A tracked sliding entrance gate has a steel rail set into the ground along which wheels on the base of the gate run. An RSJ is installed underneath the track to help support heavy vehicle traffic.
Advantages:
• They can span wider openings (as the gate is fully supported along its run)
• Relatively simpler mechanically
Disadvantages:
• The ground surface must be reasonably level
• The rail must be kept clear of debris (so for some sites this might need frequent attention)
