Table 1 Travel speeds (miles per hour, mph) used in custom-built network datasets
From: Measuring geographic access to health care: raster and network-based methods
Road type | N1 | N2 | N3 | N4 | N5 |
|---|---|---|---|---|---|
Expressways | 70 | 60 | 60 | 62 | 65 |
Ramps | 25 | 25 | 25 | 25 | 20 |
City owned, major | 35 | 30 | 30 | 35 | 30 |
City owned, minor | 25 | 20 | 20 | 25 | 20 |
Private | 25 | 25 | 25 | 25 | 20 |
Minor collectors | 55 | 55 | 55 | 45 | 50 |
Rural arterials and major collectors | 55 | 55 | 55 | 45 | 50 |
Rural local | 45 | 45 | 45 | 45 | 40 |
Urban, state owned arterials and major collectors | 35 | 35 | 35 | 35 | 30 |
Urban, county owned arterials and major collectors | 45 | 45 | 45 | 45 | 40 |
Urban, state owned local | 35 | 35 | 35 | 35 | 30 |
Urban, county primary local | 55 | 55 | 55 | 45 | 50 |
Urban, county local | 25 | 25 | 25 | 25 | 20 |