Cameroon's central location in the network means that efforts to close the gaps which exist in the network across Central Africa rely on the Cameroon's participation in maintaining the network, and the network has the potential to have a profound influence on Cameroon's regional trade. Except for the several relatively good toll roads which connect major cities (all of them one-lane) roads are poorly maintained and subject to inclement weather, since only 10% of the roadways are tarred. It is likely for instance that within a decade, a great deal of trade between West Africa and Southern Africa will be moving on the network through Yaoundé.