Roundabout Ahead UK Road Sign 

- Post Mountable with 2 fixing rails

- Class 2 R2/RA2 Reflective

- Available in 450mm, 600mm, 750mm, 900mm Tri

The roundabout ahead sign is one of the most common junction signs in the UK. Warning road users of the roundabout that they are approaching. The 510 diagram has no variation. 

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 4 - Warning Signs page: 18 The following advice is given:

2.4.1.  The sign to diagram 510 (S2‑2‑7, see Figure 2-8) should not be used to indicate the approach to a roundabout where adequate warning is conveyed by a map‑type advance direction sign or where the roundabout is clearly visible to approaching drivers. It may be used with supplementary plates to diagram 511 (S2‑3‑1), 513.1A (S2‑2‑4) or a distance. “Adverse camber” may be used in place of the 513.1A lorry adverse camber plate. The roundabout warning sign should be used only for true roundabouts. It should not be used to give advance warning of a gyratory system or where the approach to an otherwise standard roundabout is controlled by signals.