This cycle track seems to exist, whole or part and referred by some nav progs as Strada Parco, BUT, beyond via Michelangelo is disappears into a cart track in well maintained farmland and soft soil tractor trail.  Many times on bike passing Via Fiume Tavo and the little shortcut off top of Via Magazzeno to Fiume Tavo never noticed the presence of a formal track. At a street proving to be called Galileo Galileo (streetsign) off a seemingly half abandoned industrial park there is a gravel track joining.
To be investigated.