[talk-ph] bocaue / balintawak / toll gates + round abouts

[Eugene Alvin Villar]

Hi Ronny,

I think the Dau work you did is overkill.

While conceptually, each toll booth slot is a separate way, I don't think
the separation is long enough that they merit separate ways.

Also a correction, the barrier=toll_booth tag should be on nodes on the
highway=* way, not on the building=yes way and it should be an underscore,
not a space character.

I've only done two tollbooth mappings in OSM ever. The first one is the
Coastal Road toll plaza in Paranaque:
http://openstreetmap.org/?lat=14.48796&lon=120.98227&zoom=17&layers=B000FTF

It's basically just two ways in opposite directions following the outermost
lanes. But check out the data or T at H layer and you can see that I've added
two additional closed highway=* ways with area=yes to signify that there is
a considerable widening in the road (that can't be captured effectively by
just lanes=* tags). I'm not sure if what I did is acceptable but at least
it's still routable yet simple. The data still needs two barrier=toll_booth
nodes there. Note that this setup ignores the fact the the middle N lanes
can be configured to accommodate traffic in both directions so that the toll
plaza can adjust depending on traffic conditions.

The second I did is the SLEX Sucat exit:
http://openstreetmap.org/?lat=14.453638&lon=121.045358&zoom=18&layers=B000FTT

Here I haven't placed any building outlines.


As for roundabouts, unles there are islands that separate the way going into
the roundabout, topology dictates that the way should go straight into the
roundabout unsplit.


Eugene / seav


On Sun, Apr 12, 2009 at 12:06 AM, Ronny Ager-Wick - Develo Ltd. <
raw at develo.ltd.uk> wrote:

> I'm fixing some things on NLEX, but I'm not so familiar in this area
> (apart form driving past there numerous times).
> Is this the Bocaue toll barrier?
> http://www.openstreetmap.org/?lat=14.80428&lon=120.94194&zoom=16
> I'm assuming this is Balintawak toll barrier:
> http://www.openstreetmap.org/?lat=14.67846&lon=121.00214&zoom=15
>
> I was playing around a bit with the Dau Toll Barrier, but I'm beginning
> to think I might have made a bit too much of an effort here:
> http://www.openstreetmap.org/?lat=15.17075&lon=120.60918&zoom=16
>
> Is there any recommendation for how to deal with issues like this:
> - what do we call them (toll gates/barriers/booths)?
> - how to tag them so that GPS navigators will deal with them in a
> sensible way?
> - is it a goo idea to do like I did in Dau, extending the one way path
> tagged "lanes=2" into however many lanes there are in the toll gate, or
> is it better to keep it a single path and just tag it "lanes=n" instead,
> positioning the path approximately in the middle?
>
> The same goes for roundabouts. I've been quite accurate when making
> them, letting the roads leading in and out enter the roundabout the way
> the traffic normally flows (or is supposed to flow, if anybody were
> following the rules), splitting them in two tiny one-way streets to show
> the exact flow of the traffic in and out of the roundabout.
> Is this a waste of time?
> Should I rather just let the road go straight into the roundabout
> without splitting it?
> Examples:
> http://www.openstreetmap.org/?lat=15.152958&lon=120.592369&zoom=18
> http://www.openstreetmap.org/?lat=15.161103&lon=120.609488&zoom=18
> I'm trying to make the map usable for GPS navigation, but I'm not sure
> if this is the best way to achieve that.
> Any advice is appreciated.
>
> Ronny.
>
> _______________________________________________
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>



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