Slope
A slope or grade of a road refers to the tangent of the angle of the road to the horizontal. It is a special case of the slope, where zero indic…
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Slippery road
Road slipperiness is a condition of low skid resistance due to insufficient road friction. It is a result of snow, ice, water, loose material an…
Siren
A siren is a sound signal that priority vehicles use to warn other road users that they have to pass.
Seatbelt
Anyone who participates in a passenger car in traffic must always wear the seatbelt or be protected by an adapted and approved security system, …
Safety
To improve the safety of the passengers and the driver, there are a number of safety systems in your vehicle. Below you will find the most impor…
