Complex sentence: The airfield consisted of four concrete runways 4907x150 (N/S), 5004x150 (NE/SW), 5000x150 (E/W), 5000x150 (NW/SE), plus associated taxiways, landing aids, and an extended length parking apron.
Split into simpler sentences: The airfield consisted of four concrete runways 4907x150 (N/S), 5004x150 (NE/SW), 5000x150 (E/W), 5000x150 (NW/SE). Also many taxiways, landing aids, and an extended length parking apron.