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| A40 (Bundesstraße 40) | |
|---|---|
| Country | Germany |
| Type | Bundesstraße |
| Route | 40 |
| Length km | 60 |
| Direction a | West |
| Terminus a | Dortmund |
| Direction b | East |
| Terminus b | Essen |
| States | North Rhine-Westphalia |
A40 (Bundesstraße 40) is a major arterial federal road in North Rhine-Westphalia, Germany, running across the southern Ruhr area and linking urban centres in the Rhine-Ruhr metropolitan region. It serves as a commuter and freight corridor connecting districts of Dortmund, Essen, Bochum, Mülheim an der Ruhr, and Duisburg, and intersects with regional motorways such as the Autobahn A2, Autobahn A3, and Autobahn A42. The road follows historic industrial alignments established during the 19th- and 20th-century expansion of Ruhrgebiet infrastructure.
The route begins in western Dortmund near the district of Hörde and proceeds westward through suburban and post-industrial zones toward Bochum and Essen. Along its course it passes near major landmarks and institutions including Ruhr-Universität Bochum, Zeche Zollverein, ThyssenKrupp, DASA, and the University Hospital Essen. The A40 crosses the Ruhr and follows corridors adjacent to former coal mines such as Zeche Hannover and steelworks associated with Rheinpreußische and Friedrich Krupp. It intersects with trunk roads serving Dortmund Hauptbahnhof, Bochum Hauptbahnhof, and Essen Hauptbahnhof and provides connections to ports on the Rhine via links toward Duisburg Inner Harbour and the Port of Duisburg-Ruhrorter Hafen.
The corridor originated in local 19th-century carriageways serving coalfields developed by companies like Gelsenkirchener Bergwerks-AG and Hoesch AG. During the Weimar Republic and the era of the German Reich, expansion projects upgraded sections to carry industrial traffic to steel plants operated by Krupp and Thyssen. Post-World War II reconstruction under the Allied occupation of Germany and the Wirtschaftswunder accelerated modernization with state investments influenced by federal transport policies under ministers such as Ludwig Erhard and Konrad Adenauer. In the 1960s and 1970s, the road was reclassified and expanded amid large-scale urban planning initiatives championed in Duisburg, Gelsenkirchen, and Mülheim an der Ruhr. Deindustrialisation in the late 20th century prompted redesigns integrating sections into urban renewal projects tied to institutions like Essen Kulturstadt and international events such as Expo 2000 and regional cultural programs.
As part of the Ruhrgebiet transport network, the A40 handles high volumes of commuter traffic linking employment centres including Dortmund-Ems-Kanal terminals, corporate headquarters like RAG AG, research centres such as Fraunhofer Society, and logistics hubs near Duisport. It interfaces with public transport systems operated by entities like VRR (Verkehrsverbund Rhein-Ruhr), regional rail services run by Deutsche Bahn, and light rail networks such as the Bochum Stadtbahn. Peak-hour congestion has been compared to other European arterials serving metropolitan agglomerations like Greater London and Île-de-France, prompting traffic management measures employed in cities like Amsterdam and Rotterdam. Freight movements on the A40 are coordinated with inland waterways serving ports at Duisburg-Ruhrorter Hafen and Dortmund Port, and with national freight corridors connected to Autobahn A1 and A3.
The A40 includes engineered sections such as elevated viaducts over industrial valleys, cut-and-cover urban tunnels adjacent to heritage sites like Zeche Zollverein, and noise-abatement constructions reminiscent of projects in Hamburg and Stuttgart. Notable engineering works along the route include major interchanges connecting to the A2 and A42, complex ramps near Essen West and the multi-level junctions designed in coordination with municipal planners from Bochum and Dortmund. Bridges over the Ruhr and steel-reinforced overpasses near former blast furnaces required remediation analogous to regeneration schemes at Phoenix-See and the adaptive reuse of industrial architecture promoted by UNESCO-listed sites such as Zeche Zollverein.
The road has been central to the economic integration of the southern Ruhr, supporting industries historically dominated by firms like Krupp and ThyssenKrupp Steel Europe and later enabling logistics operators such as DB Cargo and Hapag-Lloyd to serve inland terminals. It has influenced residential patterns in suburbs such as Kray, Wattenscheid, and Essen-Kettwig, affecting commuting times to employment centres like Dortmund Innenstadt and cultural institutions including Museum Folkwang and Ruhr Museum. Urban regeneration projects along the A40 corridor have attracted cultural festivals and events associated with organizations like Ruhr2010 and investment initiatives backed by entities such as the European Union regional funds and the State of North Rhine-Westphalia.
Planned upgrades focus on congestion mitigation, emissions reduction, and multimodal integration, reflecting policy trends seen in European Green Deal discussions and initiatives in Germany such as national climate targets promoted by ministries including the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection. Proposals include rehabilitation of pavement, expansion of intermodal terminals linking to Duisburg-Ruhrorter Hafen, installation of intelligent transport systems comparable to deployments in Copenhagen and Vienna, and urban redesign projects to improve air quality near schools and hospitals like Universitätsklinikum Essen. Regional authorities including the Minister-President of North Rhine-Westphalia and municipal governments in Dortmund, Bochum, and Essen continue negotiation on funding from sources such as European Regional Development Fund and federal transport programs.
Category:Roads in North Rhine-Westphalia