Legend (DOI-Transport/AADT_Hosted)

S0 Less than 100 (0) S1 101 to 300 (1) T0 301 to 500 (2) T1 501 to 1500 (3) T2 1501 to 4500 (4) T3 4501 to 13500 (5) T4 13501 to 40000 (6) T5 More than 40000 (7)