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...

Im Mittelpunkt der Untersuchung stehen die Voraussetzungen, Inhalte und Folgen von Umweltinnovationen in der kommunaler Verkehrspolitik. Ausgehend von der Beobachtung, daß eine grundlegende „Ökologisierung“ städtischer Verkehrspolitik in den meisten europäischen Städten bislang nicht...

Transport is characterised by market failures that are of particular importance in urban settings. This paper reviews market failures and policy failures in The Netherlands for various transport markets, including road transport, public transport and biking. Special attention is paid to parking...