ENGINEERING YOUR SAFETY
WWW.HIGHWAYCARE.COM
Rev. C
–
10/18
©2018 Highway Care Limited. All Rights Reserved.
Page
5
of
61
Design Considerations
Median & Roadside Applications
BG800 can be impacted from either side of the
barrier with no difference in performance.
Therefore, the barrier can be used in both
roadside and median/bi-directional traffic
applications.
Length
The permissible length of the system is
unlimited but the barrier must be anchored at
the end of each run and intermediately as
required by the system type.
The minimum recommended installed length of
BG800 is 18m between inner anchor shoes; i.e.
for an installation with no approved crash
cushion connected to the end terminal, the
minimum total system length including
terminals and anchors is 30m.
Note: Please refer to acceptance conditions which
may differ to the above recommendations.
Curves
Various degrees of movement can be achieved
using the following components.
•
0.67
˚ at the QuickLink joint
•
5
˚ at the 6m slotted plates joint
•
5˚ radius section
•
10˚ radius section
Examples of achievable curves can be found in
the Curved Barrier section of this manual.
Environment
BG800 should not be installed where there are
fixed objects that may affect performance of the
barrier if impacted.
Slopes
For the system to perform correctly, it should be
installed on ground that has a cross slope of no
more than 8%. When installing the BG800 Gate
we recommend this maximum cross slope
should be reduced to 5% to allow controlled
manual operation of the gate.
Note: extreme care must be taken when opening a
gate on a slope as the gate can move under its own
weight.
The maximum incline and decline that BG800
can typically achieve is demonstrated in the
images below which shows a 6m section with
bolted slotted plates.
