How accurate of the gps timing on ambulances?

  • administrators

    Google maps ETAs are based on a variety of things. These things range from official speed limits and recommended speeds, historical average speed data over certain time periods.

    Actual travel times from previous users, and real-time traffic information. They mix data from whichever sources they have, and come up with the best prediction they can make.

    A 2013 study evaluated google maps ETA vs Actual ETA for Ambulances. One thing to note is that there is a difference between Siren/Lights On vs Off. This is an older study but may still be relevant