Roadway Design Manual
- Computed using Superelevation Distribution Method 2.
- Superelevation may be optional on low-speed urban streets.
- Negative superelevation values beyond -2.0% should be used for low type surfaces such as gravel, crushed stone, and earth. However, areas with intense rainfall may use normal cross slopes on high type surfaces of -2.5%.
Last Document Correction:
July 31, 2008