private Location getLocationFromString(String s) {
        switch(s) {
            case "trein":
                return this._trainPlatform;
            
            case "vrachtauto":
                return this._truckPlatform;
            
            case "binnenschip":
                return this._riverBoatPlatform;
                
            case "zeeschip":
                return this._seaShipPlatform;
                
            default:
                return null;
        }
    }