Graph References/Sources:
- Traffic Flows – Transport Infrastructure Ireland (TII) permanent counters
- Modal Split – 2016 census data
- Vehicle class proportions – Automatic Traffic Counter Nov 2019
- Freight – Transport Infrastructure Ireland (TII) permanent counters
- Bus Patronage – Bus Eireann
- Rail Patronage – Irish Rail
- Airport Patronage – National Transport Authority (NTA)
- Collisions – Road Safety Authority/Transport Infrastructure Ireland