Overhaul of the St. Pölten junction (A1/S33)

Safer roads around St. Pölten

In the past two years, the road infrastructure between the St. Pölten junction and the northern exit leading to the carriageway to Krems was improved and enlarged. The requisite traffic engineering products were supplied by Forster.

Winter is a likely time for blockages of the A21 Vienna Outer Ring Motorway. At such times, the St. Pölten junction is an important alternative route that impacts on the entire region. But when traffic is heavy, critical situations snowball on the lanes to Vienna just before the junction. A second lane and hard shoulder are being built in order to improve conditions.

Dynamics in prism technology

The project included a revision of the routing along the A1 western motorway towards Vienna. The advance and exit direction signs were replaced by road sign gantries fitted with dynamic variable message signs of the prism type. These can now display blockages, closures and diversion routes. While the overhead signs were installed, the motorway police stopped the traffic flow for not more than 15 minutes at a time. To keep disruptions to a minimum, our fitters also worked at night.

Brackets for the Krems carriageway

Remedial maintenance work extended to the S33 carriageway to Krems. The slip road directional signs in both directions at the eastern exit point and at the St. Pölten junction on the lane to St. Pölten were dismantled and replaced by overhead brackets. The northern exit remained untouched with regard to directional signs.

Structural calculations included

The roadside signs, such as distance signs, overview signs and signs indicating cultural and touristic attractions, were renewed and some of them replaced by larger formats. The requisite structural calculations for the uprights and foundations were undertaken by Forster.