During taxi the aircraft struck a parked aircraft, damaging the wings of both aircraft. When taxiing from the parking position the aircraft collided with another aircraft standing on the left neighbouring stand. The aircraft were parked on the yellow guidelines in echelon with other BAe 146 aircraft on either side. It was an angled nose-out position. The angle was 45 deg to the taxi lane. The guideline bent off 3 m in front of the taxi lane and crossed the taxi lane at an angle of 90 deg. The opposite stands on the other side of the taxi lane were not occupied. Ground delivered the taxi clearance as follows: “taxi holding position 14L via alfa, taxi straight ahead to join alfa. The assistance of a marshaller was not requested. The co-pilot taxied straight ahead in accordance with the clearance. He did not follow the guideline. The pilot was preoccupied by the density of the vehicle traffic in the vicinity of the aircraft. He did not watch the other aircraft on the neighbouring stand. The co-pilot taxied slowly forward and collided with the aircraft parked on the left side.