String regionName = br.getName();
String inputStationName = regionName + "_inputStation";
InputSection is = new BlockingQueue(br);
ServiceSection ss = new ServiceTunnel();
OutputSection os = new BlockingRouter();
SimNode inputStation = new SimNode(inputStationName, is, ss, os);
inputStation.getNode().setBlockingRegionInputStation(br);
//adds the input station of the blocking region