Cattle Likely In Road Ahead Post Mounted Sign - Dia 548 R2/RA2 (Face Only)This Cattle in the road sign (otherwise known as diagram 548) warns drivers of an oncoming cattle crossing. This is a place on the road where a farmer will regularly transfer their cattle (cows) from one field to another, meaning drivers need to be cautious of their speed. The cattle crossing sign can be used with a supplementary plate detailing the distance where this sign applies. If you would like guidance on where this sign should be used refer to