SlopeSerbia
1. Slope
A slope is a section of road that rises or descends noticeably. A steep slope can affect vehicle speed, braking distance, traction, visibility and the ability of heavy or low-powered vehicles to maintain a steady speed.
Warning signs may indicate a steep ascent or dangerous descent and may show the gradient as a percentage. Drivers should adjust their speed early, select a suitable gear and remain prepared for slow vehicles, bends and changing road conditions.
What does a steep-slope warning mean in Serbia?
A steep slope requires speed adapted to the road and visibility. The Serbian Traffic Safety Law also addresses difficult meeting on steep roads.
Warning for a steep ascent.
English • Traffic sign I-3 • Dangerous ascent. Warns of a dangerous uphill section. The percentage matches the road's gradient.
Српски • I-3 • Опасан успон. Наилазак на опасан успон. Проценат на знаку одговара проценту успона на путу.
Sources
🔗 Commons.wikimedia.org (Gigillo83 • CC BY-SA 4.0)
🔗 Pravno-informacioni-sistem.rs • Правилник о саобраћајној сигнализацији • важећи текст • члан 18, тачка 3
🔗 Reg.pravno-informacioni-sistem.rs • Службени приказ • I-3
Image via Commons.wikimedia.org
Gigillo83 • CC BY-SA 4.0 • Source revision 2015-05-04. Wikimedia original unmodified.
Warning for a steep descent.
English • Traffic sign I-4 • Dangerous descent. Warns of a dangerous downhill section. The percentage matches the road's gradient.
Српски • I-4 • Опасна низбрдица. Наилазак на опасну низбрдицу. Проценат на знаку одговара проценту низбрдице на путу.
Sources
🔗 Commons.wikimedia.org (Gigillo83 • CC BY-SA 4.0)
🔗 Pravno-informacioni-sistem.rs • Правилник о саобраћајној сигнализацији • важећи текст • члан 18, тачка 3
🔗 Reg.pravno-informacioni-sistem.rs • Службени приказ • I-4
Image via Commons.wikimedia.org
Gigillo83 • CC BY-SA 4.0 • Source revision 2015-05-04. Wikimedia original unmodified.
How should I approach a steep descent in Serbia?
Reduce speed before the descent and select a suitable gear to help control the vehicle. Keep enough following distance and avoid building up speed that requires continuous heavy braking. A warning gives no fixed safe descent speed: the gradient, surface, visibility, load and vehicle can require a speed well below the legal maximum.
What should I check when meeting or overtaking on a slope in Serbia?
On a road signed as a dangerous ascent or descent where meeting is impossible or very difficult, the downhill vehicle normally stops at a suitable place. The uphill vehicle should use a suitable available place where that avoids reversing; additional rules determine which vehicle reverses when necessary.

Traffic rules
Serbia