@article{10902/35569, year = {2023}, month = {10}, url = {https://hdl.handle.net/10902/35569}, abstract = {The reduction of urban congestion represents one of the main challenges for increasing sustainability. This implies the necessity to increase our knowledge of urban mobility and traffic. The fundamental diagram (FD) is a possible tool for analyzing the traffic conditions on an urban road link. FD is commonly associated with the links of a transport network, but it has recently been extended to the whole transport network and named the network macroscopic fundamental diagram (NMFD). When used at the link or network level, the FD is important for supporting the simulation, design, planning, and control of the transport system. Recently, floating car data (FCD), which are based on vehicles' trajectories using GPS, are able to provide the trajectories of a number of vehicles circulating on the network. The objective of this paper is to integrate FCD with traffic data obtained from traditional loop-detector technology for building FDs. Its research contribution concerns the proposal of a methodology for the extraction of speed data from taxi FCD, corresponding to a specific link section, and the calibration of FDs from FCD and loop detector data. The methodology has been applied to a real case in the city of Santander. The first results presented are encouraging, supporting the paper?s thesis that FCD can be integrated with data obtained from loop detectors to build FD.}, organization = {This paper was supported as part of the research projects “Towards a new advanced real-time integrated mobility management system”, with reference 2023/TCN/007, funded by the Ministry of Industry, Employment, Innovation and Trade of the Government of Cantabria, as well as the application of methodologies developed in the SUM+Cloud project, funded by the Ministry of Economic Affairs and Digital Transformation of the Government of Spain.}, publisher = {MDPI}, publisher = {ISPRS International Journal of Geo-Information, 2023, 12(10), 418}, title = {Estimation of a fundamental diagram with heterogeneous data sources: experimentation in the city of Santander}, author = {Alonso Oreña, Borja and Musolino, Giuseppe and Rindone, Corrado and Vitetta, Antonio}, }