Tested on 1.16.3.1s but may work on old version try it.
Here is Closed Road Warning Wall mod which change wall where is road end.ZIP file include two different colour combination
Yellow Red and Only Red colour like on pictures
Read instruction before do anything
Author: BLiNKT
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This mod is old, the author Nikon already loaded at this link: http: //ets2.lt/en/road-closed-and-warning-sign/#more-44245
I know for that mod but this is new one and author is me this mod include two different colour of wall like on pictures