[Tagging] improve tagging of traffic_calming

[John Willis]

Javbw

> On Nov 22, 2015, at 9:35 AM, John Willis <johnw at mac.com> wrote:
> 
> large sections of them on rural roads before dangerous curves

These are heavily signed as being dangerous to fast moving motorcycles in the curves, so they are a good thing to map. They have them there to make the motorcyclists slow down on the roads (per the warning signs I have seen).

These are what I would map as way segments. 

https://goo.gl/maps/Mz26VkaF6j62

Javbw