Tierr@_de_N@die: Getting the right position of a client could be the difference between losing a ride or not. This is the main reason because Uber works in a system in order to improve the client's location when the "shadowing" of tall buildings perturb the GPS signals.
Andrew Irish and Danny Iland were both PhD students at UC Santa Barbara when their startup Shadow Maps was acquired by Uber in 2016. Since then, they’ve been working on integrating their technology into Uber’s app. They recently began beta testing in 15 cities across the globe, and based on early results, they are now getting GPS signals that are twice as accurate as before.
Source (www.theverge.com): How Uber is moving the “blue dot” and improving GPS accuracy in big cities – The Verge