I updated to iOS 10. Questions about Maps

[iMore Question]

On Maps: Why is the road (usually blue) orange in places? Also, when viewing the city map (before selecting route) why do some streets (in grey) have short red or yellow lines on the edge close to intersections?

 

[Tartarus]

Hi, welcome to iMore.
What you're seeing is traffic information.

Orange is slow going traffic and red is stopped traffic, as in they barely move forward.