Not entirely the same thing but navigation and path finding for delivery apps is not a solved problem everywhere. Especially in places where street data isn't

Not entirely the same thing but navigation and path finding for delivery apps is not a solved problem everywhere. Especially in places where street data isn't complete or works differently (no street names) than in the western cities where Google Maps etc. are developed. Grab (https://engineering.grab.com https://engineering.grab.com) always has interesting blog posts about these topics like: https://engineering.grab.com/road-localisation-grabmaps https://engineering.grab.com/road-localisation-grabmaps