In fact, the numbers are estimated to be around 2 billion animals a year globally.

Extrapolating globally based on total length of roads, roughly 5.5 million vertebrates are killed per day, or over 2 billion annually.

As for people

According to the World Health Organization (WHO), road traffic injuries caused an estimated 1.35 million deaths worldwide in 2016.[2] That is, one person is killed every 26 seconds on average.