51°20′26″N 12°22′34″E / 51.3406°N 12.3761°E
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The Inner City Ring Road in Leipzig (also called Ring for short) in the district of Mitte is the ring road around Leipzig's city centre. It encloses the just 0.7 km2 (0.27 sq.mi.) large area[1] of the old town without the former Vorstadts.
The Leipzig inner city ring road almost completely traces the course of the former town fortifications, which were torn down after the Seven Years' War (1756-1763). Striking corner points within the town fortifications were the town gates. Since the beginning of the 18th century, the fortifications have been planted with avenues, which formed a ring of promenades (in German: Promenadenring),[2] some of which consisted of several rows, up until the middle of the century. The name was transferred to the later horticulturally designed areas, which to this day almost completely surround the city center within the ring road. The Promenadenring is the oldest municipal landscape park in Germany[3] and one of the most important garden and cultural heritage monuments in Leipzig. The expansion to the traffic ring road took place between 1904 and 1912.[4]
During the period of the Peaceful Revolution in 1989, the Monday demonstrations led from Augustusplatz to almost the entire Ring.
The total of the about 3.6 kilometers (2.24 mi.) long[5][6] ring road is now laid out as a four to six lane road with a continuous tram track body and consists of the following sections (starting clockwise at the main station):
| Section | Decision-making | Effective Date | Note |
|---|---|---|---|
| Willy-Brandt-Platz | 16 November 1993 | 18 December 1993 | |
| Georgiring | 1899 | ||
| Augustusplatz | 2 October 1990 | 3 October 1990 | |
| Wilhelm-Leuschner-Platz | 1 August 1945 | ||
| Martin-Luther-Ring | 3 November 1933 | 10 November 1933 | |
| Dittrichring | 3 November 1917 | 22 December 1917 | |
| Goerdelerring | 19 November 1991 | 1 January 1992 | only renaming of Friedrich-Engels-Platz into Goerdelerring |
| Tröndlinring | 20 June 1908 | 1 January 1909 | |
Depending on the section, the inner city ring road had a traffic volume of 26,000 to 50,000 vehicles/24 hours in 2015.[15] The inner city ring is the innermost ring in the ring system of the Leipzig road network (see figure Ring roads in Leipzig). The figure shows the so-called Tangentenviereck as a further ring, then the (unfinished) Mittlerer Ring (middle ring), highlighted in colour, and the Autobahn[16] on the very outside. Bundesstraße 6 (Willy-Brandt-Platz) and Bundesstraße 87 (Tröndlinring) run over the inner city ring road. The Bundesstraße 2 also ran over the inner city ring road before from the Berlin bridge in the north the connection via Rackwitzer Straße, the east and south side of the Tangentenviereck was passable. The degree of expansion of the inner city ring corresponds to this high traffic volume (72,800 vehicles / 24 hours at the Gerberstraße junction (Hallesches Tor), 30,700 vehicles / 24 hours at the Thomaskirchhof / Gottschedstraße junction).[17]
Since 1975, a minimum speed of 40 km/h (24,85 mph) was stipulated for the inner city ring by the StVO[18] sign 
"mandatory minimum speed". On 17 February 2011, the road traffic authority of the city of Leipzig lifted the order for a minimum speed, removed the signs and posted signs with the StVO sign 
"ban on cyclists". On 22 November 2012, a plaintiff filed an appeal against the ban on cycling on the carriageway on certain sections of the Inner City Ring Road (Promenadenring). He prevailed before the Saxon Higher Administrative Court.[19] The city of Leipzig is implementing the judgment in sections, accompanied by lively public discussions.[20] In 2022, green bike lanes were pigmented on several sections of the inner city ring road.
Together with other cities from Poland, the Czech Republic, Italy and Spain, the city of Leipzig took part in the EU project DEMO-EC (Development of sustainable Mobility Management in European Cities) from 2014 to 2020.[21] The contribution of the city of Leipzig was an investigation under the title "Enlargement of car reduced downtown in the inner city of Leipzig". The topic was approached in an interdisciplinary manner by urban, traffic and environmental planning. In the 2018/19 winter semester, students at the Bauhaus University in Weimar developed urban designs under the motto "Reinventing the Ring", which are documented.[22][23] On the one hand, there was a return to the previous history of the ring as a green promenade ring, on the other hand, a preview of expected future developments. The modal split in Leipzig is changing in the direction of a rapidly growing share of cycling. A strong increase in population is forecast for the Mitte district in particular (2015: 61,977 inhabitants, forecast for 2030: 82,549 inhabitants), which in turn means that an increase in traffic volume must be expected.