I-Way platform integrates several independent sub-systems that work in with, so as to provide the whole I-Way functionality. It is composed of the in-vehicle subsystem and the external transport system.

1. The vehicle sensing module. It is responsible for the acquisition, processing and analysis of raw data coming from the on-board sensors.
2. The data acquisition module. It is responsible for the aggregation, combination and correlation of acquired information provided by the vehicle sensing module and by external sources.
3. The mobile interfaces of the vehicle. Through vocal and graphic interfaces drivers input and receive significant information regarding accurate traffic jam estimations, weather conditions, the road shape, speed and distance from a vehicle travelling ahead etc.
4. The situation assessment module. its purpose is to provide estimation of the road situation based on prior knowledge and incoming transient information.
5. The communication module which handles the real-time exchange of data among the vehicles with each other and between a specific vehicle and the Road Management system.

1. The Roadside equipment which is responsible for data acquisition referring to the road environment in locations where vehicles cannot precisely recognize dangerous conditions.
2. The Road Management System including an application and a database server which holds and manages the real-time road information.