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Driving and walking speed values on highway networks and land cover
| Road class | 1st | 2nd | 3rd | 4th | substandard | Land cover | Hill |
|---|---|---|---|---|---|---|---|
| Speed(km/h) | 80 | 60 | 40 | 30 | 20 | 5 | 3 |
| Timea (min) | 0.0375 | 0.05 | 0.075 | 0.1 | 0.15 | 0.6 | 1 |
a Time is the minutes travelling through a cell (50 x 50 m) in each road class and land cover
