Why You Should Be Careful When Using Google Maps?

Google Maps has become an essential part of our journeys. Sure, it’s super convenient and has saved us from getting lost countless times, but have you ever wondered how it collects all that data?

So, here’s the deal. Google Maps uses cars equipped with cameras to capture images of streets, buildings, and everything in between. While this method provides a ton of visual information, it can also lead to some inaccuracies, especially when it comes to turn-by-turn navigation.

You should be careful when using Google Maps while driving because the details about navigation that you are seeing in Google Maps might not be 100% correct. Let’s dive deep to understand it.

The Base Map Data.

Google uses photogrammetry, which combines satellite imagery, aerial photography, and traditional street maps with GPS data to stitch them together to give a geographical layout.

Determining your location.

Google uses WiFi scanning and Bluetooth scanning to identify your location.

WiFi Scanning:

• Google Maps utilizes a process called WiFi scanning. With your permission, it can search for and identify nearby WiFi networks, even if you’re not connected to them.
• Each WiFi access point has a unique identifier (MAC address) and often broadcasts its location (although this isn’t always enabled). By detecting these signals and their known locations, Google Maps can pinpoint your device’s approximate position.
• This is particularly helpful indoors, where GPS signals are weak or unavailable. The accuracy depends on the density of WiFi networks in your area. In places with many access points, Google Maps can achieve room-level precision [1].

Bluetooth Scanning:

• Similar to WiFi scanning, Google Maps can also scan for nearby Bluetooth devices with your permission.
• However, unlike WiFi access points, Bluetooth devices don’t typically broadcast their location.
• In this case, Google Maps relies on a different approach. It compares the Bluetooth devices your phone detects with a database of anonymized Bluetooth signatures and their corresponding locations.
• If there’s a match, it helps refine your location, especially indoors or in situations with weak GPS signals.

While this approach offers accuracy sometimes, the continuous scanning for WiFi and Bluetooth networks can consume more battery power; which makes Google Maps one of the best battery-draining apps compared to these other navigation apps.

Live Traffic Data:

Google collects location data from smartphones using Google Maps. This real-time information helps predict traffic congestion and suggest faster routes.

User Input: Business listings, points of interest (POIs), and even road condition reports from users contribute to the map’s comprehensiveness and aid in keeping it up-to-date.

Reliance on Live Data: In areas with poor internet connectivity, live traffic updates might be unavailable, potentially affecting route optimization.

When you’re relying on Google Maps for directions, keep in mind that other navigation apps might offer more precise turn-by-turn guidance. So, it’s always a good idea to double-check your route and stay alert, especially in unfamiliar areas.

Next time you’re hitting the road, remember to use Google Maps wisely and stay cautious. Safe travels, everyone!

Read more about How GPS works on your mobile.