Advances in Aviation Safety Technical Session Schedule Thursday, September 11 Operations Safety (Session Code: SAFETY9) Room 512G  1:00 p.m. This session deals with operations safety in air as well as on airport runways, and involves free-flight safety on the one hand, and airport and human pilot simulation on the other. The first paper copes with collision avoidance in the context of free-flight, based on navigating along pre-specified waypoints, while the second paper redefines the philosphy of free-flight from a human factors perspective tackling among other things the effectiveness of higher level of automation such as predictive aids. The third paper deals with simulating pilot errors for safety enhancement, describing an application of activity tracking for pilot error detection from flight data and how the model is adapted for use by simulated pilot agents. The last paper copes with using simulation to develop effective runway incursion prevention strategies. Organizers - Kouamana Bousson, Univ. of Beira Interior; Ashley Nunes, Univ. of Illinois at Urbana-Champaign Time Paper No. Title 1:00 p.m. 2003-01-2996 Waypoint-Constrained Free-Flight Collision Avoidance Kouamana Bousson, University of Beira Interior 1:30 p.m. 2003-01-2997 ORAL ONLY Redefining the Philosophy of Free Flight from a Human Factors Perspective Ashley Nunes, Univ. of Illinois at Urbana-Champaign 2:00 p.m. 2003-01-2998 Detecting and Simulating Pilot Errors for Safety Enhancement Todd J. Callantine, San Jose State Univ / NASA Ames Research 2:30 p.m. 2003-01-2999 Using Simulation as An Effective Runway Incursion Prevention Strategy Lesley De Repentigny, Adacel The papers in this session are available in a single publication, CMALL and CMPHASE2, and also individually.