Now showing items 21-40 of 42

    • Experimenting with dynamic speed limits on freeways 

      Soriguera Martí, Francesc; Martínez Josemaria, Irene; Menéndez, Mónica (Transportation Research Board (TRB), 2015)
      Conference lecture
      Restricted access - publisher's policy
      This paper presents the design and first results of the Dynamic Speed Limit (DSL) experiment that took place on the last 13 km stretch of the B-23 freeway accessing the city of Barcelona (Spain). The DSL system installed, ...
    • Freeway lab: testing dynamic speed limits 

      Soriguera Martí, Francesc; Sala Sanmartí, Marcel (2014)
      Conference report
      Open Access
      This paper presents the Dynamic Speed Limit (DSL) experiment that took place in June 2013 on the last 13 km stretch of the B-23 freeway accessing the city of Barcelona (Spain). The DSL system installed on that freeway in ...
    • Freeway lane-changing: some empirical findings 

      Sala Sanmartí, Marcel; Soriguera Martí, Francesc (Elsevier, 2018)
      Article
      Open Access
      Lane changing activity is thought to play an important role in the capacity degradation of congested freeways. However, proofs of this negative impact are scarce due to the difficulties in obtaining suitable data. In this ...
    • Freeway travel time information from input-output vehicle counts: a drift correction method based on AVI data 

      Soriguera Martí, Francesc; Martínez Díaz, Margarita (2020-05)
      Article
      Open Access
      Input-output cumulative count curves are a powerful tool to forecast freeway travel times in the very short term, as they rely on the predictive information given by the vehicles' accumulation in the target section. ...
    • Freeway travel time information in real time: new opportunity for spot speed methods 

      Soriguera Martí, Francesc (2013)
      Conference lecture
      Restricted access - publisher's policy
      This paper shows that the precision of a freeway travel time information system, in a real-time context, is not related solely to the accuracy of the measurement. Immediacy in reporting the information and forecasting ...
    • Highway Travel Time Data Fusion 

      Soriguera Martí, Francesc; Abeijón Monjas, David; Thorson Bofarull, Leif; Robusté Antón, Francesc (Transportation Research Board, 2008)
      Conference lecture
      Open Access
      The development of new traffic monitoring systems and the increasing interest of road operators and researchers in obtaining reliable travel time measurements has leaded to the development of multiple travel time data ...
    • Highway travel time estimation with data fusion 

      Soriguera Martí, Francesc (Universitat Politècnica de Catalunya, 2010-12-15)
      Doctoral thesis
      Open Access
      La informació sobre el temps de viatge és l'indicador clau en el funcionament operatiu d’una autopista i un dels inputs més apreciats pels seus usuaris. Tot i això, no ha estat fins molt darrerament que els operadors ...
    • Highway travel time estimation with data fusion 

      Soriguera Martí, Francesc (Springer, 2016)
      Book
      Restricted access - publisher's policy
      Travel time information is the key indicator of highway management performance and one of the most appreciated inputs for highway users. Despite this relevance, the interest of highway operators in providing approximate ...
    • Highway travel time information system based on cumulative count curves and new tracking technologies 

      Soriguera Martí, Francesc; Martínez-Díaz, Margarita; Pérez Pérez, Ignacio (Universitat Politècnica de València, 2016)
      Conference report
      Open Access
      Travel time is probably the most important indicator of the level of service of a highway, and it is also the most appreciated information for its users. Administrations and private companies make increasing efforts to ...
    • Highway travel time information system based on cumulative count curves and new tracking technologies 

      Soriguera Martí, Francesc; Martínez Díaz, Margarita; Pérez Pérez, Ignacio (Elsevier, 2016)
      Article
      Open Access
      Travel time is probably the most important indicator of highway level of service, and it is also the most appreciated information for highway users. Administrations and private companies make increasing efforts to improve ...
    • Introduction of autonomous vehicles in traffic flow: theoretical and practical challenges 

      Martínez Díaz, Margarita; Soriguera Martí, Francesc (Universidad de Oviedo, 2018)
      Conference report
      Restricted access - publisher's policy
      Autonomous driving is expected to revolutionize road traffic solving current issues, especially accidents and congestion. Carmakers, researchers and administrations have been working on the topic for years and significant ...
    • Lane-changing and freeway capacity: a Bayesian inference stochastic model 

      Sala Sanmartí, Marcel; Soriguera Martí, Francesc (2020-07)
      Article
      Restricted access - publisher's policy
      This article presents a new stochastic computational model for determining freeway capacity reduction as a result of lane-changing activity. The probability density function for the maximum flow that can be sustained on a ...
    • Measuring traffic flow and lane changing from semi-automatic video processing 

      Sala Sanmartí, Marcel; Soriguera Martí, Francesc (Universitat Politècnica de València, 2016)
      Conference report
      Open Access
      Comprehensive databases are needed in order to extend our knowledge on the behavior of vehicular traffic. Nevertheless data coming from common traffic detectors is incomplete. Detectors only provide vehicle count, detector ...
    • Measuring traffic lane-changing by converting video into space–time still images 

      Sala Sanmartí, Marcel; Soriguera Martí, Francesc; Huillca, Kevin; Vilaplana Besler, Verónica (2019-06)
      Article
      Open Access
      Empirical data is needed in order to extend our knowledge of traffic behavior. Video recordings are used to enrich typical data from loop detectors. In this context, data extraction from videos becomes a challenging task. ...
    • Modifications of asymmetric cell transmission model for modeling variable speed limit strategies 

      Torné Santos, Josep Maria; Soriguera Martí, Francesc; Geroliminis, Nikolas (2012)
      Conference report
      Restricted access - publisher's policy
    • Nuevos datos de tráfico en autopista con límites de velocidad variable 

      Soriguera Martí, Francesc; Sala Sanmartí, Marcel; Martínez Josemaria, Irene (2015-09)
      Article
      Open Access
      Este artículo presenta el experimento con Límites de Velocidad Variable (DSL) que se realizó en Junio de 2013 en la autopista B-23 de acceso a Barcelona. El sistema DSL instalado en esta autopista, así como la alta densidad ...
    • Short-term prediction of freeway travel times by fusing input-output vehicle counts and GPS tracking data 

      Martínez Díaz, Margarita; Soriguera Martí, Francesc (Informa UK (Taylor & Francis), 2020-12)
      Article
      Restricted access - publisher's policy
      Short-term travel time prediction on freeways is the most valuable information for drivers when selecting their routes and departure times. Furthermore, this information is also essential at traffic management centers in ...
    • Technology: a necessary but not sufficient condition for future personal mobility 

      Martínez Díaz, Margarita; Soriguera Martí, Francesc; Pérez Pérez, Ignacio (2018-11)
      Article
      Open Access
      Technological advances revolutionize industrial processes, science, communications, and our way of life. However, developed societies have reached a stage in which the fascination with technological innovations often results ...
    • Travel Time Estimation from Multiple Data Sources 

      Soriguera Martí, Francesc; Rosas Díaz, Dulce María; Abeijón Monjas, David; Thorson Bofarull, Leif; Robusté Antón, Francesc (University of California, Berkeley, 2007)
      Conference lecture
      Open Access
      Travel time is the best indicator of the level of service in a road link, and perhaps the most important variable for measuring congestion. This paper presents a method for estimating accurate travel times in toll highways ...
    • Travel time estimation using toll collection data 

      Soriguera Martí, Francesc; Thorson Bofarull, Leif; Robusté Antón, Francesc (Technical University of Bari and the EURO working Group on Transportation, 2006)
      Conference lecture
      Open Access
      Transportation System Management (TSM) permits optimizing the current available road network. Travel time and its reliability are key factors in road management systems, as they are good indicators of the level of service ...