D6 Mandatory Sign – Pass on Either Side, Ø60 cm, Class I

D6 Mandatory Sign – Pass on Either Side, Ø60 cm, Class I

The D6 shows that the obstacle ahead can be passed on either side: the two white arrows, pointing down at an angle, go to the left and to the right.

When class I is used

Class I (RA1) sheeting returns 70 cd/(lx·m²) for white to the driver and has a 7-year service life, enough on roads where headlights are the only light: local, minor and private roads or quiet streets. In areas with street lighting, shop windows, advertising and dense urban traffic, however, SR 1848-2 requires prismatic class 2 or 3 sheeting. The class II version is the D6_II (Ø80 cm).

Where it goes, under SR 1848-1:2024

It goes at the ends of traffic islands, channelling islands and central reserves, or before another obstacle on the road, where vehicles must pass it on either side. Where there is no room for a sign of ordinary size, for example at tram-stop islands or at the ends of a double safety barrier between carriageways, small signs can be used.

As a general rule for mandatory signs, the obligation applies in the immediate vicinity of the sign, before or after the place where it stands, as the case may be.

Technical data

• 60 cm diameter disc (normal format, SR 1848-2): blue with two white arrows pointing down to the left and to the right;
• 1 mm galvanised steel sheet, with pressed edges, no sharp edges;
• electrostatically painted with UV-resistant paint;
• class I retroreflective sheeting (RA1), resistant to UV and weathering, with a 7-year service life;
• weight: 3 kg;
• fixings included: 2 clamps for Ø48 mm posts and 4 bolts with nuts;
• CE marked; compliant with SR EN 12899-1:2007, SR 1848-1:2024, SR 1848-2:2011 and SR 1848-3:2011.

Mounting and size

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 sign must be visible from at least 50 m in built-up areas and 100 m outside them.

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 60 cm diameter is the normal format in SR 1848-2, for county and local roads, streets and private roads open to public traffic. National roads call for the large Ø80 cm format and motorways for the very large Ø100 cm one; the standard forbids using a smaller format than the road category requires. The large Ø80 cm version with class II sheeting is the D6_II.