Cooperative Intelligent Transport Systems (C-ITS)

System Architecture

C-ITS employs a unique layered architecture that differs from traditional ISO OSI model by enabling direct cross-layer communication.

Key Architectural Features

  • Flexible Design: Adaptable to various implementation needs
  • Open Platform: Supports interoperability and third-party integration
  • Abstract Framework: Provides high-level system organization
  • Cross-layer Optimization: Enables direct information flow between layers
  • Future-proof Structure: Designed to accommodate emerging technologies

Cross-layer Communication

Unlike the traditional ISO OSI model, C-ITS allows:

  • Direct information transfer between non-adjacent layers
  • Reduced encoding/decoding overhead
  • Efficient data flow from lower to upper layers

V2X (Vehicle-to-Everything) Implementation Phases

Phase 1: Awareness Driving

Initial stage focusing on basic vehicle awareness and communication

Phase 2: Sensing Driving

Enhanced environmental perception and response capabilities

Phase 3: Cooperative Driving

Vehicles begin working together through coordinated actions

Phase 4: Synchronized Cooperative Driving

Advanced coordination enabling precise vehicle synchronization

Phase 5: Accident Free Driving

Ultimate goal of achieving zero accidents through complete system integration