資訊可變標誌

的資訊可變標誌]]
資訊可變標誌（，簡稱CMS、VMS）是一種電子道路交通標誌，常運用於道路，為旅行者提供有關特殊事件的資訊。

參考資料
外部連結

• [http://tmcpfs.ops.fhwa.dot.gov/cfprojects/uploaded_files/CMS%20Operation%20and%20Messaging%20Handbook-Final%20Draft.pdf Changeable Message Sign Operation and Messaging Handbook] . Operations Office of Travel Management, Federal Highway Administration, August 2004. Retrieved 2009-12-07.
• [http://mutcd.fhwa.dot.gov/pdfs/2009r1r2/part2ithu2n.pdf Chapter 2L: Changeable Message Signs] . U.S. Manual on Uniform Traffic Control Devices, 2009 ed. with Revisions 1 and 2.