How does traffic updates work in gps




















By using the website operated by Sygic a. Glossary Real-time Traffic Information. Real-time Traffic Information The best way to avoid delays on the road is to drive with a reliable traffic information service. The amazingly accurate real-time traffic information is updated every 2 minutes, so you will always know: where the traffic is how long it will take to get through it how to avoid the traffic jam with automatic faster route suggestions When you look at the map, the red and yellow lines indicate heavy and light traffic.

See pricing. Agree More info. These data could change when GPS updates are done which improves the accuracy and the programming of your navigation installed in your GPS unit. The GPS unit must receive live information over the air to incorporate and update the data about the ever-changing road conditions and traffic.

Live traffic updates can give you the ability to route around slowdowns and accidents before getting stuck into a bumper-to-bumper situation. The traffic updates that your GPS will provide can come from a variety of sources. Companies combine transportation sensor data, live traffic updates from TV news and radio reports from shipping services and trucking companies which all create a real-time picture of the current traffic flow.

All of these will estimate delays on certain routes and then pinpoint where the traffic begins and ends. Once you are connected, you will be able to get signals from nearby FM towers which are transmitting real-time traffic updates. These FM updates are free. However, they are less detailed compared to other sources of live traffic information.

There are GPS units which include cellular modems that can access premium services where the manufacturer directly sends detailed traffic updates to the GPS unit. If the delay times are increasing and if multiple users are slowing down as indicated on their GPS units, then it is a sign that traffic is building up. There are cellular phones which are equipped with GPS processors. These phones can receive live traffic updates as well as the details of their current position over the cellular network.

So there is plenty of data for Google Maps to analyze which is why it is so accurate. As a result, a driver receives the most up-to-date information on rout availability and traffic jams. The next question is — what type of real-time data is transmitted between a satellite and a receiver built-in a GPS tracker? After that, this type of information longitude as well as latitude is transformed into the address. Bear in mind that the Global Positioning System comes with the databases that contain different types of important information including length of roads, length of roads as well as the average speed of vehicles on roads and other types of data.

This is something that helps a GPS receiver calculate the best possible route for your car and show it to you on Google Maps. If this is the case, a receiver built-in your GPS system will also need such an important parameter as the height above the earth. What does it mean for a driver? As you can see, drivers can benefit from using a GPS tracking device in a number of ways.

However, using a GPS tracking device also has many other significant benefits for drivers. Most importantly, the innovative GPS tracking devices provide car drivers with the information on the current rout traffic and traffic jams. Data from these sensors can be used to provide real-time traffic updates, and, once collected, the information becomes part of the pool of historical data used to predict traffic volume on future dates.

However, sensor data was largely limited to highways and primary roads because the sensors were typically installed only on the most heavily traveled or traffic-prone routes [sources: Machay , Matthews, Palmer ]. Beginning in , Google turned to crowdsourcing to improve the accuracy of its traffic predictions.

When Android 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 [source: Barth ]. As more and more drivers use the app, the traffic predictions become more reliable because Google Maps can look at the average speed of cars traveling along the same route without misinterpreting someone's morning coffee stop as a traffic jam.

If Google Maps doesn't have enough data to estimate the traffic flow for a particular section of road, that section will appear in gray on the traffic layer [source: Google Help ]. With its acquisition of Waze in , Google added a human element to its traffic calculations. Drivers use the Waze app to report traffic incidents including accidents, disabled vehicles, slowdowns and even speed traps [sources: Palmer , Waze ].

These real-time reports appear as individual points on Google Maps, with small icons representing things like construction signs, crashed cars or speed cameras. Sign up for our Newsletter!



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