DOT Requirements for Erecting a Traffic Sign on a Roadway – This is a place for the community to provide tips and advice on DOT Requirements for Erecting a Traffic Sign on a Roadway. This topic was created by Magnus Ku 00f 6hl and the tips are provided by the community. The tips you add here can be your own or referred from another site. The best tips are then ranked at the top when up-voted by members of the community.