Comment Any Maps product is complicated (Score 1) 79
I have seen so many variations of maps and business listings so I can assure everyone that you will never be ready.
You just need to accept the fact that data will always be outdated unless you will hire a person responsible for updates in every city in the world.
This is why any modern mapping relies on crowdsourcing and data aggregation from multiple places and vendors.
For realtime routing you need to have local traffic information so again it means getting road closures and build plans from local sources plus using existing device fleet to monitor speed and congestion.