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Število vozil na cestah neprestano narašča, vsakodnevne vožnje postajajo vse daljše, na cestah prihaja do zastojev, zgodijo se prometne nesreče s smrtnim izidom ali hujšimi telesnimi poškodbami, ki jim največkrat botruje človeški faktor – nepazljivost voznika. Za omejitev in preprečevanje prometnih nesreč skrbi na eni strani zakonodaja z ukrepi ozaveščanja in izobraževanja udeležencev v cestnem prometu, na drugi strani pa razvoj sodobnih tehnologij, ki pomagajo voznikom pri vožnji, njihovo delovanje pa je ocenjeno na podlagi testiranj. Poleg izboljšave motorjev, zavornih sistemov in karoserije sta zelo pomembna izboljšava in razvoj asistenčnih varnostnih sistemov, kot so aktivni asistenčni varnostni sistemi za pomoč vozniku. V diplomski nalogi smo se osredotočili na asistenčne varnostne sisteme ter podrobneje razložili delovanje in vlogo sistema avtomatskega uravnavanja razdalje ACC, ki preprečuje naletne prometne nesreče. Poudarili smo pomembnost tega sistema za varovanje varnosti in življenja ljudi ter nujnost uvedbe sistema ACC kot dela serijske opreme v vsakem vozilu. Izvedli smo anketo o poznavanju asistenčnih sistemov na splošno, posebej sistema ACC, in pridobili mnenja o pomembnosti asistenčnih sistemov kot serijske opreme v osebnem vozilu brez doplačila ter jo analizirali. The number of vehicles on the roads is constantly increasing, everyday commutes are getting longer, traffic jams occur regularly, traffic accidents with fatal outcome or serious injuries, most often caused by a human factor – due to drivers’ lack of attention – are also frequent. Legislation helps to limit and prevent traffic accidents by introducing measures for raising awareness and educating road users at the same time, the development of modern technologies, whose performance is evaluated based on tests, also greatly assists drivers on the road. In addition to improved engines, braking systems and bodywork, the improvements and developments of assistant safety systems, such as active driver-assistance systems, also play an important role. The diploma thesis focuses on assistant safety systems and further explains the functioning and role of the adaptive cruise control (ACC) system that prevents rear-end collisions. The importance of this system was emphasised, as it is crucial for the protection of safety and people’s lives, therefore it would be necessary to include the ACC system as part of standard equipment in each vehicle. We conducted a survey on general knowledge about assistive systems, in particular the ACC system, and obtained opinions on the importance of assistive systems as standard equipment in passenger cars without any surcharge and then analysed it.