Publication

Linking trajectory data collected with a swarm of drones to the underlying urban network for macroscopic traffic parameter estimation

Nikolaos Geroliminis, Emmanouil Barmpounakis
2020
Article de conférence
Résumé

Recently, an open-data initiative was announced with one of the most complete datasets to study urban congestion. The pNEUMA dataset consists of more than half a million trajectories in heterogeneous traffic. In order to utilize the dataset for macroscopic studies it is necessary to relate these trajectories to a road network as trajectory data is rarely linked to the underlying road network. This paper presents a framework to extract a full road network, map-match the trajectory data and measure macroscopic traffic characteristics by implementing virtual loops anywhere in the network. Some first findings reveal the influence of heterogeneous traffic on the Fundamental Diagram (FD) especially when it comes to the effect of Powered Two-Wheelers (PTW). Thus, a modification taking into account the different size of the vehicles is applied to treat large overestimation of density in homogenious traffic environments.

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Concepts associés (34)
Transport routier
Le transport routier est un mode de transport utilisant les véhicules suivants : les automobiles, les véhicules utilitaires (légers et lourds) et les deux-roues. Dans le domaine des secteurs d'activité, le transport routier est une activité réglementée de , qui s'exerce sur la route. Elle englobe à la fois le transport routier de personnes, le transport routier de marchandises et le déménagement. Ces activités commerciales sont exercées par les transporteurs routiers.
Sustainable urbanism
Sustainable urbanism is both the study of cities and the practices to build them (urbanism), that focuses on promoting their long term viability by reducing consumption, waste and harmful impacts on people and place while enhancing the overall well-being of both people and place. Well-being includes the physical, ecological, economic, social, health and equity factors, among others, that comprise cities and their populations.
Urban design
Urban design is an approach to the design of buildings and the spaces between them that focuses on specific design processes and outcomes. In addition to designing and shaping the physical features of towns, cities, and regional spaces, urban design considers 'bigger picture' issues of economic, social and environmental value and social design. The scope of a project can range from a local street or public space to an entire city and surrounding areas.
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