The National Centre for Traffic Management (NCUP) has available databases and data warehouses of traffic data. In addition to the databases and data warehouses, we also have a static and a dynamic national traffic model of Slovenia. Given that we have all the available traffic data and tools to produce traffic surveys, we have decided to periodically produce surveys related to traffic issues and publish them on the NCUP website.

The surveys produced so far are available for viewing at the following links.

Identification of traffic light intersections with impacts on traffic jams on the Ljubljana Highway ring

With this analysis we have identified, at which intersections traffic jams are formed that reach the highway and have an impact on traffic jams on the Ljubljana highway ring. Intersections are identified with graphic representation of the impact on congestion in rush hours.

241016_Identifikacija semaforiziranih križišč na AC obroču.pdf

Analysis of the estimated travel times in the days from Thursday, March 28, 2024 to Saturday, March 30, 2024

The analysis takes into account the impact of the forecast traffic load according to the traffic calendar prepared by DARS for 29.03.2024 (Friday before Easter Monday) and the days before and after - from Thursday, 28.03.2024 to Saturday, 30.03.2024 inclusive. Based on the results of this analysis, a procedure for conducting further traffic analyzes (forecasts) for other critical days of the year in accordance with the traffic calendar (DARS) will be established.

240322 Analiza petek pred veliko nočjo.pdf

Analysis of the impact of the expansion of the Štajerska and Primorska highway branches

The impact analysis of the expansion of the Štajerska and Primorska freeway branches is carried out in order to examine the impact of the expansion of the Štajerska and Primorska freeway branches provided for in the measure to reduce traffic congestion on freeways within the procedure of maintenance works for the public good. The analysis covers the final state after the implementation of the two planned stages. The analysis takes into account the load on an off-season working day, during the morning and afternoon traffic peaks.

240307 Analiza vpliva širitve štajerskega in primorskega AC kraka N1.pdf

Analysis of the impact of the expansion of the eastern and southern Ljubljana ring road and the Štajerska and Primorska motorway branches

The analysis deals with the impact of the expansion of the southern and eastern sections, the Ljubljana ring, with an additional traffic lane (TEN-T corridor), including the expansion of the Štajerska and Primorska highway branches. Off-season working day loads in the morning and afternoon peak hours are considered.

240307 Analiza vpliva širitve ljubljanske obvoznice in štajerskega in primorskega avtocestnega kraka N2.pdf

Analysis of the impact of closing the main road between Nova Gorica and Razdrti (H4) to freight traffic on an average day of the year

The analysis of the impact of the closure of the main road between Nova Gorica and Razdrto (H4) for freight traffic on an average day of the year was carried out using the Slovenian national macroscopic traffic model. The analysis was carried out to find out how the traffic volume will develop in the event of a closure of the H4 for freight traffic (this is one of the possible scenarios for the closure, and this scenario is also used in the event of Burja).

240131 Analiza prometa ob zapori H4 za tovorni promet.pdf

Analysis of the impact of traffic on one half of the main road between Nova Gorica and Razdrti (H4) on an average working day of the year

The analysis of the impact of traffic on one half of the H4 motorway between Nova Gorica and Razdrto on an average working day of the year, when traffic on one half of the H4 would flow in two directions with one lane in each direction, was carried out using the Slovenian national macroscopic traffic model. The analysis was carried out with the aim of finding out what impact the partial closure of the road between Nova Gorica and Razdrto (H4) will have on the traffic flow in the narrower area between Nova Gorica and Razdrti and whether it will affect the wider area up to the Ljubljana motorway ring road.

240126 Analiza vpliva izvajanja prometa po eni polovici H4.pdf

Analysis of the impact of the closure of Dunajska cesta on the renovation of the railway overpass in Ljubljana

The analysis of the impact of the closure of Dunajska cesta on the redevelopment of the railway overpass in Ljubljana was carried out using the national macroscopic traffic model of Slovenia. The analysis was carried out with the aim of finding out what impact the closure of Dunajska cesta has on the traffic flow in the narrower area of the centre of Ljubljana in the immediate vicinity of the closure or whether it has an impact on the wider area up to the Ljubljana motorway ring road.

231228 Analiza vpliva zapore Dunajske ceste ob sanaciji nadvoza železniške proge.pdf

Study on the methodology for calculating the annual time costs caused by congestion or the increase in travelling time on the entire road network in Slovenia

In the analysis Study on the methodology for calculating the annual time costs caused by congestion or the increase of travelling time on the entire road network, we have examined Slovenian legislation, which could set the starting points for the definition of congestion on the road network, the dictionary of Slovenian literary language, Slovenian professional literature and some foreign literature and, based on the results, calculated the value of time in delays per day and per year.

231229 Preučitev metodologije za izračun letnih stroškov ki jih povzročajo zastoji.pdf

The influence of the proximity of junctions on the density of traffic on motorways, with an emphasis on the Ljubljana ring

The analysis of the influence of the proximity of junctions on the density of traffic on motorways, with an emphasis on the Ljubljana ring road and its inbound branches, was made with the aim of determining whether reducing the number of junctions in a narrow area increases the flow of traffic on the motorway.

2311_VPLIV BLIŽINE PRIKLJUČKOV NA GOSTOTO PROMETA NA AVTOCESTAH.pdf

The effect of increase in passenger vehicle occupancy on highway traffic density

The analysis of the impact of the increase in the occupancy of passenger vehicles on the traffic density on the highways was made with the aim of finding out by how much the number of passenger vehicles on the roads would decrease if the number of people in the vehicles increased.

2311_VPLIV POVEČANJA ZASEDENOSTI OSEBNIH VOZIL NA GOSTOTO PROMETA NA AC.pdf

The influence of freight vehicles on traffic flows in the Kozarje junction

The analysis Impact of freight vehicles on traffic flows in the Kozarje junction area was made to determine the impact of freight traffic on traffic flow on the motorway, or the situation on the motorway in the absence of freight traffic (e.g.: freight traffic is diverted to the railway).

2310_POVEČANJE ŠTEVILA TOVORNIH VOZIL NA AVTOCESTNEM OMREŽJU.pdf

Increase in the number of freight vehicles on the highway network

The analysis Increase in the number of freight vehicles on the motorway network was made to find out by how much and on which sections of the motorway the share of freight vehicles has increased.

2310_POVEČANJE ŠTEVILA TOVORNIH VOZIL NA AVTOCESTNEM OMREŽJU.pdf

The influence of road closes on congestions in the area of Kozarje

Traffic flows and congestion on the motorway are also affected by conditions on local roads especially in case of partial or full road closures. Recently, it has been happening that these closures were simultaneously on several roads in a narrower area, resulting in traffic collapse.

2310_POVEČANJE ŠTEVILA TOVORNIH VOZIL NA AVTOCESTNEM OMREŽJU.pdf

The comparison of the traffic loads »Friday before the holiday«

The comparison of the traffic loads "Friday before the holiday" compared to "normal Fridays" with an emphasis on freight traffic is made with the aim of finding out what impact on traffic loads (mainly freight traffic) has holidays that fall on Monday.

2309_PRIMERJAVA_PROMETNIH_OBREMENITEV_PETEK_PRED_PRAZNIKOM.pdf