M0 motorway
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| M0 autópálya | |
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| Length: | 79 km (49 mi) 108 km (67 mi) planned |
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| Counties: | Pest, Budapest |
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| Motorways in Hungary | |
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The M0 motorway is a ringroad around Budapest, the capital of Hungary. The ring presently connects motorways M1, M7, M6, M5, M4, M3, M2, connecting currently to Highway 11. The whole length of the motorway is planned at about 108 km. About 78 km have been completed as of 2013.
The 29 kilometre long section between M1 and M5 is the oldest section of the M0 motorway, and originally did not comply with formal motorway specifications. Speed limit on this section was 80 km/h. Construction work between 2011 and 2013 has expanded most of this busy section (except for the short section between M1 and M7) to 2x(3+1 emergency) lanes, and have allowed for speed limits to be raised to 110 km/h.
The southern section upgraded to a six lane motorway was delivered between M1 and Highway 51 on 30 June 2013. The section between Highway 51 and M5 was renamed Highway M51 when a new section directly connected the M1-M5 section to the M5-M4 section of the M0. This new section was completed on 31 August 2013. (Before the new section was completed M0 shared a section with highway M5, see the map to the right.) The short section between M1 and M7 was upgraded to a six lane motorway in 2015.
The 12 kilometre long section between M5 and the initial section of the future M4 was completed in 2005. Maximum speeds on this section are 110 km per hour.
The 26 kilometre long section between the future M4 and M3 was completed in September 2008.
The 7 kilometre long section between M3 and the Megyeri Bridge was opened before it connected to the rest of the M0 and was known as Highway 2/B and Highway 2/A. Both 2/B and 2/A are four-lane highways, but Highway 2/A doesn't feature a median between the lanes. Maximum speeds on Highway 2/A are 80 kilometers per hour. It was renamed to M0 when the M5-M3 section was completed. Also opened in September 2008, the Megyeri Bridge, opened in September 2008, further connects M0 to Highway 11.
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