Traffic density indicator on a contiguous segment of a polyline or path. Given a path with points P_0, P_1, ... , P_N (zero-based index), the SpeedReadingInterval defines an interval and describes its traffic using the following categories.
JSON representation
{"startPolylinePointIndex": integer,"endPolylinePointIndex": integer,// Union field speed_type can be only one of the following:"speed": enum (Speed)// End of list of possible types for union field speed_type.}
Fields
startPolylinePointIndex
integer
The starting index of this interval in the polyline.
endPolylinePointIndex
integer
The ending index of this interval in the polyline.
Union field speed_type. The type of speed in this interval. speed_type can be only one of the following:
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-27 UTC."],[[["\u003cp\u003e\u003ccode\u003eSpeedReadingInterval\u003c/code\u003e indicates traffic density on a path segment using start and end points.\u003c/p\u003e\n"],["\u003cp\u003eIt classifies traffic speed into categories: \u003ccode\u003eNORMAL\u003c/code\u003e, \u003ccode\u003eSLOW\u003c/code\u003e, and \u003ccode\u003eTRAFFIC_JAM\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe interval is represented in JSON format including start/end point indexes and speed information.\u003c/p\u003e\n"]]],[],null,[]]
