Skip to main content

How does Google Maps predict traffic?

The green, yellow and red routes that Google Maps uses to indicate clear, slow-moving, or heavily congested traffic are a great help when you're trying to determine the fastest way to your destination, but how does Google know the traffic conditions between where you are and where you're trying to go?
Google Maps bases its traffic views and faster-route recommendations on two different kinds of information: historical data about the average time it takes to travel a particular section of road at specific times on specific days and real-time data sent by sensors and smartphones that report how fast cars are moving right then.

 Early versions of Google Maps relied only on data from traffic sensors, most of which were installed by government transportation agencies or private companies that specialize in compiling traffic data. Using radar, active infrared or laser radar technology, the sensors are able to detect the size and speed of passing vehicles and then wirelessly transmit that information to a server.

 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.

 Beginning in 2009, 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.

 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.


Popular posts from this blog

What is the difference between a direct and an indirect address instruction ?

Direct addressing means the instruction refers directly to the address being accessed. That is, the instruction encoding itself contains the address of the location. Depending on the instruction set, it may also allow computing a small index relative to the address. When used that way, you can think of that as a direct-indexed mode. (Note: Some processors call ‘direct’ mode ‘absolute’, such as the 6502.)   Indirect addressing uses an address held in a register or other location to determine what memory location to read or write. The idea here is that the instruction itself isn’t directly telling you the address to access, but rather indirectly telling the CPU where to find that address. The processor may also allow you to add a small offset to the indirect address, giving an indirect-indexed addressing mode. Also Read : 5 Best Terminal Emulators for Linux The 6502 one is a little quirky: The 6502 doesn’t have general-purpose registers large enough to store add

What Are The Benefits Of Working As a Freelancer

Let’s assume that you know what freelancer is, working as a  Freelancer  has so many advantages but they have some disadvantages too. But in this post, we’ll focus on the benefits of working as a freelancer. Ok ok, enough intro, let’s get right on the main stuff. 😊 What Are The Benefits Of Working As a Freelancer You’re Your Own Boss Freelancers are essentially their own bosses and can avoid all the stress that comes from working for someone difficult. You Control Your Workload As a freelancer, you get to say when enough is enough. You can control the number of clients and projects. You’re Less Likely To Get Sick Most Freelancers  work  from home & deal with all their clients remotely. This working situation keeps away many diseases. You Work Whenever You Want As a freelancer, whenever you need a break, you can get one. And you can take naps whenever you need one. You Work Wherever You Want Freelancers  can work from  anywhere  in the world as long a

What is ASP.NET? and it's ARCHITECTURE

What is ASP.Net? ASP.Net is a web development platform provided by Microsoft . It is used for creating web-based applications. ASP.Net was first released in the year 2002. The first version of ASP.Net deployed was 1.0. The most recent version of ASP.Net is version 4.6. ASP.Net is designed to work with the HTTP protocol. This is the standard protocol used across all web applications. ASP.Net applications can also be written in a variety of .Net languages. These include C#, VB.Net, and J#. In this chapter, you will see some basic fundamental of the .Net framework. The full form of ASP is Active Server Pages, and .NET is Network Enabled Technologies. ASP.NET Architecture and its Components ASP.Net is a framework which is used to develop a Web-based application. The basic architecture of the ASP.Net framework is as shown below. ASP.NET Architecture Diagram  he architecture of the.Net framework is based on the following key components Language – A variet