Author: Darth Autocrat

A speed limit without a limit value. Used to indicate the absence of a speed limit.

A web location for a Feature. URLs should always be stored in repeated fields because some objects (eg. transit schedules in Brussels) have different URLs for different languages.

A speed limit whose value can change based on road, traffic, and weather conditions.

A proto representing a vertical ordering of a feature. NOTE: This shouldn’t be used if a more specific field can be used instead. E.g., for TYPE_SEGMENT features grade_level field should be preferred. For indoor features RELATION_ON_LEVEL should be preferred. See go/aboutgrades for comparison of various types of levels available.

A weight with a numerical value and unit.

Bounding box for page structural elements: pictures, paragraphs, characters, etc.

Break label

Trust related information about the input source (feed or user) to help feature summarization. Typically, the values in this proto are either based on source’s previous observations (e.g., a blocked LBC user or a trusted feed) or their status (Google hired operator or admin user). The proto can later contain a more granular trust score or correctness probabilities. A higher enum value indicates a more trusted source. Leaving room in the value space for adding more granular enums, if they become necessary later.

A speed value and unit.