This book constitutes the thoroughly refereed post-conference
documentation of the Fourth International Conference on Hybrid Systems
held in Ithaca, NY, USA, in October 1996. The volume presents 19
carefully revised full papers selected from numerous submissions. Hybrid
systems research focuses on modeling, design, and validation of
interacting systems (plants) and computer programs (control automata).
This volume is devoted to hybrid systems models, formal verification,
computer simulation, goal reachability, algorithms for extracting hybrid
control programs, and application models for avionics, highway traffic
control, and air traffic control.