| 1 | Fixed Steel Bollard | Building entrances, pedestrian streets, plazas, and permanent access-control areas | Carbon steel or stainless steel with galvanized or powder-coated finish | Permanently fixed | Height: 600–1,200 mm; diameter: 76–219 mm | Provides a continuous physical barrier against unauthorized vehicle access; reflective bands may improve night visibility | Low; inspect coating, anchors, and corrosion periodically |
| 2 | Removable Bollard | Fire lanes, event venues, temporary restricted zones, and shared pedestrian areas | Stainless steel, carbon steel, or ductile iron | Manual removal from a ground sleeve | Height: 600–1,000 mm; diameter: 76–168 mm | Allows authorized vehicles to pass when required while maintaining access restriction at other times | Low to medium; clean sleeves and check locking mechanisms |
| 3 | Retractable Manual Bollard | Residential compounds, parking entrances, campuses, and private roads | Galvanized steel or stainless steel | Manual lifting, lowering, or telescopic movement | Height: 450–900 mm; diameter: 100–220 mm | Provides flexible vehicle control without electrical infrastructure; locking pins or keys prevent unauthorized operation | Medium; lubricate moving parts and inspect locks |
| 4 | Automatic Hydraulic Bollard | Government facilities, airports, embassies, logistics entrances, and high-security sites | Stainless steel or coated structural steel with hydraulic components | Hydraulic drive controlled by access system, remote control, or signal input | Height: 600–900 mm; diameter: 168–275 mm | Supports frequent operation and controlled vehicle access; can integrate with card readers, license-plate recognition, and emergency release systems | Medium to high; inspect hydraulic fluid, seals, drainage, and control equipment |
| 5 | Automatic Electromechanical Bollard | Commercial parking facilities, office parks, hotels, and urban access points | Stainless steel or powder-coated steel with electric actuator | Electric motor, screw drive, or linear actuator | Height: 500–800 mm; diameter: 114–219 mm | Suitable for automated access control; commonly paired with induction loops, barriers, intercoms, or smart parking systems | Medium; inspect motor, limit switches, wiring, and drainage |
| 6 | Crash-Rated Security Bollard | Critical infrastructure, transport hubs, data centers, and protected building perimeters | Heavy-wall steel, reinforced concrete foundation, and high-strength structural components | Fixed or automatic, depending on security design | Height: 700–1,200 mm; diameter: 219–355 mm or engineered equivalent | Designed to resist vehicle impact when tested to a specified performance rating; foundation depth and spacing are critical to performance | Medium; inspect structure, welds, anchors, finish, and impact damage |
| 7 | Flexible Polyurethane Bollard | Parking lots, warehouse yards, traffic islands, and low-speed vehicle guidance areas | UV-resistant polyurethane or flexible polymer | Fixed with anchor bolts; flexes or returns after minor contact | Height: 450–1,000 mm; diameter: 80–200 mm | Reduces damage from low-speed contact and improves lane guidance; often supplied with reflective collars | Low; replace when severely deformed, torn, or no longer visible |
| 8 | Water-Filled Plastic Bollard | Road works, temporary diversions, construction sites, and public events | High-density polyethylene or impact-resistant plastic | Portable; stabilized with water or sand ballast | Height: 800–1,200 mm; base width: 300–600 mm | Fast deployment and removal; high-visibility colors and reflective strips support temporary traffic management | Low; check for leaks, deformation, contamination, and damaged reflectors |
| 9 | Flexible Traffic Delineator Post | Road shoulders, lane separation, parking guidance, and temporary traffic channels | Flexible PVC, polyurethane, or rubber compound | Fixed, weighted, or surface-mounted | Height: 750–1,500 mm; diameter: 60–120 mm | Improves visual separation rather than providing strong vehicle restraint; reflective sheeting enhances recognition at night | Low; clean reflective surfaces and replace damaged posts |
| 10 | Chain-Linked Pedestrian Bollard | Parks, campuses, market areas, parking boundaries, and pedestrian circulation zones | Steel, stainless steel, aluminum, or cast iron | Fixed posts connected by removable or permanent chains | Height: 700–1,100 mm; diameter: 60–150 mm; spacing: commonly 1,500–2,500 mm | Creates a visible pedestrian boundary and discourages casual vehicle entry while preserving visual openness | Low; inspect chains, hooks, anchors, and surface coating |