| Variable | DESCRIPTION | Type | Begin Colum | End Column |
|---|---|---|---|---|
| STID | FIPS state code | I2 | 1 | 2 |
| CYID | FIPS county code | I3 | 3 | 5 |
| LINKID | Link Identifier | I10 | 6 | 15 |
| SPEEDFLG | daily or hourly speed flag (D or H) | A1 | 16 | 16 |
| SPDDAY | daily average speed (miles/hour) | F4.1 | 17 | 20 |
| SPDHR01 | hourly average speed for end hour 1 (miles/hour) | F4.1 | 21 | 24 |
| SPDHR02 | hourly average speed for end hour 2 (miles/hour) | F4.1 | 25 | 28 |
| SPDHR03 | hourly average speed for end hour 3 (miles/hour) | F4.1 | 29 | 32 |
| SPDHR04 | hourly average speed for end hour 4 (miles/hour) | F4.1 | 33 | 36 |
| SPDHR05 | hourly average speed for end hour 5 (miles/hour) | F4.1 | 37 | 40 |
| SPDHR06 | hourly average speed for end hour 6 (miles/hour) | F4.1 | 41 | 44 |
| SPDHR07 | hourly average speed for end hour 7 (miles/hour) | F4.1 | 45 | 48 |
| SPDHR08 | hourly average speed for end hour 8 (miles/hour) | F4.1 | 49 | 52 |
| SPDHR09 | hourly average speed for end hour 9 (miles/hour) | F4.1 | 53 | 56 |
| SPDHR10 | hourly average speed for end hour 10 (miles/hour) | F4.1 | 57 | 60 |
| SPDHR11 | hourly average speed for end hour 11 (miles/hour) | F4.1 | 61 | 64 |
| SPDHR12 | hourly average speed for end hour 12 (miles/hour) | F4.1 | 65 | 68 |
| SPDHR13 | hourly average speed for end hour 13 (miles/hour) | F4.1 | 69 | 72 |
| SPDHR14 | hourly average speed for end hour 14 (miles/hour) | F4.1 | 73 | 76 |
| SPDHR15 | hourly average speed for end hour 15 (miles/hour) | F4.1 | 77 | 80 |
| SPDHR16 | hourly average speed for end hour 16 (miles/hour) | F4.1 | 81 | 84 |
| SPDHR17 | hourly average speed for end hour 17 (miles/hour) | F4.1 | 85 | 88 |
| SPDHR18 | hourly average speed for end hour 18 (miles/hour) | F4.1 | 89 | 92 |
| SPDHR19 | hourly average speed for end hour 19 (miles/hour) | F4.1 | 93 | 96 |
| SPDHR20 | hourly average speed for end hour 20 (miles/hour) | F4.1 | 97 | 100 |
| SPDHR21 | hourly average speed for end hour 21 (miles/hour) | F4.1 | 101 | 104 |
| SPDHR22 | hourly average speed for end hour 22 (miles/hour) | F4.1 | 105 | 108 |
| SPDHR23 | hourly average speed for end hour 23 (miles/hour) | F4.1 | 109 | 112 |
| SPDHR24 | hourly average speed for end hour 24 (miles/hour) | F4.1 | 113 | 116 |