| Variable | DESCRIPTION | Type | Begin Column | End Column |
|---|---|---|---|---|
| STID | FIPS state code | I2 | 1 | 2 |
| CYID | FIPS county code | I3 | 3 | 5 |
| LINKID | link identifier | I10 | 6 | 15 |
| AREATYPE | urban vs. rural classification | I1 | 16 | 16 |
| FACTYPE | facility type ID | I4 | 17 | 20 |
| CAPACITY | maximum usage in vehicle numbers | I6 | 21 | 26 |
| DISTANCE | actual length of link in miles | I5 | 27 | 31 |