Connection of transit routes at high altitude with Realdo

How to reach Realdo from the transit routes at high altitude, the Alta Via dei Monti Liguri, the Via Alpina, the Via del Sale etc… if you descend from the north east, from Mount Saccarello, you arrive at the Collardente pass where you find the connection to Realdo; if you go up from the south-east, from Colle Melosa and/or Cima Marta, at the bottom of Sanson you will find the connection to Realdo, with a path, as well as a road.