African cities are growing at an extraordinary rate. Unfortunately, many cities are growing so fast that national, provincial, and city governments cannot manage how they develop or assure the provision of the services people need. This has many negative consequences for national and city...

African cities are growing at an extraordinary rate. Unfortunately, many cities are growing so fast that national, provincial, and city governments cannot manage how they develop or assure the provision of the services people need. This has many negative consequences for national and city...

Dieses Discussion Paper thematisiert die Regelwerke der Forschungsgesellschaft für Straßen- und Verkehrswesen zur Verkehrsplanung deutscher Großstädte sowie ihren historischen Hintergrund. Anfangs werden geschichtliche Aspekte, wie die Motorisierung oder die zwei Weltkriege, und umgesetzte...

We propose a theory-inspired measure of the accessibility of a city's center: the size of the surrounding area from which it can be reached within a specific time. Using publicly-available optimal routing software, we compute these "accessibility zones" for the 109 largest American and European...

Major Ghanaian cities are at a critical point that will determine whether they become an engine of or a burden on the country's development. Ghana's urban areas contribute to more than two-thirds of the country's gross national product, and cities will continue to grow rapidly, especially those...