A guidance system guides a driver to drive a service vehicle, such as a baggage
loading vehicle, into a prescribed parking position adjacent to an aircraft without
colliding with the aircraft. The guidance system includes at least two indicator
markers, preferably marker lights, arranged spaced apart from one another on the
aircraft. The two markers present a prescribed visual pattern, e.g. an alignment
of the two markers, along a line of sight defining a safe approach path. If the
driver steers along this safe approach path so that he sees the prescribed visual
pattern of the markers, then a collision between the vehicle and the aircraft will
be avoided. Alternatively, a projector projects a light pattern such as a projected
boundary marker line onto the ground surface adjacent to the aircraft to mark a
safe collision-free approach path.