The No Entry road sign (R3) is an R Series regulatory control sign used to prohibit vehicles from entering a specific road, lane, or area. It is commonly installed at one-way streets, restricted access points, and controlled traffic zones.
Purpose and function
This sign prevents wrong-way entry, reduces collision risk, and enforces access restrictions. It plays a critical role in maintaining orderly traffic flow and protecting road users from head-on and conflicting movements.
Typical applications
- One-way streets and carriageways
- Restricted or private access roads
- Service lanes, loading zones, and controlled entry points
- Areas where traffic must not enter under any circumstances
Commonly used with
- One-way roadway road sign (R4.1)
- Stop road sign (R1)
- Yield road sign (R2)
- No Left Turn road sign (R211)
Explainer guide
For an overview of how R Series regulatory control signs are used and grouped, see our
R1 Series Control road signs explainer
.
Materials and ordering notes
- Permanent road sign supplied on 1.2 mm Chromadek steel
- Class 1 retro reflective sign face, enquire if you require Class III
- Poles, clamps, nuts and bolts are not included, email us should you require a quote
- Remember to order the correct size clamps for the poles you will be using if ordering unistruts on your road signs
- Please confirm stock availability before ordering road signs
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