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vehicle_states.md

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Mobility Data Specification: Vehicle States

This file defines all possible vehicle_states that can be used in state machines across all MDS modes. Each mode will use some subset of these states. It does not assign states to modes, but simply lists all possible values. As with all global definitions, they are described in a way that maximizes their relevance to multiple modes. See individual mode definitions for additional details specific to that mode.

vehicle_state In PROW? Description
removed no Examples include: at the Provider's warehouse, in a Provider's truck, or destroyed and in a landfill.
available yes Available for rental via the Provider's app.
non_operational yes Not available for hire. Examples include: vehicle has low battery, or currently outside legal operating hours.
reserved yes Reserved via Provider's app. A scooter waiting to be picked up by a rider, a taxi en route to a pickup.
on_trip yes In a trip. For micromobility, in possession of renter. May or may not be in motion.
stopped yes In a trip, but stopped temporarily for some purpose, e.g. to pick up or drop off passengers or packages, or if a driver is on break.
non_contactable yes Provider has temporarily lost contact with the vehicle and its disposition is unknown. Examples include: connectivity loss, GPS issues.
missing no Provider has lost contact with the vehicle and its disposition is unknown with no immediate resolution. Examples include: scooter taken into a private residence, bike thrown in river.
elsewhere no Outside of regulator's jurisdiction, and thus not subject to cap-counts or other regulations. Example: a vehicle that started a trip in L.A. has transitioned to Santa Monica.

Limitations on the Use of Certain Values

MDS is intended to communicate the provider's best available information to regulators. However there may be legitimate circumstances where providers do not have definitive or current information about devices on the ground. MDS incorporates some values to convey these situations. These vehicle state and event type values are to be used sparingly and temporarily, and are not meant for repeated or prolonged use. These values exist to create logical coherence within MDS about vehicles that are operating abnormally or are out of communication. When a more accurate value is known, the MDS API should be updated with the latest information. Cities may add language to their Service Level Agreements (SLAs) that minimize the use of these values by providers.

Vehicle State: Non-Contactible and Missing

It is expected that non-contactable will be used only for short periods of time and cities may put in place specific limitations via an SLA. As vehicles regain connectivity they should return to their prior state, and then send additional events to reflect any subsequent changes to that state. If vehicles remain non-contactable for over a specific limit as stated in the City SLA, then vehicles should be moved to missing.


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