Let's Build a Routing Engine

"Logic will take you from A to B. Imagination will take you everywhere."
- Albert Einstein

Despite the possibility of flying cars in the near future, right now, you still need to use the road or rail to get from point A to point B on land. I am pretty sure that you have never once deleted the Maps app from your smartphone. So, what makes the Maps app so indispensable that you can't imagine living in the pre-Google Maps era (that is, pre-2005)? Map-based routing saves you thousands of dollars in fuel costs and time spent in traffic (unless you're in the Bay Area, in which case, even Google Maps can't save you from the traffic!).

Good map-based routing is dependent on an accurate, well-defined, and updated...