On: Live map of SF MUNI

[w-ll]

I'm not sure if the're using dead reckoning. I just saw one turn. To me this looks more like gps.

Also, Go Wolf Pack!

[dsl → w-ll]

As I said, if it is something like a bus where the route is known, dead reckoning is still effective.

Even with GPS you usually only get location updates every few seconds, DR fills in the "smoothness" between updates.