[2] It will be 78 km (48 mi) long once complete and is planned as a four-lane road throughout its entire length.

From the Ruzyně off-ramp, the motorway continues in a north-westerly direction towards Slaném, passing the town of Buštěhrad.

After completion, the motorway will therefore continue in a north-westerly direction, curving from Knovíz to form the south-western bypass of Slaný, crossing several valleys.

The continuation northwest of Slaný will follow the route of the current I/7 road, which forms the left half of the future motorway profile, except for the section near Písek, where a north-eastern bypass will be created.

At Kutrovice, the motorway will then cross a valley, then pass by the village of Třebíz to the border of the Central Bohemia and Ústí nad Labem Region.