A method for parallel use of a reserved road space in a transportation network by a plurality of scheduled vehicles and a plurality of unscheduled autonomous vehicles is disclosed. The method comprises determining a route for the unscheduled autonomous vehicles travelling in the transportation network. The route is use for travelling from an origin to a destination in the transportation network. The method further comprises predicting conflicts for the unscheduled autonomous vehicles with the scheduled vehicles when travelling in the reserved road space. Predicting the conflicts is done using the selected route and items of the interaction data for the plurality of scheduled vehicles. The method also comprises generating conflict avoidance instructions for the unscheduled autonomous vehicles in order to avoid the predicted conflicts with the scheduled vehicles.