A method implemented in an aircraft docking system for guiding a pilot of an approaching aircraft to a stop position at a stand, wherein the aircraft docking system comprises a position monitoring system, a control unit, and a display, said method comprising: the position monitoring system monitoring a position of the approaching aircraft within a volume at the stand, wherein said volume has a longitudinal extension along an approach direction towards an expected entrance position of the aircraft, the control unit comparing said monitored position with a first area, said first area enclosing the stop position and extending along the approach direction to define a front boundary facing the approaching aircraft, the control unit comparing said monitored position with a subsection of the first area, said subsection enclosing the stop position and extending along the approach direction to meet a portion of the front boundary of the first area, wherein the subsection shares a portion of its boundaries with the first area, said shared portion being a portion of the front boundary of the first area, if said monitored position is found to be inside said subsection of the first area: the control unit transmitting information to the display to show an indication to the pilot of the approaching aircraft to proceed approaching the stand, if said monitored position is found to be inside the first area but not inside said subsection of the first area: the control unit transmitting information to the display to show an indication to the pilot of the approaching aircraft to stop the aircraft. the position monitoring system monitoring a position of the approaching aircraft within a volume at the stand, wherein said volume has a longitudinal extension along an approach direction towards an expected entrance position of the aircraft, the control unit comparing said monitored position with a first area, said first area enclosing the stop position and extending along the approach direction to define a front boundary facing the approaching aircraft, the control unit comparing said monitored position with a subsection of the first area, said subsection enclosing the stop position and extending along the approach direction to meet a portion of the front boundary of the first area, wherein the subsection shares a portion of its boundaries with the first area, said shared portion being a portion of the front boundary of the first area, if said monitored position is found to be inside said subsection of the first area: the control unit transmitting information to the display to show an indication to the pilot of the approaching aircraft to proceed approaching the stand, if said monitored position is found to be inside the first area but not inside said subsection of the first area: the control unit transmitting information to the display to show an indication to the pilot of the approaching aircraft to stop the aircraft. the control unit transmitting information to the display to show an indication to the pilot of the approaching aircraft to proceed approaching the stand, if said monitored position is found to be inside the first area but not inside said subsection of the first area: the control unit transmitting information to the display to show an indication to the pilot of the approaching aircraft to stop the aircraft.