Generating traffic flow and speed regional model data using internet GPS vehicle records.

ABSTRACT: Nowadays, many smart-phones and vehicles are equipped with Global Position System (GPS) for tracking and navigation purposes, providing an opportunity to derive highly representative local vehicular flow and estimate vehicular emissions information. Here, we report and discuss methods used to handle large volumes of such activity data, namely 124 million GPS recordings from the web page Maplink.com.br, extract high spatial resolution vehicular flow information for a vast area in South-east Brazil, and correct for bias using traffic counts observations for the same area. The method consists in filter speed and accelerations, assign buffers to the road network, aggregate speed by street, fill missing number of lanes, generate traffic flow. Methods presented

SUBMITTER: Ibarra-Espinosa S 

PROVIDER: S-EPMC6812335 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature