Roads and development

Quote of the evening from Geoffrey York contrasting Congo and Rwanda:

When you cross the border from Congo to Rwanda, suddenly the roads are a dream. You discover a series of beautifully paved, smooth highways, whisking motorists all the way from the Congo border to the capital, Kigali.
Roads and other infrastructure projects have been a top priority for Rwanda’s government in recent years. This is a government with relentless attention to detail. Kigali is a spotlessly clean city, considered a model for Africa.
Is it any coincidence that Rwanda’s economy has been one of the fastest-growing in Africa, while Congo continues to be one of the poorest in Africa? Without good roads, a country is doomed to stagnation