This table is from Final Facility Specific Speed Correction Factors, published in 2001 and available at http://www.epa.gov/otaq/models/mobile6/r01060.pdf. Page 3 of Final Facility Specific Speed Correction Factors states "Table 16 contains the MOBILE6 speed correction factors for freeways." Tier I Vehicles are not specifically mentioned.
| Avg. Speed (mph) | Total Hydrocarbons (THC) | Carbon Monoxide (CO) | Oxides of Nitrogen (NOx) | Non-Methane HC (NMHC) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Level 1 | Level 2 | Level 3 | Level 1 | Level 2 | Level 3 | Level 1 | Level 2 | Level 3 | Level 1 | Level 2 | Level 3 | |
| 7.1 | 2.71 | 2.65 | 2.15 | 1.73 | 1.61 | 2.19 | 2.26 | 1.81 | 1.50 | 2.87 | 2.75 | 2.14 |
| 10 | 1.71 | 1.71 | 1.63 | 1.29 | 1.27 | 1.52 | 1.40 | 1.28 | 1.18 | 1.69 | 1.73 | 1.62 |
| 15 | 1.08 | 1.10 | 1.20 | 1.02 | 1.04 | 1.08 | 0.94 | 0.98 | 1.00 | 1.00 | 1.09 | 1.20 |
| 19.6 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| 20 | 1.00 | 0.99 | 0.99 | 1.00 | 1.00 | 0.99 | 1.00 | 1.00 | 1.00 | 1.00 | 0.99 | 0.99 |
| 25 | 0.95 | 0.93 | 0.86 | 0.99 | 0.97 | 0.94 | 1.04 | 1.01 | 1.00 | 1.00 | 0.94 | 0.86 |
| 30 | 0.91 | 0.88 | 0.77 | 0.98 | 0.95 | 0.91 | 1.07 | 1.02 | 1.00 | 1.00 | 0.90 | 0.77 |
| 35 | 0.91 | 0.81 | 0.68 | 1.00 | 0.98 | 0.87 | 1.07 | 1.02 | 1.00 | 1.07 | 0.83 | 0.68 |
| 40 | 0.97 | 0.77 | 0.64 | 1.12 | 1.06 | 0.87 | 1.14 | 1.04 | 1.00 | 1.20 | 0.79 | 0.64 |
| 45 | 1.04 | 0.73 | 0.61 | 1.24 | 1.14 | 0.87 | 1.21 | 1.07 | 1.00 | 1.32 | 0.74 | 0.61 |
| 50 | 1.10 | 0.69 | 0.57 | 1.36 | 1.21 | 0.87 | 1.28 | 1.09 | 1.00 | 1.45 | 0.70 | 0.57 |
| 55 | 1.17 | 0.65 | 0.54 | 1.47 | 1.29 | 0.86 | 1.35 | 1.12 | 1.00 | 1.57 | 0.66 | 0.54 |
| 60 | 1.24 | 0.61 | 0.50 | 1.59 | 1.37 | 0.86 | 1.42 | 1.15 | 1.01 | 1.70 | 0.62 | 0.50 |
| 65 | 1.30 | 0.57 | 0.47 | 1.71 | 1.45 | 0.86 | 1.49 | 1.17 | 1.02 | 1.82 | 0.58 | 0.47 |
* Emission levels shown as Fwy emissions in Table 14. See Section 4.6.
