The Trans-Siberian Highway can vary from well-surfaced motorway in the west to a unstable and tricky dirt track in the east. Conditions often deteriorate in the summer, as heavy rains make sections of the road impassable.
Such is the nature of Russia, the extreme winter conditions almost fully destroy parts of the road each year – and maintaining the huge stretch of road is near impossible.
The road is isolated and desolate, so you would do well to carry survival supplies with you.