It was never uncomfortable, regardless of road quality. (cnet.com)
I'll focus mainly on this, since it eliminates many other variables such as road quality, driver license system, car type / age / quality, driver culture, etc.. (politics.stackexchange.com)
The innovation team has tackled several projects, including an early detection system of sensors for water pipe leaks and truck - mounted sensors to map road quality. (syracuse.com)