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Prehitro in nevarno vožnjo na cestah je treba ponekod umirjati z napravami in ukrepi za umirjanje prometa. Njihov primarni namen je omogočiti dobre življenjske pogoje z izboljšanjem varnosti, mobilnosti in udobja nemotoriziranega prometa, kar pa dosežemo z znižanjem hitrosti vozil in prometnih obremenitev na cestah. V magistrski nalogi sem naredila pregled slovenske tehnične specifikacije za umirjanje prometa TSC 03.800: 2009 Naprave in ukrepi za umirjanje prometa in rešitve, ki se uporabljajo v tujini. Ugotavljala sem ustreznost ukrepov na različnih kategorijah cest in njihovo učinkovitost pri znižanju hitrosti vozil, pretoka, hrupa in emisij ter zagotavljanja varnosti lažje ranljivih udeležencev v prometu. Podatke sem uredila v tabeli. Pregledala sem primere dobre prakse iz tujine in njihovo uporabo, nekaj izbranih sem idejno umestila v naše okolje in jih opisala – speed kidney (otoki za umirjanje), speed cushion (hitrostna grbina), road-diet (preureditev voznega pasu za namene pešcev in kolesarjev) in odstranitev sredinske črte. Na odseku Cankarjeve ulice v Črnomlju (LZ 054171), na mestu prehoda za pešce, sem na praktičnem primeru prikazala izvedbo dvostranske zožitve vozišča z izmeničnim enostranskim prometom (varianta A) in postavitev hitrostne naprave za umirjanje prometa speed kidney, ki se uporablja ponekod v tujini (varianta B). In some places, speeding and reckless driving on the roads sometimes needs to be moderated with traffic-calming devices and measures. Their primary purpose is to support good living conditions in residential and commercial areas by improving the safety, mobility, and comfort of non-motorized traffic participants. Latter is achieved by reducing vehicle speeds and volumes on streets or street networks. In the master's thesis, I reviewed the Slovenian technical specifications for traffic calming TSC 03.800: 2009 Traffic calming devices and measures, and measures and solutions used abroad. I determined the appropriate measures on different categories of roads and their effectiveness in reducing vehicle speed, volume, noise, emissions and ensuring the safety of more vulnerable participants in traffic. For better clarity, I prepared an overview table with this information. I reviewed examples of traffic calming from abroad and suggested the use of a few in our country – speed kidneys (traffic calming islands), speed cushions, road-diets (lane reduction), and centreline removals. In a practical example, I demonstrated traffic calming at the pedestrian crossing on a section of a local road Cankarjeva ulica (LZ 054171) in Črnomelj. Two variants were proposed – two-sided narrowing of the carriageway with alternating one-way traffic (variant A) and the installation of a speed kidney (variant B).

Vehicle speed is one of the main risk factors for road traffic safety. To increase the level of road safety, especially in urban areas, measures must be implemented to reduce vehicle speed. The installation of calming measures on a road network is systematically planned way to reduce driving speeds. This paper studies the effectiveness in terms of speed reduction of three types of traffic calming measures: 1) speed table, 2) chicane, and 3) road narrowing. The speed analyses regard a series of traffic calming measures located in urban contexts of Catania Province (Italy). For each of these traffic calming measures, experimental investigations were carried out relating to the measurement of speed. The study has shown that the speed tables represent the measure of traffic calming that guarantees the greatest conditioning on speed (it is also possible to halve the average speed). Even the chicanes have a significant impact on reducing speed, as well as the speed tables (average speed is reduced by up to 50%), while road narrowing allows maximum reductions in average speed of around 35%. Furthermore, all three traffic calming measures have resulted in a reduction of accidents always greater than 30%. In the case of speed tables, the reduction in accidents exceeds even 40%. The consequences of road accidents are also mitigated thanks to the traffic calming interventions considered. The reduction of injured people is between 32% (road narrowing) and 50% (chicane). The speed tables involve a reduction of almost 40% of injured people while fatal accidents are completely eliminated. Finally, it has been observed that the reduction in pedestrian injuries is between 33% (road narrowing) and 50% (speed tables). In the case of the chicane the reduction of injured pedestrians is 40%. The pedestrian fatal accidents in the road section in which the speed tables were subsequently installed have been reduced to zero.

V cestnem prometu prihaja, zaradi izvajanja gradbenih in vzdrževalnih del, kot tudi raznih prireditev, do začasnih ureditev prometa – cestnih zapor. V diplomskem delu so na začetku podana splošno znana dejstva o zaporah na javnih cestah. V nadaljevanju pa sta na konkretnem primeru cestnega odseka »Ključice« predstavljena dva načina začasne prometne ureditve s pomočjo semaforjev. Poudarek je namenjen izračunu parametrov za krmiljenje semaforjev. Narejena je analiza vpliva cestnoprometnih parametrov na rezultate signalnega programa, ter primerjava dveh lokacijsko in prometno-tehnično neodvisnih primerov cestnih zapor podobne dolžine. Performance of construction and maintenance work as well as various events sometimes cause temporary traffic regulations – carriageway blockage in road traffic. In the beginning, this diploma thesis outlines generally known facts about blockages on public roads. The following pages present two ways of temporary traffic regulation using traffic lights in the particular case of »Ključice« road section. Particular emphasis is placed on the calculation of parameters for controlling the traffic lights. An analysis has been made on the impact of road-traffic parameters on the results of the signal programme, and a comparison of two location and traffic-technical independent roadblock examples of similar length.