Naslov
Assessment of the effects of traffic infrastructure reconstruction and introduction of a pedestrian island as a traffic calming measure using traffic microsimulations

Autori
Ištoka Otković, Irena ; Deluka-Tibljaš, Aleksandra ; Šurdonja, Sanja ; Campisi, Tiziana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Road and Rail Infrastructure VII / Lakušić, Stjepan - Zagreb : Građevinski fakultet Sveučilišta u Zagrebu, 2022, 695-701

ISBN
978-953-8168-55-0

Skup
7th International Conference on Road and Rail Infrastructure (CETRA 2022)

Mjesto i datum
Pula, Hrvatska, 11.05.2022. - 13.05.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
reconstruction assessment ; pedestrian safety ; vehicle speeds ; traffic modeling ; VISSIM

Sažetak
The reduction in the traffic death rate in the EU has stagnated in recent years, and the goal of halving the number of fatalities in traffic from 2010 to 2020 has not been met yet. The long-term goal of achieving "Vision 0" requires a multidisciplinary approach and shared responsibility between transport infrastructure that "forgives mistakes", traffic regulation, vehicle automation, and traffic participants. At pedestrian crossings of the local roads, which do not have traffic lights, reducing the speed of vehicles by applying a traffic sign has not proved to be an effective solution. Vehicle speed is proved to be a key parameter that determines the outcome of a vehicle-pedestrian conflict. The pedestrian island spatially separates the opposite directions of vehicle flows, thus enabling a better perception of the conflict zone, which is important for vulnerable traffic users. In this paper, an analysis of the effectiveness of horizontal discontinuities and pedestrian islands, as infrastructural measures for traffic calming, was made. The evaluation was made using microsimulation traffic modeling, and the calibration of the model was made using a neural network based on measured field data. Travel time is a traffic indicator used in the model calibration process. The calibrated model was then used for the analysis of the effects of the planned reconstruction of the road network segment near the children's playground in a residential area in the city of Osijek, Croatia. Statistical analysis was done to determine whether vehicle speeds on the observed road network segment before and after reconstruction differ significantly. Applied methodology showed that the application of microsimulation traffic modeling provides a possibility to assess the effectiveness of the reconstruction of transport infrastructure in the planning phase.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Tehnologija prometa i transport

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