Making Valhalla Understand Monday Morning
It is Monday, 08:12. A delivery driver leaves the depot on a route the dispatcher built on Sunday afternoon. The routing engine that built it does not know that the arterial out of the warehouse jams between 08:00 and 08:30. The driver does. So does anyone who lives nearby. Every minute the engine does not know costs someone — the driver, the customer, the company.
Predicted traffic is the routing feature most people assume already works. In Valhalla, it can — once someone does the work to feed it well. Over the last several months at Globus, we have done that work.
This post is what we shipped, what we threw away, and why a deliberately small layer ended up mattering more than a flashy one.
