private async Task<List<Segment>> GetUnSurveyedSegments(List<Segment> allSegments, RoadSurvey roadSurvey)
{
var surveyedSegmentIds = await roadSurvey.GetSurveyedSegmentInventIds();
var unSurveyedSegments = allSegments
.Where(s => !surveyedSegmentIds.Contains(s.InventId))
.ToList();
return unSurveyedSegments;
}
