from https://www.cia.gov/library/publications/the-world-factbook/geos/be.html

total: 154,012 km
paved: 120,514 km (includes 1,756 km of expressways)
unpaved: 33,498 km (2010)

Mapbox:  111,684 km


https://www.cia.gov/library/publications/the-world-factbook/geos/nl.html
total: 138,641 km (includes 3,530 km of expressways) (2014)

- no mention of unpaved roads there


It might be the unpaved part, should be investigated further for other
countries.

m

On Fri, Nov 20, 2015 at 9:51 AM, Marc Gemis <marc.ge...@gmail.com> wrote:
> 100% in Germany, The Netherlands, Luxembourg as well. Wonder why the
> CIA thinks there are so many hidden roads in Belgium :-)
> Or (more seriously) why the definition of road would be different for
> Belgium compare to the other countries.
>
> I cannot tell for Bolivia, but the Belgian roads are similar to other
> Western European countries, so I would expect the CIA to use the same
> definition there.
>
> On the blog that was mentioned, you find a twitter address to contact
> the Mapbox people. Maybe they can help ?
>
> regards
>
> m
>
>
> On Fri, Nov 20, 2015 at 9:30 AM, joost schouppe
> <joost.schou...@gmail.com> wrote:
>> I think in the CIA's imagination :)
>>
>> Huge differences like that, I'm afraid it says more about the differences of
>> the definition of what consists of a motor road. For instance, I know the
>> road network in OSM Bolivia to be far from complete as to smaller motor
>> roads, but it's way over 100% of the CIA number. So they probably only took
>> the main road network as a measure. Meanwhile, OSM is mapping roads that no
>> other map has ever mapped :)
>>
>> 2015-11-20 9:00 GMT+01:00 eMerzh <merz...@gmail.com>:
>>>
>>> Interesting.... thanks for the link ....
>>>
>>> but it seems surprising no?
>>> France is at 100% and us at 73? ... it's kind of low no? any idea where
>>> those road are?
>>>
>>> 2015-11-20 6:52 GMT+01:00 Marc Gemis <marc.ge...@gmail.com>:
>>>>
>>>> Mapbox made a tool [1] to see how complete the road networks in a
>>>> country are. Belgium got a 73%
>>>> They blogged about it in [2]
>>>>
>>>>
>>>> regards
>>>>
>>>>
>>>> m
>>>>
>>>>
>>>> [1] https://www.mapbox.com/data-platform/country/#belgium
>>>> [2] https://www.mapbox.com/blog/how-complete-is-openstreetmap/
>>>>
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>>
>>
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