A fusion-based system for road-network traffic state surveillance: a case study of Shanghai

摘要

The acquisition of accurate traffic states in real time is fundamental to building Urban Advanced Traveler Information Systems (UATIS). For this purpose, various sensors (e.g., loop detectors, probe vehicles, cameras, cell phones) are used to collect required traffic information. However, it is difficult to provide complete, accurate and reliable traffic information using only one type of sensor due to the various disadvantages particular to each type.