Naslov
Selection and analysis of input parameters influencing pedestrian micro-simulated crossing time

Autori
Gruden, Chiara ; Ištoka Otković, Irena ; Šraml, Matjaž

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

Izvornik
CETRA 2020 6th International Conferenceon Road and Rail Infrastructure / Lakušić, Stjepan - Zagreb, 2021, 1097-1103

ISBN
978-953-8168-48-2

Skup
6th International Conference on Road and Rail Infrastructures (CETRA 2020)

Mjesto i datum
Zagreb, Hrvatska, 20.05.2021. - 21.05.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pedestrian, micro-simulation, input parameters, statistics

Sažetak
Pedestrian unrestrained behaviour, sudden movements and vulnerability are elements, which can highly affect road safety, especially when interacting with motorized vehicles. Therefore, it is important to have a deep insight in pedestrian behaviour. A way to tackle this issue is micro-simulation. Modern micro- simulation tools, indeed, allow, thanks to the implemented mathematical formulation of the problem, to model and repeat a real situation in a virtual environment. Nevertheless, they need to well-fit the real observed behaviour: the calibration step allows to make the model reliable, by adapting selected, influential model input parameters. By dealing with pedestrian issues, software Vissim/Viswalk has been selected for micro-simulation, which implements Helbing’s Social Force model. This model is based on several parameters, like relaxation time, side preference, strength and range of pedestrian interactions, amount of anisotropy, parameters governing the forces among pedestrians, noise, number of reacting pedestrians, queue order and straightness, which need to be set by the user when creating the model, but they can be hardly measured. This paper presents a selection of the recalled input parameters, on which statistical tests are carried out to understand their influence on the behavioural output – crossing time - that is supposed to describe pedestrian crossing behaviour. This is the frst step towards the development of a new calibration methodology, which will keep advantage of artifcial intelligence tools to fine-tune micro- simulation input parameters.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Tehnologija prometa i transport

POVEZANOST RADA