U19 Temporary Sign – Temporary Diversion, 95x33 cm, Class I

U19 Temporary Sign – Temporary Diversion, 95x33 cm, Class I

The plain yellow diversion arrow, 95x33 cm, with class I retroreflective sheeting. At each junction it confirms to drivers that they are still on the detour route.

When class I is used

Class I means RA1 retroreflective sheeting, with 70 cd/(lx·m²) for white, suited to roads with low and medium speeds and few light sources. In areas with street lighting, shop windows and advertising, however, SR 1848-2 requires prismatic class 2 or 3 sheeting, and on a section already signed in class II the temporary sign cannot have a lower class either.

Where it goes, under SR 1848-1:2024

SR 1848-1:2024 uses this arrow at junctions along the traffic diversion route, to confirm the route to follow. The panel is mounted with its point towards the direction of the detour.

What the roadworks rules require (Order 1112/411/2000)

When traffic is diverted, the rules require the signing to start with the signs that mark out the diversion route, and only then the prohibition signs at the ends of the work section. The approval file also includes a sketch of the detour routes, with the direction signing for the diverted traffic. Here too, the rules require signs to be stood on the ground first, to check that they are clearly visible, and only then fixed to a support; no more than two signs go on the same support or side by side, and on one-way roads or bends they can be repeated on the left side or above the road.

On public roads, works are signed under the methodological rules approved by Order MI/MT no. 1112/411/2000. The road closure or traffic restriction is approved by the road authority, with the traffic police's agreement, on the basis of a signing layout endorsed as final, a copy of which the contractor keeps at the work site. The contractor installs, completes and maintains the signing for the whole job, removes it at the end and restores the original signing; accidents caused by incomplete or missing temporary signing are entirely the contractor's responsibility.

At night, if the existing signing on the road is retroreflective, the temporary signing must be retroreflective too and can be supplemented with flashing or sequential (“cascade”) amber lamps; on main and connecting streets in towns, retroreflective temporary signs are supplemented with flashing amber lamps.

Technical data

• 95x33 cm yellow arrow-shaped panel without an inscription;
• 1 mm galvanised steel sheet, with rounded corners and pressed edges, no sharp edges;
• electrostatically painted;
• class I retroreflective sheeting (RA1), with a 7-year service life;
• fixings included: 2 clamps for Ø48 mm posts and 4 bolts with nuts;
• 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.

95x33 cm is the size SR 1848-2 sets for this arrow on motorways; on national and other roads the standard calls for at least 60x20 cm, so the panel suits any road.