Re: [OSRM-talk] routing with GPUs or mapD

Bjorn, This paper outlines one approach that is very fast: http://www.cs.princeton.edu/~rwerneck/papers/DKW14-crp-gpu.pdf and there are others:

[OSRM-talk] routing with GPUs or mapD

Brief introduction: The difference between (1) routing + overlaying congestion data and (2) routing with congestion data is that the former simply provides a route which is extended with the delay given by the reduced travel speed inferred from the congestion (option 1). We can do that easily