S.R.T. 436 Francesca, Pazzera

Environmental impact study comparing four alignment options in the Valdinievole area.

The scheme is part of the east-west link between the municipalities of the Valdinievole, as an alternative to the existing S.R. 436 and S.R. 435 roads: a new alignment south of the existing roads and outside built-up areas, partly reusing existing stretches, with secondary branches serving the villages.

The study compares four options. The first matches the alignment of the 2002 regional preliminary design, with symmetrical widening of the SP22 in situ and a service road on the south side between the new roundabout and the Borra stream. The second widens the SP22 asymmetrically on the north side, between roundabout R1 and the via Biscolla roundabout. The third moves the widening off the existing alignment between roundabout R1 and the Tiro a Volo. The fourth repeats the third, adding a second roundabout R2 and a direct link between via Marconi and roundabout R1.