The era of intensive construction of new roads in Croatia is behind us. Today road agencies are focused on maintaining and preserving existing roads. Selection of an appropriate maintenance strategy is a complex task, which includes factors such as the current condition of the pavement, road classification, traffic volume etc. These factors are usually implemented in pavement management systems. The key components of pavement management systems are pavement performance prediction models such as artificial neural networks. This paper analyses the possibility of using artificial neural networks to evaluate existing pavement condition, and its possible application for defining the maintenance strategy of national roads. A backpropagation neural network was applied on 481.3 km of national roads in the Osijek-Baranja County. The obtained results indicated that artificial neural networks could be used for optimization of maintenance or rehabilitation strategies, and for the assessment of pavement condition at the project and network level.
Noise pollution is a major environmental problem in urban spaces worldwide. The first step toward noise abatement is determining and evaluating noise levels in order to best prioritize and implement protective measures. The city of Osijek, as is obligated by law and the European Directive, has done this by creating a noise map. In this paper, we present measures for noise abatement, showing some of the measures implemented in Osijek based on their noise map, and review possible methods for abating noise in the most vulnerable areas.Keywords: noise abatement, noise maps; noise barriers; Osijek MJERE ZA SMANJENJE PROMETNE BUKE NA PRIMJERU GRADA OSIJEKA Sažetak: Zagađenje bukom danas je jedan od glavnih, u svijetu prisutnih problema zagađenja okoliša i urbanog prostora. Prvi korak ka smanjenju razina buke je utvrđivanje i ocjena razina buke kako bi se mogli definirati prioriteti za provedbu mjera zaštite. Grad Osijek, budući da je dužan prema Zakonu o zaštiti od buke i Direktivi Europskog parlamenta, izradio je kartu buke koja prikazuje razine buke i njihovu prostornu distribuciju. Ovaj rad prikazuje mjere za zaštitu od buke te neke od mjera provedene u gradu Osijeku i, na osnovu stanja utvrđenog kartom buke, razmatra mogućnosti provedbe mjera za zaštitu od buke najugroženijih područja.Ključne riječi: smanjenje buke; karte buke; barijere za zaštitu od buke; grad Osijek
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