Search results for "Pedestrian"
showing 10 items of 71 documents
Understanding Safety-Related Issues for Pedestrians at Modern Roundabouts. Journal of Sustainable Development, 5(4):23-37
2012
This paper examines the safety-related issues for pedestrians at modern roundabouts. For this purpose findings of research studies documented in the scientific literature and best practices have been examined trying to focus on roundabout installations by a pedestrians safety perspective. Whereas one of the main reasons for which roundabouts are built is related to safety benefits, roundabout design features and implications in road casualties have been commented first to evaluate the influence of roundabouts on pedestrian safety and then to identify design elements that have such a high potential for traffic safety. At last, measures and treatments that can be taken in the roundabouts desi…
Pedestrian access to a network of public transport
2011
The location of the bus stops is very important in urban and suburban contexts. The same importance of safety perception and comfort during transport operations is attributed to accessibility to bus stops. The placement of bus stops is a crucial factor to increase safety of passengers and pedestrians as well as the efficacy and efficiency of local public transport operations. To correctly localize these infrastructures, designers use physical parameters, such as maximum walking distance and travel time. While critical factors related to the quality of pedestrian access to the bus stop, to the real walked distance or to land use of bus stop areas are not taken in to account. The purpose of t…
A methodology to improve public transport system
2012
The quality of pedestrian routes of access to public transport system (PTS) is an important aspect for the choice of transport mode, that can be evaluated also using some indicators as accessibility, comfort, frequency, etc... The policies for urban sustainable mobility must reflect the design and management of mass transit systems, but also the judgment of users in term of quality and perception of PTS. The purpose is reassess slow mobility encouraging the intermodal mobility between pedestrian and public transport. So the walking can be considered as alternative mode of urban transport and a moment of break from the chaos of modern life. It’s role should be considered as an important elem…
Road safety for the elder pedestrian in urban contexts - L'insicurezza per i pedoni anziani in ambito urbano
2011
Accidents involving elderly pedestrians are an important statistics on accidents due to vehicular traffic. So many researches investigated loss of safety of the elderly. The transition from work to quiescence period changes individuals’ lives and their concept of mobility, but car use is still prevalent during some years. Then the elderly significantly change their way of moving, preferring to walking. Over the years they become more and more fragile and they see the decline of their physical, sensory and cognitive faculties, so their safety has to lead urban Administrations to find practical solutions to improve movement and comfort of these urban users. This study aims to explore possible…
The accessibility of public urban spaces: walkability and ergonomic aspects
2013
Pedestrians can be ergonomically considered as workers into the socio-technical system of public urban space. Pedestrian targets can be defined as operations: the accessibility to a place characterized by services, commercial activities, enjoyment of leisure. Public space is a "universal" tool (differently from the ergonomic one), but it serves different user categories and enables different targets (movement, parking, social integration, etc..). The organization of public space should basically allow to perform users’ activities, but it has often been divided into a spatial and thematic compartments. From the twentieth century it was subservient to the dominion of the car, which strongly i…
Giuseppe Samonà e la “spina dorsale” di Gibellina Nuova
2020
Nel 1970 Giuseppe Samonà coordina il gruppo di progettazione formato da Vittorio Gregotti, Gianni Pirrone e Alberto Samonà per il Progetto del Centro civico, commerciale e culturale di Gibellina Nuova. Del piano è realizzato il municipio e poi, rielaborato e in altro luogo, il teatro. I monumenti, fondati su un asse pedonale in quota connesso a un suolo artificiale articolato, esprimono l’unità architettura – urbanistica e anticipano, per certi versi, una riflessione successiva del Direttore dello IUAV sulla dialettica fra urbano e rurale.
MULTIBODY NUMERICAL SIMULATION FOR VEHICLE – PEDESTRIAN CRASH TEST
2009
The purpose of this paper is the simulation of vehicle – pedestrian crash test, executed by Visual Nastran. The evaluation of the damage caused to pedestrian is obtained following the EURONCAP directive. The vehicle virtual model, DIMA, follows closely the characteristics of a saloon car belonging to the small cars category. A total of 16 simulation tests are conduced; each characterized by different initial conditions. The vehicle advances with several speeds, at constant speed and in braking. The anthropomorphic model Dummy impacts with the vehicle in lateral or perfectly frontal position with respect to the front of the vehicle.
Deep Motion Model for Pedestrian Tracking in 360 Degrees Videos
2019
This paper proposes a deep convolutional neural network (CNN) for pedestrian tracking in 360◦ videos based on the target’s motion. The tracking algorithm takes advantage of a virtual Pan-Tilt-Zoom (vPTZ) camera simulated by means of the 360◦ video. The CNN takes in input a motion image, i.e. the difference of two images taken by using the vPTZ camera at different times by the same pan, tilt and zoom parameters. The CNN predicts the vPTZ camera parameter adjustments required to keep the target at the center of the vPTZ camera view. Experiments on a publicly available dataset performed in cross-validation demonstrate that the learned motion model generalizes, and that the proposed tracking algo…
Pedestrian Tracking in 360 Video by Virtual PTZ Cameras
2018
Since the data acquired by a PTZ camera change while adjusting the pan, tilt and zoom parameters, the results of tracking algorithms are difficult to reproduce; such diffi- culty limits the development and the comparison of tracking algorithms with PTZ cameras. The recently introduced 360- degree cameras acquire spherical views of the environment, generally stored as equirectangular images. Each pixel of an equirectangular image corresponds to a point on the spherical surface. A gnomonic projection can be used to project the points on the spherical surface onto a plane tangent to the sphere. Such tangent plane can be interpreted as the image plane of a virtual PTZ camera oriented towards th…
Citizens’ perceptions in relation to transport systems and infrastructures: a nationwide study in the dominican republic
2021
One of the challenges currently faced by emerging countries is to get their citizens to decide to use sustainable transport for their regular trips, in order to reduce the current vehicular pollution rates. The objective of this descriptive research is to examine the perceptions of Dominicans regarding the state of the country’s transport systems and road infrastructure. For this purpose, a nationwide survey procedure was performed. This cross-sectional research used the data retrieved from a sample of 1260 citizens aged over 18, proportional in gender, age, habitat, and province of the Dominican Republic. The results showed how Dominicans believe that, compared to other road features, pede…