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SWIS Thuringia   TFT Berlin   Autostrade Italy   Motorway A4 Stadtroda   Motorway A31 Emstunnel   Video monitoring Dharan   TTS Berlin   Tunnel René Konen   A2 Gotthard Tunnel   Motorway A1 Bremen   Traffic Data Duesseldorf   A7 Traffic situation Elbtunnel   Traffic Data Hesse   Ramp Metering NRW   A70 Tunnel Schwarzer Berg   Motorway A4 Dresden   A99 Munich Motorway Ring   Motorway A3 Wuerzburg   A10 Berlin Motorway Ring   A3 Cologne Motorway Ring			Motorway A31 "Emstunnel" Home > Projects > A31 Emstunnel Project Conception The motorway A31 runs from Emden in Lower-Saxony to Bottrop in North Rhine-Westphalia, connecting the remote region of Ostfriesland with the economic region of the Rhur valley. At the same time the motorway connects to the Euro-pean road 22 and is thus via A280 and A28 the extension of the Dutch A7 to the Bremen area. At Leer in Lower-Saxony the motorway A31 leads through the two tubes of the 945 m long Ems-tunnel. The tunnel was opened for traffic in 1989 and during the renovation in 2007 equipped with an extensive traffic control system. Installation Characteristics / Project Content Central software UZ2000 2 redundant tunnel sub-centre units 2 operating stations 14 detection cross-sections with inductive loops 9 road stations 48 variable message signs (LED) 46 variable lane signs Detail view Realisation Start of construction: June 2006. Opening for traffic: May 2007. Weiss-Electronic realised the project by order of the company Cegelec.

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