The plans affect Király Street, Rákóczi Road and the Corvin Quarter.
The Váci út-Üllői út and Nagykörút lines are completed.
The tram development on Szent István körút, which has slowed down traffic in the city in recent years, will end on 1 August.
The major repair of the track section is scheduled to last until 31 July.
The next planned phase of the renovation of the tram lines on the Great Boulevard near the Pest end of the Margaret Bridge will begin on Saturday.
BKK has launched a tender for the design of a "bike lane" as a key step in the development of the Great Boulevard.
One of the capital's most important transport routes could be given a unified concept.
