private void buildHorizontalRoads() {
		// Add Horizontal Roads
		_horizontalRoads = new VehicleAcceptor[_gridDimensions.getRow()][_gridDimensions.getColumn()+1];
		 //[row][column]
		for (int i=0; i<_gridDimensions.getRow(); i++) {
	      for (int j=0; j<=_gridDimensions.getColumn(); j++) {
	        VehicleAcceptor l = VehicleAcceptorFactory.newRoad();
	        //l.setOrientation(((eastToWest)? RoadOrientation.East_West: RoadOrientation.West_East ));
	        l.setOrientation(VehicleOrientation.East_West);
	        _horizontalRoads[i][j] = l;
	      }
	    }
	}