Experimental-Numerical Study of Indexation of Scenic Road Vertical Alignment in China

Table 1

MLS and LSL used in current rural road design criteria in China.

Operation velocity (km/h)	120	100	80	60	40	30	20
MLS (%)	3	4	5	6	7	8	9
Longitudinal slope (%)	LSL (m)
3	900	100	1100	1200	—	—	—
4	700	800	900	1000	1100	1100	1200
5	—	600	700	800	900	900	1000
6	—	—	500	600	700	700	800
7	—	—	—	—	500	500	600
8	—	—	—	—	300	300	400
9	—	—	—	—	—	200	300
10	—	—	—	—	—	—	200