For my Diorama i made a Set of 3D Printable roadside barriers in HO scale.They are scaleable if you want. I used the Sectiondrawing of one of the Manufacturers for those barriers in Norway.The holes are for small wires to imitate the guide poles for snowplows.
Height: 9mmwidth at the base: 6mmstraight parts:length:~17.5mm~30.5mm~44mm~57.5mm with or without Rain Drainage
as well as an end piece45° piece
Only for Private Use. 3D files or 3D printed Models could not be given away for free or be sold!