Table 2: Geometric features of G109, Beijing.

Design indexesUnitsClass 2Class 3

Lane22
Section Origin to K28 + 560K28 + 560 to destination
Design speedkm/h6030
Paving widthm12.08.5
Shoulder widthm0.50.5
Lengthkm119.15
The minimum horizontal curve radius m10 (<60 m, 209 segments)
The maximum longitudinal gradient%9.49 (>5%, 87 segments)