- Valid:
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From 8:15, Saturday, 13 June - until 17:30
(modified at 2026.06.09. 16:25) - Details:
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The R4 transport heritage tram operates as a loop service from Újbuda-központ to Széll Kálmán tér along tram line 4, then continues via Mester utca–Haller utca–Orczy út–Fiumei út–Salgótarjáni utca to Hidegkuti Nándor Stadion, and further along tram line 37A to Blaha Lujza tér.
- Affected route:
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R4Újbuda-központ M
Széll Kálmán tér M
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