieb John Packer:
> I have never used this key before because of the drawback you mentioned:
> "There is no editor supporting this tag when reverting a way direction",
> but as far as I know, /direction=forward/backward/ is used with
> /highway=stop/ and /highway=give_way/ and maybe some other signs.
> 
> There are keys similar to /direction=forward/backward/; they
> are traffic_sign:forward/backward=
> <http://wiki.openstreetmap.org/wiki/Traffic_sign#As_part_of_a_way>yes
> <http://wiki.openstreetmap.org/wiki/Traffic_sign#As_part_of_a_way> and
> traffic_signals:direction=forward/backward
> <https://wiki.openstreetmap.org/wiki/Key:traffic_signals:direction>
> 
> 
> 2014-04-12 15:27 GMT-03:00 fly <lowflight66 at googlemail.com
> <mailto:lowflight66 at googlemail.com>>:
> 
>     Please, tell me for what kind of keys is the paragraph about
>     forward/backward useful. There are no examples and it is only about
>     nodes.
> 
>     Thanks
>     fly
> 
>     Am 12.04.2014 20:00, schrieb John Packer:
>     > Do note that when used on benches, /forward/ and /backward/ are not
>     > valid values (which is what we are talking about).
>     > /amenity=bench/ with a /direction=*/ key use angles and cardinal
>     > directions as values.
>     >
>     >
>     > 2014-04-12 14:46 GMT-03:00 fly <lowflight66 at googlemail.com
>     <mailto:lowflight66 at googlemail.com>
>     > <mailto:lowflight66 at googlemail.com
>     <mailto:lowflight66 at googlemail.com>>>:
>     >
>     >     Sorry, forgot the link.
>     >
>     >     Yes, it does make sense and is useful for benches and
>     traffic_signals.
>     >
>     >     Am 12.04.2014 19:43, schrieb John F. Eldredge:
>     >     > Since a node is a point, and has no dimensions, a direction
>     tag is
>     >     meaningless.
>     >     >
>     >     >
>     >     > On April 12, 2014 12:20:26 PM CDT, fly
>     <lowflight66 at googlemail.com <mailto:lowflight66 at googlemail.com>
>     >     <mailto:lowflight66 at googlemail.com
>     <mailto:lowflight66 at googlemail.com>>> wrote:
>     >     >> Hey
>     >     >>
>     >     >> As I had much fun with the last subject (noexit), I just
>     can not hold
>     >     >> myself back to jump into another bee nest.
>     >     >>
>     >     >> I read on the wiki page [1], that
>     direction=forward/backward are
>     >     valid
>     >     >> values also for nodes.
>     >     >>
>     >     >> Could someone please explain me, how this can work.
>     >     >>
>     >     >> I only find some major reasons not to do that:
>     >     >> * You always have to look at the parent object to determine the
>     >     >> direction
>     >     >> * There is no editor supporting this tag when reverting a way
>     >     >> direction
>     >     >> * I am not allowed to split a way at this point which is
>     another
>     >     >> unneeded burn and once again you need special editor
>     support which is
>     >     >> not present.
>     >
>     >     [1] https://wiki.openstreetmap.org/wiki/Key:direction




More information about the Tagging mailing list