[OSM-talk] Zero tolerance on imports

Julio Costa Zambelli julio.costa at openstreetmap.cl
Mon Feb 21 06:33:44 GMT 2011

On 20 February 2011 21:03, Felix Hartmann <extremecarver at gmail.com> wrote:

> Just show me some neighboring countries where the one with imports some
> time ago (minimum 1 year) are doing better than neighboring
> countries/regions where no imports took place.
Dear Felix,

Take a look at Argentina, Bolivia, Chile and Peru. As long as I know, the
Argentinians, Bolivians, and Peruvians haven't done any massive importation
processes, here in Chile we have done the aforementioned imports, including
all the suburban highways, from the dataset liberated by the Government a
couple of years ago (Late 2008).

Buenos Aires, Argentina (pop. ~13,300,000): http://osm.org/go/Mnx6Foy-
La Paz, Bolivia (pop. ~2,300,000): http://osm.org/go/NOrAkUe
Santiago, Chile (pop. ~6,000,000): http://osm.org/go/MaK0TCh--
Lima, Peru (pop. ~8,000,000): http://osm.org/go/NNZb1om--
Cordoba, Argentina (pop. ~1,300,000): http://osm.org/go/Mw0zkmc--
San Cruz de la Sierra, Bolivia (pop. ~1,800,000): http://osm.org/go/Nh5HGa1
Gran Valparaíso, Chile (pop. ~900,000): http://osm.org/go/MaMIW4o--
Arequipa, Peru (pop. ~750,000): http://osm.org/go/NOJMR7ao-
San Luis, Argentina (pop. ~153,000): http://osm.org/go/MwDmIDt
Sucre, Bolivia (pop. ~225,000): http://osm.org/go/NhLWxEgE-
Chillan, Chile (pop. ~170,000): http://osm.org/go/MOXe09B
Huancayo, Peru (pop. ~323,000): http://osm.org/go/NNzRJz5A-

It is difficult to compare cities in terms of size, since the population
numbers for the four countries are so different (40,000,000 people;
11,000,000 people; 17,000,000 people; and 30,000,000 people respectively),
and the same applies to their cities, but I have tried to put cities of
similar importance in each section. One thing is clear, until now, bigger
populations (at city or country level) do not necessarily mean better
mapping and/or coverage, at least in the southern half of South America.

In my opinion quality and coverage totally depend in a combination of
variables, including compromise of the current and future mappers, economic
elements (money/free_time/etc.), geographic elements (shape of the country,
distribution of highways, topography, etc.), climatic elements (snow, ice,
tropical or seasonal rains, the driest desert in the world, etc.),
_and_ public datasets availability.

Until now I have not taken into consideration for this comparison the
suburban highways (by far our biggest import process). But just take a look
into this area of southern Chile: http://osm.org/go/MOB8D1 and compare it
with any suburban area of the surrounding countries. This is, at least in
part, thanks to the massive import process that we did years ago, it was the
kick start for many towns and cities (at the beginning, in many places, we
only had the suburban highways around them and a blank space to fill and
connect), and not only for those towns and cities, but for the improvement
and completion of the same suburban highways (they didn't include any kind
of "elaborate" highway interchange with the mayor motorways, and we have
been investing time adding and perfecting those during these years).


Julio Costa Zambelli
OpenStreetMap Chile

julio.costa at openstreetmap.cl

Cel: +56(9)89981083
Postal: Casilla 9002, Correo 3, Viña del Mar, Chile
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