Carfree cityA carfree city is a population center that relies primarily on public transport, walking, or cycling for transport within the urban area. Districts where motorized vehicles are prohibited are referred to as carfree zones. Carfree city models have gained traction in the second half of the 20th century due to issues with congestion and infrastructure, and proposed environmental and quality of life benefits.
Free imperial cityIn the Holy Roman Empire, the collective term free and imperial cities (Freie und Reichsstädte), briefly worded free imperial city (Freie Reichsstadt, urbs imperialis libera), was used from the fifteenth century to denote a self-ruling city that had a certain amount of autonomy and was represented in the Imperial Diet. An imperial city held the status of Imperial immediacy, and as such, was subordinate only to the Holy Roman Emperor, as opposed to a territorial city or town (Landstadt) which was subordinate to a territorial prince - be it an ecclesiastical lord (prince-bishop, prince-abbot) or a secular prince (duke (Herzog), margrave, count (Graf), etc.
