[Tagging] Driving side

Fernando Trebien fernando.trebien at gmail.com
Fri Mar 21 21:15:30 UTC 2014


No worries! :D

On Fri, Mar 21, 2014 at 6:13 PM, Colin Smale <colin.smale at xs4all.nl> wrote:
> Agreed, we map roads and attributes of those roads. Sorry, I thought you
> were suggesting a tag with the meaning "cars have their steering wheels on
> the left|right".
>
> Colin
>
>
>
> On 2014-03-21 22:06, Fernando Trebien wrote:
>
> We only map the roads because we have an interest in using them,
> right? Therefore, we also often map how vehicles are supposed to use
> these roads. See: access, oneway, maxspeed, surface, tracktype,
> smoothness, height, restriction, etc.
>
> On Fri, Mar 21, 2014 at 5:54 PM, Colin Smale <colin.smale at xs4all.nl> wrote:
>
> Sorry, bad idea. We map the roads, not the vehicles. It is not illegal to
> drive a car with the wheel on the "wrong" side - millions of Europeans do it
> regularly, both on holiday and because certain models of car are only made
> for certain markets. Let's stick to driving_side referring to the side of
> the road. By the way, when Samoa changed from driving on the right to
> driving on the left a couple of years ago, that was because most of the
> vehicles were imported second-hand from Australia and therefore had the
> steering wheel on the right anyway... Colin On 2014-03-21 21:24, Fernando
> Trebien wrote: I wonder what you mean by "Is there any interest of using it
> on countries?". It's been defined for countries, and is used on it, as you
> said. You could simply tag the country with "driving_side=right/left" and
> use the same (but with the opposite value) on those streets. That said, I
> think driving side also implies "driver side" inside the vehicle. Though I
> find it very unlikely to see this information in use one day, it's best to
> define this meaning early on. A change of driver side requires either a
> change of vehicle or some special vehicle that can drive on both sides. In
> the case of your city, driving side changes, but driver side doesn't. You
> could include that in the description of "opposite". One more thing: this
> only makes sense if there is no physical barrier between the opposite
> traffic directions. If there is, then it's just a separate way with no
> special change in driving side. On Fri, Mar 21, 2014 at 5:19 PM, Fernando
> Trebien <fernando.trebien at gmail.com> wrote: On Fri, Mar 21, 2014 at 5:07 PM,
> John Packer <john.packer7 at gmail.com> wrote: There is a tag documented on the
> wiki called driving_side=right/left. According to it's description, this tag
> should only be used on countries, and it describes the side of the traffic
> in the whole country. So far so good, but according to taginfo it is used
> only once on a relation, however there are some uses on some ways, and even
> nodes(?). There are, in my city, a couple of streets that have an inverted
> driving side. So I am going to extend this tag's documentation to include
> ways that have it's driving side opposite to it's country's normal driving
> side. Is there any interest of using it on countries? If there is not, I
> will exclude the possibility of use on countries from this tag's
> documentation. Perhaps, with this new definition, this tag could be
> redefined to have only one value: driving_side=opposite (this way, it could
> avoid any confusion about it's use) What do you think?
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-- 
Fernando Trebien
+55 (51) 9962-5409

"The speed of computer chips doubles every 18 months." (Moore's law)
"The speed of software halves every 18 months." (Gates' law)



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