The Republic of Yemen has experienced steady development in the recent past and its Gross Domestic Product (GDP) per capita is approaching US$1,000. By many aspects, Yemen is unique. It is still a rural country (with more than 70 percent of the population living in the countryside). It has about...

Yemen should be credited for achieving an ambitious road building program over the last 25 years, and establishing a large primary road network given its level of Gross Domestic Product (GDP) and population size. With the condition of 60 percent of the paved network rated good or very good,...

In den 90er Jahren haben sich Erreichbarkeitsprobleme als Hindernis für die Revitalisierung der Innenstadt von Halle (Saale) erwiesen. Anhand der Befunde einer im Jahr 2004 durchgeführten Passantenbefragung (N = 1 492) wird überprüft, ob dies nach wie vor ein Hemmfaktor für die...

The UN General Assembly has designated the 1978–1988 period as a Decade of Transport in Africa to draw attention to the immense efforts that are—in an internationally coordinated fashion—still needed in this continent. What contribution to Africa’s social and economic development may be...