第四技術工作組:交通號誌與照明

研究各式公共道路使用者及車輛之照明及可視訊號及交通資訊要求。

Division 4: Lighting and Signalling for Transport

To study lighting and visual signalling and information requirements of transport and traffic, such as road and vehicle lighting, delineation, signing and signalling for all types of public roads and all kinds of users and vehicles, and visual aids for modes other than road transport.