title: Identify Google traffic data inside application
body: <p>I want to know how to read the traffic information from google map as here in the following image. Google only displays the traffic layer by red, green, and yellow lines. But how can an application identify the color and find out how much traffic there is between source and destination. </p>
  
  <p><img src="https://i.stack.imgur.com/PrVm9.png" alt="enter image description here"></p>
  
  <p>Visually users can see with their eyes and identify the colors but what about the application?</p>