An apparatus is provided for efficiently allocating a transmission period in a wireless network system. A data communication unit for transmitting and receiving data controlled by the data control unit. The tube has, in each spinning station, a recess which extends along an arc of the circumference of the tube. The gutters extend along the container wall to one or more openings, thereby guiding roots to the openings for air pruning the roots. Corresponding image attributes to the groups of pixels are determined. These formats include a fare history graph, an interval grid, a route map, a future fare graph, andor a departure dateduration grid.