Warning triangleIndonesia

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


214. Warning triangle

A warning triangle is a portable reflective safety device used to warn approaching traffic about a stopped, broken-down or crashed vehicle or another obstruction on the road. It should be placed far enough from the hazard to give other drivers time to react and should remain clearly visible. The required distance and situations in which a warning triangle must be used vary between countries, so drivers should know the local rules and keep the triangle easily accessible in the vehicle.

Portable reflective warning triangle.
Wikimedia.org • Roulex 45 • CC BY-SA
What is a warning triangle?

A warning triangle is a portable reflective device placed on the road to warn approaching traffic about a stopped vehicle, accident or other hazard.

When should a warning triangle be used?

It is generally used when a vehicle is broken down, involved in an accident or creating an obstruction. The exact legal requirements vary between countries.

How far from the vehicle should a warning triangle be placed?

The required distance depends on the country and type of road. Higher-speed roads usually require the triangle to be placed farther away so approaching drivers have more time to react.

Where should the warning triangle be placed?

Place it where it is clearly visible to approaching traffic and where doing so does not put you in unnecessary danger.

Should you use hazard warning lights as well as a warning triangle?

Often, yes. Hazard warning lights and a warning triangle can work together to make a stopped vehicle more visible. The legal requirements vary by country.

Should the warning triangle be easy to reach?

Yes. It is useful to keep it accessible without having to unload large amounts of luggage, especially because it may be needed quickly in a dangerous roadside situation.

1 Indonesia 2 Motorway 3 Speed limit 4 Bridge 5 Toll road 6 Slope 7 Roundabout 8 Pedestrian crossing 9 Railway crossing 10 Turn prohibition 11 School area 12 Curve 13 Priority at the next junction 14 Traffic lights 15 Driving licence 16 Parking 17 No parking 18 No stopping 19 Reversing 20 U-turn 21 Uncontrolled crossroad 22 Licence plate 23 Bus 24 Police 25 Ambulance 26 Pothole 27 Path 28 Particulates 29 Air pollution 30 Rush hour 31 Road code 32 Street gutter 33 Cargo bike 34 Forestry vehicle 35 Construction vehicle 36 Semi-trailer truck 37 Trolleybus 38 Speed pedelec 39 Delivery vehicle 40 Idling 41 Tow truck 42 Four-wheel drive 43 Bicycle 44 Motorcycle equipment 45 Rail track 46 Caravan 47 Trailer 48 Tow hitch 49 Fire truck 50 Siren 51 Convoy 52 Emergency vehicle lighting 53 Agricultural machinery 54 Electric bicycle 55 Electric vehicle 56 Pedelec 57 Quadricycle 58 Microcar 59 All-terrain vehicle 60 Van 61 Recreational vehicle 62 Scooter 63 Trikke 64 Personal mobility device 65 Skateboard 66 Segway 67 Kick scooter 68 Roller skates 69 Mailman 70 Hitchhiker 71 Toddler 72 Child 73 Disability 74 Rickshaw 75 Motorail 76 km/h 77 mph 78 Speedometer 79 Ride height 80 Dirt road 81 Driving 82 Start-stop system 83 Manual transmission 84 Automatic transmission 85 Throttle 86 Tachometer 87 Steering wheel 88 Power steering 89 Visual scanning 90 Mirror 91 Fuel 92 Fuel gauge 93 Petrol 94 Diesel 95 Diesel exhaust fluid 96 Car insurance 97 First aid kit 98 Fire extinguisher 99 High-visibility clothing 100 First aid ... 101 Concrete step barrier 102 Barriers 103 Vehicle lights 104 Street lights 105 Dipped beam 106 High beam 107 Fog lights 108 Front fog lights 109 Rear fog lights 110 Side lights 111 Turn signals 112 Hazard lights 113 Dashboard lights 114 Bicycle lighting 115 Bicycle bell 116 Headlight flashing 117 Seat belt 118 Child restraints 119 Head restraints 120 Airbag 121 ABS 122 Esp 123 Traction control system 124 Helmet 125 Bicycle helmet 126 Hands-free 127 Smartphone 128 GPS 129 Brake 130 Handbrake 131 Brake fluid 132 Tyres 133 Tyre code 134 Winter tyres 135 Tyre pressure 136 Snow chains 137 Bicycle tyre 138 Continuous track 139 Gross Vehicle Weight 140 Gross Vehicle Weight Rating 141 Cargo 142 Car body 143 Trunk 144 Roof rack 145 Windscreen 146 Emergency hammer 147 Car battery 148 Traction battery 149 Suspension 150 Shock absorber 151 Spring 152 Exhaust 153 Exhaust gas 154 Soot 155 Catalytic converter 156 Engine 157 Petrol engine 158 Diesel engine 159 Electric motor 160 Timing belt 161 Glow plug 162 Cylinder 163 Engine oil 164 Coolant 165 Maintenance 166 Spare tyre 167 Flat tyre 168 Jack 169 Vehicle inspection 170 Key 171 Dashboard 172 Windscreen wiper 173 Doors 174 Glovebox 175 Visibility 176 Rain 177 Fog 178 Hail 179 Sunlight 180 Sunglasses 181 Salt 182 Air conditioning 183 Hydroplaning 184 Distraction 185 Emotions 186 Road rage 187 Health 188 Epilepsy 189 Night blindness 190 Visual impairment 191 Fatigue 192 Defects 193 Traffic violation 194 Alcohol 195 Alcohol control 196 Ignition interlock device 197 Breath test 198 Breath analysis 199 Blood alcohol content 200 Blood test 201 Saliva test 202 Drugs 203 Medication 204 Penalties 205 Speeding 206 Smoking 207 Traffic enforcement camera 208 Double curve 209 Accident 210 Injuries 211 Nosebleed 212 Damage 213 Breakdown 214 Warning triangle 215 Traffic rules 216 Driving school 217 Traffic signs