Possibilities of Enhancing Traffic System in City of Zagreb

Grad Zagreb je suočen s problemom dugogodišnjeg rasta stupnja motorizacije. Zbog velikog broja osobnih vozila javljaju se zagušenja na cestovnoj mreži osobito u vrijeme vršnog sata. Zagušenja uzrokuju vremenske i financijske gubitke i povećanje buke i emisija štetnih tvari. Kako bi se smanjili negativni utjecaji zagušenja, potrebna je promjena modalne raspodjele gradskih putovanja s osobnog vozila na održive oblike prijevoza. Niska operativna brzina tramvajskog podsustava u gradu Zagrebu smanjuje atraktivnost istog. Implementacijom sustava adaptivnog upravljanja prometa moguće je smanjiti zagušenja cestovne mreže i dati prioritet vozilima javnog gradskog prijevoza i hitnih službi. Tramvajski podsustav je dominantan u gradu Zagrebu, pa davanje prioriteta tramvajima na semaforizranim raskrižjima mogao bi povećati operativnu brzinu tramvajskog podsustava. Uvođenjem adaptivnih upravljačkih logika vremena putovanja se smanjuju, te se povećava opća razina usluge.The city of Zagreb is confronted with a long – lasting increasein motorization rate. City streets are saturated with private cars, therefore in peak hours most of the city road network is congested. Network congestion leads to time and financial losses, and with this state emission of air pollutants and noise reach their peak levels. Modal split change in favour of public transport and sustainable transport variations is a key measure to reduce negative effects on the environment. Low operating speed of light rail subsystem in the City of Zagreb presents a problem which is making that transport mode less attractive. By implementing adaptive traffic control systems it is possible to reduce congestion and give priority to public transport vehicles. Tram subsystem is the dominant mode in the City of Zagreb and therefore giving priority on signalized intersections to trams would increase operating speed of tram subsystem. The implementation of adaptive traffic control can reduce time travel, and increase level of service