A mobile device such as a smartphone may analyze acceleration data to determine when the mobile device, and therefore the user of the mobile device, has been in a vehicle accident. Detecting whether a vehicle accident has occurred may account for an intensity of acceleration forces, a duration of acceleration forces, and concurrent non-force activities detected by the mobile device (e.g., loud audio or screen breakage). If the mobile device has determined that an accident has occurred, the mobile device can present a user interface that provides access to functions that are helpful following an accident. For example, the mobile device may provide one-touch dialing or texting to 911 or emergency contacts. In some examples, the mobile device may automatically dial or text 911 or emergency contacts upon an automatically-initiated countdown timer completing without user interruption.
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Stogaitis, Marc, "DETECTING A VEHICLE CRASH USING A MOBILE COMPUTING DEVICE", Technical Disclosure Commons, (October 15, 2019)