Another video showing the construction of the Biatorbágy slip road – nearing completion

MKIF Magyar Koncessziós Infrastruktúra Fejlesztő Zrt. has published new footage of the construction of the Biatorbágy slip road. The M1 expansion is a process being closely monitored, as the new, final road structure of the motorway will be completed first on the slip road and the subsequent section, which has significantly higher technical specifications compared to the previous design.

Just a week ago MKIF posted a video about the work, so the progress is easy to compare.

The entire track structure is being rebuilt

As part of the project, specialists have excavated the existing track to a depth of 100–120 centimetres in several places and are now carrying out a complete structural rebuild. The works involve moving around 6,000 cubic metres of earth, whilst the associated drainage systems are also being fully renewed.

A thicker layer of asphalt ensures greater load-bearing capacity

One of the key features of the new track surface is the increased thickness of the asphalt:

An asphalt layer is being laid that is one and a half times thicker than the previous one, totalling 32 centimetres. This design can significantly increase the road’s load-bearing capacity and service life, particularly on motorway sections with heavy traffic and intense heavy goods vehicle traffic.

They use state-of-the-art technical solutions

Instead of the traditional hydraulically bound base course, a crushed stone base with a continuous gradation is laid beneath the surface course. Experts expect this to result in better fatigue resistance and more flexible structural behaviour. The more flexible system is better able to distribute dynamic loads, which may result in a more durable and resilient surface in the long term.

The drainage system and slope protection will also be upgraded

Environmental safety and stability were also prioritised during construction: a section of the embankment approximately 300 metres long was clad with a gabion wall, which provides both stabilisation and a modern drainage solution.

According to the current schedule, the Biatorbágy slip road is due to open to traffic at the end of May.