Altitude that defines the lower limit of an air transport network object.
-- Description --
NOTE When applied to an AirRouteLink it corresponds to the Lowest Safe Altitude, which is defined in order to provide safety for navigation.
        
     
            
    
    
        
                
                    
                        | Egenskap | Stereotype | Beskrivelse | Type | Multiplisitet | 
                
                    
                        | altitude |  |  | Measure | 1..1 | 
        
     
    
        
                
                    
                        | Navn | Type | Lengde | Multiplisitet | 
                
                    
                        |  | Measure |  | 1..1 | 
        
     
    
        
            
                
                    | Name | Type | English | Description | 
            
                
                    | altitude | Measure |  | Value of the altitude limit. | 
        
     
    
        
        
        
        
            
                
                    | Navn | Beskrivelse | 
            
                
                    | Applies to AirRouteLink and AirspaceArea only | /* This property can only be associated with a spatial object that is an Air Route Link or Airspace Area. */
inv: networkRef.element.oclIsKindOf(AirRouteLink) or
networkRef.element.oclIsKindOf(AirspaceArea) |