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| A39 (Germany) | |
|---|---|
| Country | DEU |
| Route | 39 |
| Length km | 57 |
| States | Lower Saxony |
A39 (Germany) is an Autobahn in Germany linking the ports and industrial areas of Wolfsburg, Salzgitter and Braunschweig with the North Sea access corridor toward Cuxhaven and the regional network around Hanover. The route serves as a regional freight axis connecting automotive, steel, and logistics centres including Volkswagen facilities and the Salzgitter AG complex, while also facilitating commuter flows between urban areas and suburban municipalities such as Gifhorn and Brokdorf.
The Autobahn begins near the interchange with the A7 at the Salzgitter/Bispingen region and runs northward past industrial nodes at Salzgitter and Goslar before reaching the metropolitan periphery of Braunschweig. It provides direct links to the Wolfsburg urban area, with junctions serving the Volkswagen Wolfsburg Plant and the Autostadt complex, and continues to meet regional roads feeding into the Lüneburg Heath and port approaches toward Cuxhaven. Major interchanges include connections with the A2 near Braunschweig and with the B6 and B248 corridors, interlinking with rail hubs such as the Braunschweig Hauptbahnhof and industrial sidings serving Salzgitter AG yards.
Plans for an axial motorway in this corridor date to the postwar reconstruction era when federal transport strategies aimed to reconnect the British Zone economic centres. Early routing proposals appeared alongside the development of the Mittelland Canal and the reconstruction of the Wolfsburg automotive cluster in the 1950s and 1960s. Construction phases were influenced by the economic boom associated with Volkswagen and steel production at Salzgitter AG, while Cold War strategic considerations connecting northern ports with inland logistics nodes shaped alignment choices. Legislative acts by the Bundesrepublik Deutschland and funding decisions through regional ministries in Lower Saxony determined staged completion during the late 20th century.
Initial construction utilized contemporary standards from the Bundesautobahn network, incorporating grade-separated junctions and dual carriageways to accommodate heavy freight traffic serving the Mittellandkanal terminals. Major upgrades have included pavement rehabilitation funded via federal transport budgets and noise-abatement works adjacent to urban quarters in Wolfsburg and Braunschweig. Bridge refurbishments were coordinated with structural assessments aligned to standards promoted by the Deutsche Forschungsgemeinschaft and engineering guidance referenced from the Bundesanstalt für Straßenwesen. Widening projects and interchange reconfigurations near the A2 junction incorporated traffic modelling influenced by studies conducted at Technische Universität Braunschweig and Leibniz University Hannover.
Key junctions include the interchange with the A2 providing east–west connections toward Berlin and Ruhrgebiet, the connector to the A7 axis toward Hamburg and Kassel, and several exits serving industrial estates such as the Wolfsburg-West and Salzgitter-Lebenstedt zones. Local access points link to federal highways like the B6, B4 and B248, and municipal roads feeding towns such as Gifhorn, Helmstedt and Peine. Exit numbering follows national conventions implemented by the Bundesministerium für Verkehr und digitale Infrastruktur, and signage conforms to standards produced by the Deutsches Institut für Normung.
Traffic composition is a mix of heavy goods vehicles serving the Volkswagen supply chain and port transits to Cuxhaven and regional passenger traffic commuting between Wolfsburg, Braunschweig and satellite towns. Peak daily flows correlate with shift changes at major employers like Volkswagen and Salzgitter AG, and seasonal variations are observed during holiday movements toward the Lüneburg Heath and North Sea coasts. Traffic monitoring and incident management rely on coordination with the Autobahnmeisterei and regional police forces including the Polizei Niedersachsen. Freight logistics actors such as the DB Cargo network and private haulage firms contribute to modal integration challenges at terminals and intermodal yards.
Environmental assessments undertaken for expansions considered impacts on habitats associated with the Leinemasch wetlands and remnants of the Lüneburg Heath ecosystem, with mitigation measures coordinated with agencies like the Niedersachsen Ministry of Environment and conservation groups including the NABU. Noise barriers, wildlife crossings and runoff treatment systems were implemented following environmental impact appraisal procedures set by the Umweltbundesamt and regional planning directives. Air quality monitoring near urban stretches interfaces with public health studies from institutions such as the Hannover Medical School and municipal environmental departments in Wolfsburg and Braunschweig.
Proposals under consideration encompass further capacity enhancements, interchange improvements to better serve the Autostadt logistics park and potential extensions to improve direct access toward Cuxhaven port infrastructure. Strategic documents from the Niedersachsen State Development Plan and federal transport frameworks propose prioritisation of intelligent transport systems, including variable speed limits and freight telematics coordinated with the Federal Network Agency and research partnerships at Technische Universität Braunschweig. Local councils and stakeholder forums involving IHK Braunschweig and port authorities continue to debate alignment options and funding mechanisms aimed at balancing regional development with environmental protections.
Category:Autobahns in Lower Saxony