I have recently come across vector road data from the Africa Infrastructure Knowledge Program (http://www.infrastructureafrica.org/documents/list/roads). I found these data helpful for three reasons:
1) They are freely available
2) They cover most sub-saharan countries
3) Information on road surface (e.g. paved/unpaved, asphalt/gravel/earth) is available for all surveyed countries
Do these data have serious limitations, I should be aware of? And if yes, could you recommend better data, which allow a comprehensive assessment of paved roads in Africa?
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1) They are freely available
2) They cover most sub-saharan countries
3) Information on road surface (e.g. paved/unpaved, asphalt/gravel/earth) is available for all surveyed countries
Do these data have serious limitations, I should be aware of? And if yes, could you recommend better data, which allow a comprehensive assessment of paved roads in Africa?
أكثر...