Resolved distance and time measurements at an interpolated position on the route path.
Both fields are required because this type is only produced when interpolation
can be fully resolved (i.e. the bracketing progress entries both carry valid values).
Resolved distance and time measurements at an interpolated position on the route path.
Both fields are required because this type is only produced when interpolation can be fully resolved (i.e. the bracketing progress entries both carry valid values).