100
24 April
7 April
14 April
80
4 April
10 April
21 April
17 April
60
20 March
27 March
40
24 March
20
Central Wisconsin Airport
Thaw Period 29 March to 10 April
Location 2
0
5
0
5
10
15
20
25
Surface Temperature (C)
a. FWD location 2.
100
24 April
7 April
80
17 April
21 April
14 April
10 April
4 April
60
18 March
27 March
24 March
40
20
Central Wisconsin Airport
Thaw Period 29 March to 10 April
Location 19
0
5
10
15
20
25
30
Surface Temperature (C)
b. FWD location 19.
Figure 40. Change of transverse joint efficiency with surface temperature.
100
Central Wisconsin Airport
Transverse Joints
80
LLocaitoon202
ocat i n
LLocaitoon505
ocat i n
LLocaitoon909
ocat i n
60
LLocaitoon117
ocat i n 7
40
20
0
200
400
600
800
1000
1200
1400
Subgrade Modulus (MPa)
Figure 41. Effect of subgrade modulus calculated with ILLIBACK on transverse joint efficiency.
34
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