 
                                    
                            Prepare to go
							                                
                                        
                                    
							                        
                    
                            Go if the way is clear
							                                
                                        
                                    
							                        
                    
                            Stop at the stop line
							                                
                                        
                                    
							                        
                    
                            Go if no pedestrians are crossing
							                                
                                        
                                    
							                        
                     
	 
	