Regional matrix Origin Destination of trips distinguished by origin, destination, time slot, reason and main mode of travel (2016). The matrix refers to an average weekday and considers 1525 zones (of which 1450 zones within the region). The travel data is distinguished by origin, destination, time slot, reason and main mode of travel. The OD 2016 regional matrix includes 8 modes (driver car, passenger car, road LPT, iron LPT, motorbike, bike, foot and other) and 5 reasons (work, study, occasional, business, return home).