Selective barriersNetherlands

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25. Selective barriers

Selective barriers are physical access-control devices that allow certain road users or authorised vehicles to pass while restricting other traffic. They may include fixed, removable, folding or retractable bollards, gates, barriers and width-filtering installations.

The permitted users are determined by traffic signs, access conditions and local regulations, not by the barrier alone. Drivers should approach slowly, verify that they are authorised and wait until any moving barrier is fully open or retracted before continuing.

Selective barriers
Bus trap with a traffic sign in the Tanthof district. (Delft, Netherlands)
Wikimedia.org • Michiel1972 • CC BY-SA
What is a selective barrier?

A selective barrier is a physical access-control device that blocks some traffic while allowing specified road users or authorised vehicles to pass.

What types of selective barriers exist?

Common examples include fixed bollards, removable posts, folding posts, retractable bollards, gates, rising barriers and width-filtering installations.

Why are selective barriers used?

They may prevent through traffic, protect pedestrian or cycling routes, control access to restricted areas or allow only residents, public transport, deliveries or emergency services to enter.

Does the barrier itself determine who may pass?

Not normally. The permitted users are determined by traffic signs, permits, access systems and local regulations.

May cyclists pass through a selective barrier?

Only when cycling is permitted and sufficient safe space is provided. Cyclists must follow the signs applying to the road or path.

May pedestrians pass through?

Pedestrians may pass where pedestrian access is permitted and a safe route is available. They should not walk beneath a moving gate or through a vehicle-only opening.

May motorcycles pass between bollards?

Only when motorcycles are legally permitted beyond the barrier and the opening is intended for them. Being physically able to fit through does not create permission.

May emergency vehicles pass?

Emergency vehicles may have keys, remote controls, automatic recognition or another authorised method of opening the barrier. Other road users must keep the access clear.

May residents or delivery vehicles enter?

They may enter only when local access rules, permits or traffic signs authorise them. Permission may apply only during specified hours.

What is a retractable bollard?

A retractable bollard is a post that can rise from or lower into the road surface to control vehicle access.

How may a retractable bollard be activated?

It may operate through a badge, remote control, access code, number-plate recognition, timer, control centre or automatic detection system.

When may you drive over a retractable bollard?

Only after confirming that you are authorised and the bollard is fully lowered. Do not move merely because another vehicle has activated it.

May you follow another authorised vehicle through?

No, unless your own access is also authorised and the system clearly permits it. The barrier may rise immediately after the first vehicle.

What do warning lights near a barrier mean?

Red lights normally require road users to stop, while another signal may indicate when passage is permitted. Follow the displayed signals and local instructions.

What should you do when the barrier is moving?

Stop at a safe distance and wait until it has completed its movement. Never drive, cycle or walk beneath a moving gate or across a rising bollard.

What if the barrier appears to be stuck?

Do not force, move or drive around it. Use the intercom or contact the operator, road authority or emergency service indicated at the location.

May you move a removable bollard yourself?

No, unless you are specifically authorised. Removing or repositioning access-control equipment may create danger and allow prohibited traffic to enter.

Does a lowered bollard mean everyone may enter?

No. Traffic signs and access restrictions remain applicable even when the physical barrier is temporarily open or lowered.

Does an open gate cancel a no-entry sign?

No. An open physical barrier does not cancel a regulatory traffic sign.

Does a selective barrier impose a speed limit?

Not by itself. Drivers must follow the applicable speed limit and approach slowly enough to stop before the installation.

Does it change priority?

No. Traffic lights, priority signs and ordinary priority rules remain applicable unless another traffic arrangement indicates otherwise.

May you stop or park in front of a selective barrier?

Do not stop or park where the vehicle would block authorised access, emergency services, pedestrians or cyclists.

Why are bollards dangerous for cyclists and motorcyclists?

They may be difficult to see, especially in darkness, congestion or poor weather. A collision can cause a rider to fall into nearby traffic or other obstacles.

How should cyclists approach bollards?

Reduce speed, identify the intended opening and pass through in a straight and controlled line. Avoid overtaking another cyclist at the barrier.

What should drivers do when leaving a restricted area?

Approach slowly, wait for the access system to respond and check for pedestrians and cyclists before crossing their route.

What if your vehicle strikes a barrier?

Stop safely, activate the hazard warning lights where appropriate and report the collision. Do not continue if the vehicle, barrier or access system may be damaged.

1 Netherlands 2 Motorway 3 Expressway 4 Residential area 5 Zone 6 Speed limit 7 Footpath 8 Bike path 9 Cycling street 10 Pedestrian zone 11 Slope 12 Bus stop 13 Dead end 14 Stop sign 15 Give way 16 Roundabout 17 Priority road 18 Railway crossing 19 School area 20 Overtaking 21 Crossing animals 22 Roadworks 23 Weight limit 24 Radar speed sign 25 Selective barriers 26 Low-emission zone 27 Priority at the next junction 28 Traffic lights 29 Traffic lights warning 30 Road markings 31 Speed feedback 32 Traffic mirror 33 Emergency telephone 34 Cycling route 35 Parking 36 No parking 37 No stopping 38 Park and ride 39 Kiss and ride 40 Parking disc 41 Disabled parking 42 Traffic management 43 Merging 44 Reversing 45 Uncontrolled crossroad 46 Advisory cycle lane 47 Rush-hour lane 48 Emergency exit 49 Oversize load 50 City limit 51 Parking zone 52 Axle weight limit 53 Licence plate 54 Charging station 55 Dangers 56 Equestrian trail 57 Cyclist 58 Truck 59 Bus 60 Police 61 Ambulance 62 Bicycle parking station 63 Tram lights 64 European emission standard 65 Pothole 66 Path 67 Particulates 68 Air pollution 69 Rush hour 70 Road code 71 Street gutter 72 Cargo bike 73 Forestry vehicle 74 Construction vehicle 75 Semi-trailer truck 76 Trolleybus 77 Speed pedelec 78 Delivery vehicle 79 Idling 80 Tow truck 81 Four-wheel drive 82 No vehicles 83 Bicycle 84 Motorcycle equipment 85 Rail track 86 Caravan 87 Trailer 88 Tow hitch 89 Fire truck 90 Siren 91 Convoy 92 Emergency vehicle lighting 93 Agricultural machinery 94 Electric bicycle 95 Electric vehicle 96 Pedelec 97 Quadricycle 98 Microcar 99 All-terrain vehicle 100 Van ...