The FRB connecting roads that connect to the M90 via emergency crossovers here need looked at. They are down as service roads at present, but I would imagine they are actually part of the A9000 trunk road. Consider setting them to be A9000 primary roads with access=no. All it takes for them to become active is for the operating company to move the concrete barriers here, and near Scotstoun on the south side of the firth.