The scope of this volume centers on advancements in the state of art and the state of the practice in computer-aided systems in public transport. Yet, this volume illustrates a greater breadth of subjects in this area. The common theme remains the use of computer-aided methods and operations research techniques to improve: (1) information management; (2) network and route planning; (3) vehicle and crew scheduling and rostering; (4) vehicle monitoring and management; and, (5) practical experience with scheduling and public transport planning methods. This volume consists of selected papers presented at the Ninth International Conference on Computer-Aided Scheduling of Public Transport.