Contains information about tolls on the route. This field is only populated if tolls are expected on the route. If this field is set, but the estimatedPrice subfield is not populated, then the route contains tolls, but the estimated price is unknown. If this field is not set, then there are no tolls expected on the route.
Speed reading intervals detailing traffic density. Applicable in case of TRAFFIC_AWARE and TRAFFIC_AWARE_OPTIMAL routing preferences. The intervals cover the entire polyline of the route without overlap. The start point of a specified interval is the same as the end point of the preceding interval.
polyline: A ---- B ---- C ---- D ---- E ---- F ---- G
speedReadingIntervals: [A,C), [C,D), [D,G).