You no longer need to request metrics for truck weight segments with the vehicle_weight parameter, as truck metrics are now automatically segmented by medium-duty and heavy-duty weight classes.

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Analyses with Traveler Attributes and a date period starting in January 2019 or later now require that you request metrics for individual Traveler Attributes when you query the analysis status. Traveler Attributes after January 2019 are based on 2020 US Census data and 2019 ACS.