When you start to edge forward onto the crossing
							                                
                                        
                                    
							                        
                    
                            When a driver from the opposite direction reaches the crossing
							                                
                                        
                                    
							                        
                    
                            When the pedestrians push the button on the far side of the crossing
							                                
                                        
                                    
							                        
                    
                            When the pedestrians have cleared the crossing