By Jan 25th, China declared a Level 1 Health Emergency in 30 out of 31 provinces, and began locking down other provinces.
On Jan 26th, China cancelled all inter-province bus service.
On Jan 30th, China closed the highways between provinces.
Also, all of this nicely coincided with the lunar new year holiday, when the vast majority of the country is already on holiday for 2 weeks, and not going to work, or school.
It's not really comparable.