| SR 1848-1 code | B5 |
|---|---|
| Name in the standard | Priority for oncoming traffic |
| Type | Priority road sign |
| Shape and colours | 80 cm diameter disc, red border, white background, black arrow pointing down and red arrow pointing up |
| Size | Ø80 cm |
| Format (SR 1848-2) | Large |
| Material | Galvanised steel sheet, 1 mm |
| Construction | Rounded corners, pressed edges, no sharp edges |
| Painting | Electrostatic, UV-resistant paint |
| Retroreflective sheeting | Class II (RA2), prismatic, UV-resistant |
| Retroreflection (white, 0.2°/5°) | 250 cd/(lx·m²) |
| Sheeting service life | 10 years (SR 1848-2) |
| Fixings included | 2 clamps, 4 bolts with nuts |
| Post diameter | Ø48 mm (Ø60 mm on request) |
| Standards | SR EN 12899-1:2007, SR 1848-1:2024, SR 1848-2:2011, SR 1848-3:2011 |
| Marking | CE |
| Weight | 5 kg |
| Height | 80 cm |
The B5 in the large format, 80 cm across with class II prismatic sheeting, for narrow bridges and sections on national roads. The red arrow shows the direction that must wait.
Class II means RA2 prismatic sheeting, which sends back three to four times more light than class I sheeting. It matters on fast roads and wherever the sign is seen at an angle, and in areas with street lighting, shop windows and advertising SR 1848-2 explicitly requires it, alongside class 3. The sheeting has a guaranteed 10-year service life.
It goes 10–20 m before a section whose carriageway is narrower than 5.50 m, to require drivers travelling in the direction of the red arrow to give priority to oncoming vehicles. It is preceded by the A9, A10 or A11, and the B6 goes at the other end of the narrowing.
Fixings for the post are included: 2 clamps for Ø48 mm posts and 4 bolts with nuts; clamps for Ø60 mm posts are available on request. The bottom edge of the sign goes 1.50–2.50 m above the road or kerb, and the edge nearest the road 0.50–2.0 m from the road platform.
The post is ordered separately. For a fixed installation in a concrete foundation: the galvanised Ø48 mm post, 300 cm. For temporary use, with no foundation: the Ø48 mm tripod post, 120 cm. On concrete or paving, where you cannot dig: the Ø60 mm flange post, 300 cm, bolted down; for it, ask for the Ø60 mm clamps when you order.
The 80 cm diameter is the large format in SR 1848-2, for national roads; the normal 60 cm format with class I sheeting is the B5. The B6_II goes at the other end of the narrowing.
It is larger than the B5: Ø80 cm instead of the normal format, and the class II (RA2) prismatic sheeting returns three to four times more light, with a guaranteed 10-year service life instead of 7.
SR 1848-2 requires prismatic class 2 or 3 sheeting in areas with many light sources: street lighting, shop windows, advertising, dense urban areas. Elsewhere, class II is chosen for better visibility on fast roads and where the sign is seen at an angle.
The pack holds 2 clamps for Ø48 mm posts and 4 bolts with nuts. Clamps for Ø60 mm posts are available on request, a better fit for large signs or windy locations.
The post is ordered separately. For a fixed installation in a concrete foundation: the galvanised Ø48 mm post, 300 cm. For temporary use, with no foundation: the Ø48 mm tripod post, 120 cm. On concrete or paving, where you cannot dig: the Ø60 mm flange post, 300 cm, bolted down, for which you ask for the Ø60 mm clamps when you order.
The bottom edge of the sign goes 1.50–2.50 m above the road or kerb, and the edge nearest the road 0.50–2.0 m from the road platform. The sign must be visible from at least 50 m in built-up areas and 100 m outside them.
Yes. It is CE marked and complies with SR EN 12899-1:2007, the European standard for vertical road signs, and with SR 1848-1:2024, SR 1848-2:2011 and SR 1848-3:2011. The sheeting and the paint resist UV and weathering.
Yes. You order directly on the site, as an individual or a company, and pay by card or cash on delivery.
Yes. Every order comes with a tax invoice, issued to an individual or a company.
Yes. Public institutions find us in SICAP as S.C. ATTO REGAL S.R.L. Our company details are on the Purchase through SEAP / SICAP page.
We deliver by courier within 24-48 hours.
Yes. As a private individual you can return the product within 14 days of receiving it, as the law provides, and you get your money back within 14 days of telling us. Return shipping is paid by the customer. The full terms are on the Return policy page.
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Atto Trafic supplies complete road signage and safety equipment — signs, traffic signs, markings, parking barriers, speed bumps, mirrors, bollards and accessories.