"road design parameter file" means that you can input the parameters of each section of this road into this file first, and then the software will automatically call the design parameters in this file when calculating the earthwork, so it is not necessary to change the sections one by one.

for example, a road design parameter file "ZHD.txt" in the \CASS5\DEMO folder is as follows:

1, h = 89, I = 1: 1, w = 1, a = .2, WG = 1.5, Hg = .5

2, h. A=.2,WG=1.5,HG=.5

4,H=89,I=1:1,W=1,A=.2,WG=1.5,HG=.5

5,H=89,I=1:1,W=1,A=.2,WG=1.5,HG=.5

6,H=89,I=1:1,W=1,A=.2,WG=1.5,HG=.5

7, H = 89, I = 1: 1, W = 1, A = .2, WG = 1.5, Hg = .5 < P > 8, H = 89, I = 1: 1, W = 1, A = .2, WG = 1.5, Hg = . It can be seen that there are 9 cross sections. H= in each row represents the design elevation of the road cross section, I= represents the cross slope ratio on the left and right sides of the cross section, W= represents the road design width, A= represents the road design cross slope ratio, WG= represents the ditch width on both sides of the road, and HG represents the ditch height on both sides of the road.