Live data from Hacker News

Italian Village Installs Speed Cameras, Records 58,000 Infractions in 2 Weeks

npr.org

1–5 of 5 posts

Re: Italian Village Installs Speed Cameras, Records 58,000 Infractions in 2 Weeks

#3

This is a headline right out of the Onion. But also a great way to raise gov revenues, or increase the speed limits to what locals actually drive at

"the numbers suggested half of all cars travelling the route were speeding."

Most highway organizations use the 85th percentile rule to set speed limits.

"The 85th percentile speed is the speed that 85 percent of drivers travel at or below and is one of the best indicators of a reasonable and safe speed."

Re: Italian Village Installs Speed Cameras, Records 58,000 Infractions in 2 Weeks

#4
post #3

This is a headline right out of the Onion. But also a great way to raise gov revenues, or increase the speed limits to what locals actually drive at

"the numbers suggested half of all cars travelling the route were speeding." Most highway organizations use the 85th percentile rule to set speed limits. "The 85th percentile speed is the speed that 85 percent of drivers travel at or below and is one of the best indicators of a reasonable and safe speed."

> The 85th percentile speed is [...] one of the best indicators of a [...] safe speed

That does seem like a gross oversimplification. 15% of the cars driving through a neighbourhood at 40Miph/65kmph or faster doesn't make that speed a safe speed for that neighbourhood.