 | You can help expand this article with text translated from the corresponding article in Hungarian. (July 2019) Click [show] for important translation instructions.
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&sq=&lang=&file=File:M31_(Hu)_Otszogletu_kek_tabla.svg) | |
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| M31-es autópálya | |
&sq=&lang=&file=File:M31_aut%C3%B3p%C3%A1lya_-_t%C3%A9rk%C3%A9p.png) | |
| Route information | |
Part of  | |
| Length | 12 km (7.5 mi) |
| Major junctions | |
| From | &sq=&lang=&file=File:M0_(Hu)_Otszogletu_kek_tabla.svg){kind=small} M0 near Nagytarcsa |
| To | &sq=&lang=&file=File:M3_(Hu)_Otszogletu_kek_tabla.svg){kind=small} M3 near Gödöllő |
| Location | |
| Country | Hungary |
| Counties | Pest |
| Major cities | Budapest, Gödöllő |
| Highway system | |
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The M31 motorway (Hungarian: M31-es autópálya) is a motorway in Hungary, that runs between the M0 motorway at Nagytarcsa and the M3 motorway at Gödöllő.