<p>This paper presents the analysis of the implementation of the Analytic Hierarchy Process (AHP) in solving problems in the area of transport. The transport sector is currently one of the most important sectors, and an efficient transport system requires continuous planning. Investments in transport infrastructure are projects that have specific characteristics. These projects have an extremely long lifetime (some thirty years), are not profit-oriented, are usually financed by the state of the local administration, and are primarily for social use. The decision-making process, which includes making decisions on investments, is extremely complex. The decision-maker has to envisage the future, and consequently make decisions in a modern and flexible manner. The methods used in the process of evaluating the investment projects in transport are numerous and usually distinguished by the optimization criteria. The projects can be evaluated through the prism of a single criterion or several criteria. The most common optimization criterion is the economic system; however, long-term and high-quality solutions require the introduction of other optimization criteria such as technological, technical, ecological and many others. Therefore, in such situations it is essential to implement multi-criteria decision methods which will eventually result in making the optimal decision. It will be determined in the paper to what extent the AHP method is implemented regarding transport problems and for which categories of transport problems.</p>

Level crossing (LC)

Given the high risk of severe accidents at level crossings (LCs), this study examined legal and illegal crossings by pedestrians and cyclists at a high-traffic LC in Zagreb, Croatia. Survey data and field observations were collected to identify reasons for risky behaviour. Behaviour was observed under normal conditions and in the presence of various safety measures in order to identify measures that can reduce risky behaviour. Results show that the presence of police officer at the LC was most effective at reducing illegal crossings, while the presence of cameras contributes significantly as well, especially after safety educational campaign when illegal crossing decreases for 59.23%. We can assume that in future the improvement regarding human behaviour on LC could be made with cameras on LC and more frequent educational campaigns. This is the first reported use of field survey and video surveillance methods to analyse user behaviour at LCs in Croatia.

Level crossings (LC’s) are one of the most dangerous points in railway traffic with frequent accidents that result in significant material damages and almost always fatalities. When level crossings are located within highly populated urban areas, they represent an even higher risk for accidents because of increased traffic volume for both the road and rail sectors. There are currently 34 level crossings in the City of Zagreb, some of which are on the roads with the highest traffic volume in the Republic of Croatia. Accident analyses on level crossings show poor traffic culture, especially pedestrians, which are intentionally disregarding traffic rules and showing poor judgment. This paper will show the existing condition and possible improvements of identified shortcomings of observed level crossings in the City of Zagreb and it will also present the existing level crossing regulations, classification, and safety on the railway network in the Republic of Croatia.

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