BridgeAustralia

Learn traffic rules with clear explanations and visual examples in our illustrated book, designed to make studying simple and engaging.


8. Bridge

A bridge is a structure that carries a road, path or railway over an obstacle such as a river, valley, railway line or another road. A road bridge may carry one or more roadways together with pedestrian or cycling facilities.

Drivers should follow any speed, weight, height, width or vehicle-access restrictions applying to the bridge. Particular care may be necessary on narrow, exposed or movable bridges and when weather conditions such as wind, rain or ice affect the road surface.

Bridge
Over-height detection gantry with rubber cylinders that hit top of vehicle if too high. (Australia)
Wikimedia.org • Helicode • CC BY-SA
What is a bridge?

A bridge is a structure that carries a road, path or railway over an obstacle such as a river, valley, railway or another road.

Can a bridge carry several traffic lanes?

Yes. Road bridges may carry one or several traffic lanes and can also contain pavements, cycle facilities or public-transport infrastructure.

Can a bridge have a weight limit?

Yes. A bridge may have restrictions on the maximum vehicle mass or axle load that it can safely accommodate. Drivers of heavy vehicles must obey the applicable signs.

Can a bridge have a width or height restriction?

Yes. Narrow bridges or structures forming part of a bridge can have width, height or other dimensional restrictions indicated by traffic signs.

What is a movable bridge?

A movable bridge is a bridge that can open, lift, swing or otherwise move to allow ships or other traffic to pass beneath or through it.

What should you do when a movable bridge is opening?

Stop when required by the traffic lights, barriers or other signals and remain behind the designated stopping point until the crossing is reopened.

Can bridges become slippery?

Yes. Bridge surfaces can become wet, icy or slippery and may sometimes cool differently from the surrounding road. Drivers should adapt their speed to the actual conditions.

Can strong winds be dangerous on a bridge?

Yes. Exposed bridges can be affected by crosswinds, particularly for motorcycles, bicycles, high-sided vehicles and vehicles towing trailers.

Can you stop or park on a bridge?

This depends on the local traffic rules, road layout and signs. Stopping or parking may be prohibited where it would create danger, obstruct traffic or reduce the available road width.

Can pedestrians and cyclists use a bridge?

Yes, where permitted. Bridges may provide pavements, cycle paths or shared facilities, while high-speed or restricted bridges may prohibit certain road users.

Can traffic be restricted to one direction on a narrow bridge?

Yes. Priority signs, traffic lights or other traffic-management measures may control which direction passes first where two-way traffic cannot safely meet.

Should you overtake on a narrow bridge?

Only when overtaking is legal and clearly safe. Limited width or visibility can make overtaking inappropriate even where no specific prohibition is shown.

1 Australia 2 Motorway 3 Residential area 4 Speed limit 5 Advisory speed 6 Bike path 7 Pedestrian warning 8 Bridge 9 Speed bump 10 Toll road 11 One-way traffic 12 Slope 13 Bus stop 14 Stop sign 15 Give way 16 Roundabout 17 Pedestrian crossing 18 Railway crossing 19 Mandatory direction 20 Turn prohibition 21 School area 22 Crossing animals 23 Slippery road 24 Curve 25 Chevron 26 Wrong-way driving 27 Height limit 28 Radar speed sign 29 Selective barriers 30 Traffic lights 31 Traffic lights warning 32 Pedestrian lights 33 Road markings 34 Left-hand traffic 35 Driving licence 36 Location marker 37 Emergency telephone 38 No parking 39 No stopping 40 Disabled parking 41 Traffic management 42 Reversing 43 U-turn 44 Uncontrolled crossroad 45 Oversize load 46 Licence plate 47 Charging station 48 Local traffic 49 Moped 50 Truck 51 Bus 52 Police 53 Ambulance 54 Pothole 55 Path 56 Particulates 57 Air pollution 58 Rush hour 59 Road code 60 Two-way traffic 61 Street gutter 62 Cargo bike 63 Forestry vehicle 64 Construction vehicle 65 Semi-trailer truck 66 Trolleybus 67 Speed pedelec 68 Delivery vehicle 69 Idling 70 Tow truck 71 Four-wheel drive 72 Bicycle 73 Motorcycle equipment 74 Tram 75 Rail track 76 Caravan 77 Trailer 78 Tow hitch 79 Fire truck 80 Siren 81 Convoy 82 Emergency vehicle lighting 83 Agricultural machinery 84 Electric bicycle 85 Electric vehicle 86 Pedelec 87 Quadricycle 88 Microcar 89 All-terrain vehicle 90 Van 91 Recreational vehicle 92 Scooter 93 Trikke 94 Personal mobility device 95 Skateboard 96 Segway 97 Kick scooter 98 Roller skates 99 Mailman 100 Hitchhiker ...