I used to depend on a ferry for my commute[1] so the topic connects with me as 
well.

Looking at how this is currently mapped, I see some shortcomings we might want 
to address:
* The duration is mostly mapped on the way, rather than the route=ferry 
relation. Often the route is more than one way, wouldn’t it make more sense to 
map duration as a tag on the relation?
* The duration can be different depending on time of day / direction. 
Accounting for that may make the tagging unwieldy so I’m inclined to not deal 
with that, but what are your thoughts?
* Would it make sense to map hours / days of operation using the opening_hours 
schema as well?

Martijn

[1] This was back in Amsterdam. There is a tunnel for motorized traffic to the 
city, but the only option for cyclists and pedestrians (>50% of all commutes!) 
is a ferry. It runs very frequently and the crossing is short, but to optimize 
my commute I created a mobile web site that counted down to the next departure, 
so I could quickly look up the time to the next departure so I knew whether to 
pedal a little faster or slower. Defunct now but here is the blog post for 
historical reference 
https://oegeo.wordpress.com/2010/11/26/public-transit-schedule-encoding/ 
<https://oegeo.wordpress.com/2010/11/26/public-transit-schedule-encoding/> 

> On Jul 12, 2017, at 1:24 PM, Nick Peihl <nick.pe...@gmail.com> wrote:
> 
> Hi Martijn,
> 
> As a resident of a ferry-served island in WA, I fully support adding this job 
> to MapRoulette. Thanks!
> 
> Nick
> 
> On Wed, Jul 12, 2017 at 11:57 AM, <m...@rtijn.org <mailto:m...@rtijn.org>> 
> wrote:
> Hi all,
> 
> Just to let you know, my map team colleagues have been adding a few 
> `duration` tags to ferry routes in BC yesterday. Since this was already 
> established practice, I am only mentioning it now. I am crossposting to 
> talk-us because I wanted to see if folks there have given any thought to 
> ferry duration tagging? The documented practice is to add duration=hh:mm to 
> the way that makes up the ferry route. If you think this is fun to map I 
> could add ferry routes without duration to MapRoulette.
> 
> Here is the current state of duration tags in BC: 
> http://overpass-turbo.eu/s/qlE <http://overpass-turbo.eu/s/qlE>
> 
> Martijn
> 
> 
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