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Traffic jamGermany

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

Traffic signs
Traffic rules
Germany

80. Traffic jam

A traffic jam is a situation where traffic becomes heavily congested and vehicles move very slowly or stop for extended periods. Traffic jams are commonly caused by high traffic volumes, accidents, roadworks, lane closures or poor weather. Drivers should remain patient, keep a safe distance, avoid unnecessary lane changes and watch for motorcycles, emergency vehicles and sudden braking. Where lanes merge during congestion, local rules may require drivers to use a zipper-merging system.

Traffic jam
Variable-message sign warning of traffic congestion. (Germany)
Wikimedia.org • Flor!an • CC BY
What is a traffic jam?

A traffic jam occurs when traffic becomes congested and vehicles move slowly or remain stationary because the road cannot accommodate the normal flow of traffic.

What causes traffic jams?

Common causes include heavy traffic, accidents, roadworks, lane closures, bottlenecks and poor weather.

How should you drive in a traffic jam?

Keep a safe distance, avoid sudden braking and unnecessary lane changes, and remain alert for changing traffic conditions and emergency vehicles.

Should you change lanes frequently in a traffic jam?

Usually not. Frequent lane changes can disrupt traffic flow and increase the risk of collisions. Change lanes only when necessary and safe.

What is zipper merging?

Zipper merging is a system where drivers use all available lanes until a lane ends or becomes blocked and then merge alternately into the remaining lane.

Should you leave space for emergency vehicles in a traffic jam?

Yes. Many countries require or recommend drivers to create space for emergency vehicles when traffic becomes congested or stationary.

1 Germany 2 Motorway 3 Expressway 4 Residential area 5 Zone 6 Speed limit 7 Footpath 8 Bike path 9 Shared-use path 10 Pedestrian warning 11 Tunnel 12 Bridge 13 Cycling street 14 Pedestrian zone 15 Toll road 16 Customs 17 One-way traffic 18 Quay 19 Slope 20 Bus lane 21 Bus stop 22 Dead end 23 Stop sign 24 Give way 25 Roundabout 26 Priority road 27 Road narrowing 28 Priority over oncoming traffic 29 Give way to oncoming traffic 30 Pedestrian crossing 31 Railway crossing 32 Mandatory direction 33 School area 34 Overtaking 35 Crossing animals 36 Slippery road 37 Rockfall 38 Aircraft 39 Curve 40 Chevron 41 Wrong-way driving 42 Roadworks 43 Crosswind 44 Height limit 45 Width limit 46 Length limit 47 Weight limit 48 Radar speed sign 49 Selective barriers 50 Low-emission zone 51 Intersection direction sign 52 Priority at the next junction 53 Traffic lights 54 Traffic lights warning 55 Pedestrian lights 56 Road markings 57 Junction layout 58 Bike box 59 Speed feedback 60 Driving licence 61 Location marker 62 Countdown markers 63 Traffic mirror 64 Emergency telephone 65 International border 66 Pedestrian underpass 67 Cycling route 68 End of restriction 69 Parking 70 No parking 71 No stopping 72 Parallel parking 73 Park and ride 74 Kiss and ride 75 Parking meter 76 Parking disc 77 Disabled parking 78 Traffic management 79 Reversing 80 Traffic jam 81 Detour 82 Uncontrolled crossroad 83 Road surface 84 Exit 85 Horse riding 86 Provisional licence 87 Hazardous cargo 88 Emergency exit 89 Runaway truck ramp 90 Oversize load 91 Cycle highway 92 Carsharing 93 City limit 94 Gantry 95 Distance board 96 Breakdown bay 97 Hiking 98 Pavement parking 99 Road church 100 Tourist attraction ...