WAZIPOINT Engineering Science & Technology: How Google Map Shows Live Traffic Where Cars Not Use GPS Devises

Wednesday, March 13, 2019

How Google Map Shows Live Traffic Where Cars Not Use GPS Devises

Live Traffic on Google Maps
Fig-Google traffic is featuring on Google Map

How Google Map Works for Showing Live Traffic in Real Time?

Google traffic is featuring on Google Maps to show the live road traffic conditions in real time. Though Google Live Traffic  giving us the information about vehicle speed and density on road, but it does not getting any information directly from vehicles, because all vehicle do not uses GPS device . Google actually using the smart phone data and its movement on the roads.  

The colors in the above image indicate the speed of traffic on the road.

1.     Green means there are no traffic delays;

2.     Orange means there's a medium amount of traffic;

3.     Red means there are traffic delays; &

4.     The more red, the slower the speed of traffic on the road.

Google Maps work as all smart phones that have location services turned on send anonymous bits of data back to Google. This allows the company to analyze the total number of cars, and how fast they're going, on a road at any given time.

Other popular GPS mapping apps, like Apple Maps, Waze, Nokia's HERE maps, and Mapquest, all offer traffic information, but the advantage Google has is the sheer number of people who use it, and the amount of data it has.

Google Maps bases its traffic views and faster-route recommendations on two different kinds of information:

1.     Historic Data; &

2.     Real Time Data

Historic Data: Historical data is the average time it takes to travel a particular section of road at specific times on specific days.

When Smart phone users turn on their Google Maps app with GPS location enabled, the phone sends back bits of data, anonymously, to Google that let the company know how fast their cars are moving.


Google Maps continuously combines the data coming in from all the cars on the road and sends it back by way of those colored lines on the traffic layers.

Real Time Data: Real-Time data is sent by smartphones GPS that report how fast cars are moving right then.

Historical data are important because it's hard to acquire enough real-time information to make traffic forecasts. Think of the complications involved. There aren't that many people with smartphones driving any given road at a given moment, and not all of them will have enabled their data-sharing software.

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