- A78 between Routenburn Rd, Largs and North Ayrshire boundary, North Ayrshire (Grid ref NS192651)
- A78 between Inverclyde boundary and A770, Inverclyde (Grid ref NS199710)
- A78 between B7047 Chapelton Road and B7048, North Ayrshire (Grid ref NS200478)
- A78 between B7048 and roundabout at Southannan Sands coal terminal, North Ayrshire (Grid ref NS200503)
- A78 between B7025 Bath Street and Routenburn Rd, North Ayrshire (Grid ref NS202600)
- A78 between A760 and B7025 Bath Street, North Ayrshire (Grid ref NS206590)
- A78 between roundabout at Southannan Sands coal terminal and A760, North Ayrshire (Grid ref NS210577)
- A78 between Raod to Ardrossan Castle and B7047 Chapelton Road, North Ayrshire (Grid ref NS215450)
- A78 between A770 and road to factory site, Inverclyde (Grid ref NS223736)
- A78 between A738 and Raod to Ardrossan Castle, North Ayrshire (Grid ref NS230432)
- A78 between road to factory site and Flatterton Rd, Braeside, Inverclyde (Grid ref NS232745)
- A78 between Flatterton Rd, Braeside and B7054 Dunlop Street, Inverclyde (Grid ref NS246753)
- A78 between A738 and A738, North Ayrshire (Grid ref NS250423)
- A78 between A738 - Eglinton Road and A738, North Ayrshire (Grid ref NS265435)
- A78 between B7054 Dunlop Street and A8/A770, Inverclyde (Grid ref NS267760)
- A78 between A738 and A738, North Ayrshire (Grid ref NS280425)
- A78 between A737 and A738, North Ayrshire (Grid ref NS283425)
- A78 between A737 and A71, North Ayrshire (Grid ref NS331370)
- A78 between A71 and A737, North Ayrshire (Grid ref NS332398)
- A78 between A759 and B7080, North Ayrshire (Grid ref NS334350)
- A78 between A759 and LA boundary, South Ayrshire (Grid ref NS337337)
- A78 between B746 mid-junction and A759, South Ayrshire (Grid ref NS346320)
- A78 between A79 and B746 mid-junction, South Ayrshire (Grid ref NS352300)
- A78 between A77 and A79, South Ayrshire (Grid ref NS360287)