This book includes selected papers presented at the First International Conference on Smart Mobility Systems (ICSMS 2025), organized by the Institution of Electronics and Telecommunication Engineers (IETE), India, during April 26–27, 2025. The book covers various topics on AI-based agent for traffic and transportation systems, edge AI and 3D perception on smart mobility, multi-resolution simulation for service and interoperability, collaborative learning in traffic and transportation models, LiDAR in smart communication, intelligent multimodal transportation and logistics efficiency-leveraging advanced technologies to optimize operations, improve sustainability, and enhance user experience, next generation tolling systems using Global Navigation Satellite System (GNSS), and AI-based CCTV monitored surveillance.