Right Hand Turn Prohibited Permanent UK Road Sign
- Post Mountable with 2 fixing rails
- Class 2 R2/RA2 Reflective
- Available in 300mm, 600mm, 750mm, 900mm Disc
Diagram 612 is stops vehicles from turning right off a carriageway at a specified junction. This only applies to vehicular traffic and not pedestrians

Specification:
Material: R2/RA2 reflective overlay on aluminium composite backing
Fixing Method: 2 fixing rails for post mounting
Reflectivity: Class 2 R2/RA2
As per the UK Highways Traffic Sign Manual Chapter 3 - Regulatory Signs page: 27 The following advice is given:
4.2.5. At an unsignalled junction where a side road forms a T‑junction with a two‑way road (see Figure 4-6) and traffic is required to turn in one direction only, the use of a sign to diagram 606, even without a “One way” plate, could be misleading as drivers might think they are turning into a one‑way road. A sign to diagram 612 or 613 (S3‑2‑7 and 8 respectively, see Figure 4-8 COMPULSORY AND PROHIBITED MOVEMENTS 28 and Figure 4-9) should therefore be used at the junction, indicating the prohibited turn. Where a map‑type advance direction sign is provided in the side road, this should incorporate the “no right turn” or “no left turn” symbol (S12‑20‑19). Where appropriate, a sign to diagram 609 without a supplementary plate may be used in advance of the junction; this should not be necessary where there is an advance direction sign