The tracks of the busiest tramlines of Budapest, trams 4 and 6 on the Nagykörút (Grand Boulevard), will be refurbished by BKV in order to upgrade deteriorated tracks thereby heightening travel comfort for passengers and also eliminating speed restrictions for trams. The refurbishment is financed from allocated development funds based on the public service contract between BKK and BKV.

Thanks to the upgrade, the speed restriction will be eliminated on a 1,100 meter long track section between József utca and Üllői út enabling passengers to get to their destinations faster due to reduced travel times on the trams. The refurbishment works will include road junctions as well: in addition to the ones between József utca and Üllői út, the Bérkocsis utca junction will also be reconstructed. The new tram tracks will get uniform basalt flooring and the materials used for the refurbishment will make more silent tram service possible thereby lessening noise levels along the route.

During the time of refurbishment the entire track section between Blaha Lujza tér M and Corvin-negyed M will have to be closed to tram traffic from 1 am on Saturday 13 October to 4 am on Monday, 5 November 2012. Trams will be replaced by buses during this period daily between 4:00 and midnight between Blaha Lujza tér M and Boráros tér H; and on the full length of the line at night (daily between midnight and 4 am) between Széll Kálmán tér M and Móricz Zsigmond körtér.

Tram services

Daytime service

Trams will provide a divided service between 4 am and midnight:
- On the northern section of the route between Széll Kálmán tér M and Blaha Lujza tér M, trams run with a combined number 4-6.
- On the southern section, trams 4 run between Újbuda-központ and Corvin-negyed M; while trams 6 run between Móricz Zsigmond körtér and Corvin-negyed M.

Night service

There is no tram service at night from 0:35 and 4:15. Tram replacement buses 6V will be operating on the full length of the route.

Tram replacement bus services

Daytime service

Replacement bus 4-6V will be operating between Blaha Lujza tér M and Boráros tér H from 4:00 to midnight. In order to provide a faster bus service, a traffic lane will be turned into a temporary dedicated bus lane on the Nagykörút.

The stops of tram replacement bus 4-6V in the direction of Boráros tér H are as follows:

Blaha Lujza tér M: temporary stop located at József körút 11
Rákóczi tér: the stop of night bus 923
Harminckettesek tere: the stop of night bus 923
Corvin-negyed M: the stop of night bus 923
Mester utca: the stop of night bus 923

The stops of tram replacement bus 4-6V in the direction of Blaha Lujza tér M are as follows:

Boráros tér H: the stop of tram replacement bus a 2V, under Petőfi híd
Mester utca: the stop of night bus 923
Corvin-negyed M: the stop of night bus 923
Harminckettesek tere: the stop of night bus 923
Rákóczi tér: the stop of night bus 923

Connection is guaranteed between tram replacement buses and trams at Blaha Lujza tér M and Mester utca in the early morning and evening hours when trams run only every 5 minutes or less frequently. In the case of trams or replacement buses running late we also guarantee connections at these stops.

Source: bkk.hu