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ENGINEERING YOUR SAFETY
WWW.HIGHWAYCARE.COM
Rev. C
–
10/18
©2018 Highway Care Limited. All Rights Reserved.
Page
11
of
61
Standard
–
NCHRP 350 TL-3
Below is a table showing the expected deflections of the TL-3 BG800 system if impacted at various
angles and various speeds with a 2000kg Truck (60.0m Between Anchors).
Impact Speed
(mph)
Impact Speed
(km/h)
Deflection (m)
5˚
10˚
15˚
20˚
25˚
25
40
0.01
0.04
0.10
0.17
0.27
31
50
0.02
0.07
0.16
0.27
0.42
37
60
0.03
0.10
0.22
0.39
0.60
40
64
0.03
0.12
0.26
0.45
0.69
43
70
0.03
0.14
0.31
0.53
0.82
50
80
0.05
0.18
0.40
0.70
1.07
56
90
0.06
0.23
0.51
0.88
1.35
60
97
0.07
0.26
0.58
1.02
1.55
62
100
0.07
0.28
0.62
1.09
1.66
Standard
–
NCHRP 350 TL-4
Below is a table showing the expected deflections of the TL-4 BG800 system if impacted at various
angles and various speeds with an 8000kg Truck (60.0m Between Anchors).
Impact Speed
(mph)
Impact Speed
(km/h)
Deflection (m)
5˚
10˚
15˚
20˚
25˚
25
40
0.05
0.21
0.46
-
-
31
50
0.08
0.32
0.71
-
-
37
60
0.12
0.46
1.03
-
-
40
64
0.13
0.53
1.18
-
-
43
70
0.16
0.63
1.40
-
-
50
80
0.21
0.82
1.82
-
-