Autobahn A115

Autobahn A115
Country	DEU
Type	Autobahn
Route	A115
Length km	19
States	Berlin; Brandenburg
Established	1936

Autobahn A115 Autobahn A115 is a short but historically significant motorway corridor in Germany linking central Berlin with the southern approaches toward Dresden and the A10 Berliner Ring. It serves as a connector between urban Mitte and suburban districts including Zehlendorf and Wilmersdorf while interfacing with national transport nodes such as Berlin Schönefeld Airport (now Berlin Brandenburg Airport), regional rail hubs like Berlin Südkreuz, and major waterways including the Havel River. The route forms part of broader interwar, wartime, Cold War and post-reunification transport networks tied to projects by figures such as Hermann Göring and administrations including the Weimar Republic and the German Democratic Republic.

Route description

The motorway originates near Avus in the Grunewald area, passes through Steglitz-Zehlendorf, and proceeds southbound to join the A10 at the Nuthetal junction adjacent to Potsdam. Along its alignment the road intersects arterial routes such as the B1 and the B96a and provides access to the Berlin Stadtbahn corridor and freight terminals near Tempelhof. The corridor crosses suburban landscapes including Wannsee and runs parallel in sections to the historic Anhalter Bahn corridor, serving commuters to nodes like Berlin Hauptbahnhof and connecting to national long-distance corridors reaching Leipzig and Rostock.

History

The route traces origins to prewar prestige projects including Reichsautobahn initiatives of the 1930s and the engineering program of Hermann Göring, with construction phases influenced by Nazi Germany transport planning and events such as the 1936 Summer Olympics. During World War II the roadway and adjacent facilities experienced strategic use and damage tied to operations like Operation Barbarossa logistics and later Battle of Berlin disruptions. In the Cold War era the corridor lay along the border between West Berlin and the German Democratic Republic, impacting access arrangements overseen by treaties such as the Four-Power Agreement and involving sites like the Checkpoint Bravo crossing near Dreilinden. After German reunification large-scale refurbishment paralleled infrastructure investment programs associated with the Bundesverkehrsministerium and EU cohesion funding, aligning the route with standards applied on other sections of the Bundesautobahn network.

Junctions and exits

Key interchanges include links to the A10 Berliner Ring at the Nuthetal junction, connections with the B1 and the B96a, and access ramps serving districts such as Zehlendorf and Wilmersdorf. The motorway interfaces with nodes that serve regional rail lines including Berlin Südkreuz and tram/light rail interchanges near Schöneberg and Friedenau. Historically important checkpoints such as Dreilinden and nearby border facilities created special exit configurations influenced by international agreements like the Inner German border accords. Operational signage and kilometer markers follow standards promulgated by the Bundesanstalt für Straßenwesen and mirror interchange layouts seen at junctions on the A9 and A2.

Traffic and usage

Traffic volumes reflect a mixture of commuter, regional, and freight movements connecting Berlin with southern and western corridors toward Potsdam, Leipzig, and Dresden. Peak flows coincide with commuter peaks into Mitte and event-driven surges related to venues such as the Olympiastadion and cultural institutions like the Staatsoper Unter den Linden. Freight operators including major logistics companies serving the Port of Hamburg and regional distribution centers rely on the motorway to access the A10 ring and longer-distance routes to the Rhine-Ruhr. Traffic management measures have drawn on technologies trialed in projects with agencies like the Deutsche Bahn and research at the Technische Universität Berlin to optimize flow and incident response.

Infrastructure and engineering

Engineering works on the corridor include historic reinforced concrete sections dating to the Reichsautobahn era, later rehabilitations employing prestressed concrete and asphalt overlays to meet standards set by the Bundesanstalt für Straßenwesen. Structures such as overpasses near Wannsee and retaining works adjacent to the Havel River required coordination with environmental authorities including Naturschutzbund Deutschland for protected landscape areas. Recent projects upgraded noise barriers, drainage and bridge bearings in coordination with firms and institutions like the German Road and Transportation Research Association and contractors active on other autobahns such as HOCHTIEF.

Legal status and administration

Administrative responsibility is shared between federal and state authorities, with the Bundesministerium für Verkehr und digitale Infrastruktur retaining oversight within the framework of the federal trunk road system and coordination with the states of Berlin and Brandenburg. Legal frameworks influencing the route include federal road laws enforced by agencies such as the Autobahn GmbH des Bundes and planning statutes governed under regional planning instruments like the Brandenburgischer Landesentwicklungsplan. Historic border arrangements were shaped by international agreements including the Four-Power Agreement and subsequent reunification treaties that adjusted jurisdiction and access rights.

Category:Autobahns in Germany