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 (S102) a position of the approaching aircraft within a volume at the stand , wherein said volume has a longitudinal extension along an approach direction (L) towards an expected entrance position of the aircraft , the control unit comparing (S106) said monitored position with a first area , said first area enclosing the stop position and extending along the approach direction (L) to define a front boundary facing the approaching aircraft , the control unit comparing (S108) said monitored position with a subsection of the first area , said subsection enclosing the stop position and extending along the approach direction (L) 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 (S110) 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 (S112) information to the display to show an indication to the pilot of the approaching aircraft to stop the aircraft . the position monitoring system monitoring (S102) a position of the approaching aircraft within a volume at the stand , wherein said volume has a longitudinal extension along an approach direction (L) towards an expected entrance position of the aircraft , the control unit comparing (S106) said monitored position with a first area , said first area enclosing the stop position and extending along the approach direction (L) to define a front boundary facing the approaching aircraft , the control unit comparing (S108) said monitored position with a subsection of the first area , said subsection enclosing the stop position and extending along the approach direction (L) 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 (S110) 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 (S112) information to the display to show an indication to the pilot of the approaching aircraft to stop the aircraft . the control unit transmitting (S110) 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 (S112) information to the display to show an indication to the pilot of the approaching aircraft to stop the aircraft . <EOS>