Title
A Simulation Model For Non-Signalized Pedestrian Crosswalks Based On Evidence From On Field Observation
Abstract
This paper presents a model to simulate non-signalized pedestrian crosswalks. Principal scope is to develop a tool to be used by decision-makers to evaluate the necessity of introducing a new crosswalk and/or switching to a traffic light and estimate the potential benefits of such a measure in terms of Level of Service. The model is based on empirical evidence gained during an observation of a non-signalized crosswalk. Pedestrian motion is simulated using a Cellular Automata model which is capable to simulate pedestrian dynamics at low density conditions, as observed in the considered scenario. Vehicles use a continuous car following model inspired on Gipps equations in which driver's reaction time is considered. Pedestrian's decision-making process on crossing attempt and model parameters are directly obtained from the analysis of pedestrian-vehicle interactions observed in reality. The model developed employs small time steps, thus allowing the consideration of different pedestrian speeds (intrinsically considering pedestrians with reduced mobility, such as elderlies) and smoothly reproducing car-pedestrian interactions. This aspect required the definition of distinct behavioral rules for vehicles and pedestrians that, in their dynamic interaction, implement an ad-hoc coordination model. In order to validate the model, delays (or waiting times) measured for both pedestrians and drivers were compared with simulated values. Results show a good agreement between empirically obtained time delay and values computed in the simulation.
Year
DOI
Venue
2017
10.3233/IA-170110
INTELLIGENZA ARTIFICIALE
Keywords
Field
DocType
Non-signalized crosswalk, vehicular traffic, pedestrian traffic, traffic simulation, pedestrian-vehicle interaction
Pedestrian,Field observation,Computer science,Computer network,Real-time computing
Journal
Volume
Issue
ISSN
11
2
1724-8035
Citations 
PageRank 
References 
4
0.57
5
Authors
6
Name
Order
Citations
PageRank
Claudio Feliciani141.92
Luca Crociani29220.05
Andrea Gorrini3237.97
Giuseppe Vizzari4652100.25
Stefania Bandini5964191.51
Katsuhiro Nishinari618947.27