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Francesc Soriguera

Francesc Soriguera
UPC-BarcelonaTech · Department of Civil and Environmental Engineering

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About

57
Publications
14,103
Reads
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658
Citations
Introduction
I am Associate Professor at the Department of Civil and Environmental Engineering of the Technical University of Catalonia (Civil Engineering School, UPC-BarcelonaTech). I am member of the Barcelona Innovative Transportation – BIT research group. My current research interests include traffic analysis and management, the improvement of urban mobility and the optimization of transportation operations.
Additional affiliations
February 2005 - present
UPC-BarcelonaTech
Position
  • Professor (Associate)

Publications

Publications (57)
Article
Full-text available
A platoon of connected automated vehicles (CAVs) is defined as a group of CAVs that exchange information, so that they can drive in a coordinated way, allowing very small spacings and, still, travelling safely at relatively high speeds. The concept of vehicle platooning is not new. Scientific articles on platooning have been published since the 197...
Article
In the near future, autonomous vehicles (AVs) will travel sharing the current freeways with human driven vehicles. The efficiency of this mixed traffic scenario will depend on the ability of AVs to behave cooperatively. Otherwise, the introduction of uncoordinated AVs might lead to capacity reductions. Connected AVs (CAVs) traveling in platoons rep...
Article
Full-text available
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 order to monitor the network performance and anticipate the activation of traffic management strategies. The importance of reliab...
Article
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. Therefore, they could represent a very appealing method to feed real-time traffic information systems. However, traffic detectors' cou...
Article
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 freeway for a given lane‐changing level is obtained. The results can be used to support freeway management strategies aiming to...
Article
Full-text available
Repositioning operations are fundamental on bike-sharing systems. Its optimization is necessary in order to achieve the best level of service with minimum agency cost. Literature propose routing models that preventively avoid full and empty stations according to demand forecasting with good results. However, simulations show that reactive methods c...
Article
Full-text available
Autonomous vehicles (AV) will be present in freeways, and they will have to share current infrastructure with human driven vehicles. This mixed traffic scenario needs to be planed and managed. Some research points that an AV mismanagement could lead to a capacity decrease. This can be solved with connected AV traveling in platoons. Some research ex...
Article
During the last decade, public bike-sharing systems have gained momentum and popularity. Many cities worldwide have put their trust in bike-sharing to promote bicycle use and move towards more sustainable mobility. This paper presents a parsimonious model from which to derive the optimal strategical design variables for bike-sharing systems (i.e. t...
Article
Full-text available
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. Setting automatic video processing systems is costly, complex, and the accuracy achieved is usually not enough to improve traffi...
Poster
Full-text available
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 paper, the lane-changing activity in the B-23 freeway accessing the city of Barcelona is analyzed. Lane changes (LC) were video...
Article
Full-text available
The introduction of autonomous vehicles (AV) will represent a milestone in the evolution of transportation andpersonal mobility. AVs are expected to significantly reduce accidents and congestion, while being economically andenvironmentally beneficial. However, many challenges must be overcome before reaching this ideal scenario. This study, whichre...
Article
Full-text available
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 in their indiscriminate consumption. In this paper, road traffic is used as a line of argument to demonstrate that the random...
Article
Full-text available
Autonomous driving is expected to revolutionize road traffic attenuating current externalities, especially accidents and congestion. Carmakers, researchers and administrations have been working on autonomous drivingfor years and significant progress has been made. However, the doubts and challenges to overcome are still huge, as the implementation...
Article
Full-text available
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 paper, the lane changing activity in the B-23 freeway accessing the city of Barcelona is analyzed. Lane changes (LC) were video...
Article
Full-text available
Recent years have seen a renewed interest in Variable Speed Limit (VSL) strategies. New opportunities for VSL as a freeway metering mechanism or a homogenization scheme to reduce speed differences and lane changing maneuvers are being explored. This paper examines both the macroscopic and microscopic effects of different speed limits on a traffic s...
Article
Full-text available
This paper faces the human factor in driving and its consequences for road safety. It presents the concepts behind the development of a smartphone app capable of evaluating drivers’ performance. The app provides feedback to the driver in terms of a grade (between 0 and 10) depending on the aggressiveness and risks taken while driving. These are com...
Chapter
This chapter starts analyzing the importance of travel time information in mobility management. After that, it presents a qualitative description of direct and indirect methods for travel time estimation and defines data fusion concepts and their relationship with travel time forecasting. The effects of travel time information dissemination strateg...
Chapter
The development of new traffic monitoring systems and the increasing interest of road operators and researchers in obtaining reliable travel time measurements, motivated by society’s demands, have led to the development of multiple travel time data sources and estimation algorithms. This situation provides a perfect context for the implementation o...
Article
Full-text available
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 its real time estimation. The appearance of new technologies makes the precise measurement of travel times easier than never bef...
Conference Paper
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 improve its real time estimation. The appearance of new technologies makes the precise measurement of travel times easier than neve...
Chapter
In this Chapter, travel time definitions are analytically presented. Also, a trajectory reconstruction algorithm necessary in order to navigate between different travel time definitions is proposed. The concepts presented in this chapter are aimed to create a conceptual framework useful in comparing travel times obtained from different methodologie...
Chapter
The accuracy of real-time travel time information disseminated on metropolitan freeways is one of the key issues in the development of advanced traveler information systems. Although very accurate estimations could be obtained if suitable and intensive monitoring systems were available, travel time estimations must usually rely on data obtained fro...
Chapter
The accuracy of travel time information disseminated in real-time on metropolitan freeways is one of the key issues in the development of advanced traveler information systems. It is generally considered that travel time estimations based on spot speed measurements at loop detectors are not accurate enough to support this real-time information need...
Chapter
Travel time for a road trip is a drivers’ most appreciated traffic information. Measuring travel times on a real time basis is also a perfect indicator of the level of service in a road link, and therefore is a useful measurement for traffic managers in order to improve traffic operations on the network. In conclusion, accurate travel time measurem...
Chapter
After the generalized deployment of advanced traveler information systems, there exists an increasing concern about their profitability. The costs of such systems are clear, but the quantification of the benefits still generates debate. This chapter analyzes the value of highway travel time information systems. This is achieved by using notions of...
Article
This paper describes the effects of dynamic speed limit (DSL) control on a three-lane section on the A13 Freeway in Rotterdam, Netherlands. The main objective was to contrast the latest empirical findings from an experiment conducted in Barcelona, Spain, in which the main line metering capability (i.e., gating, or main line flow restriction) was qu...
Article
Full-text available
De un tiempo a esta parte, un objetivo común de muchos gestores de tráfico es proporcionar información del tiempo de viaje previsto en las infraestructuras que gestionan. Estos esfuerzos responden al hecho que el tiempo de viaje es la infor-mación de tráfico que más valora el usuario. No obstante, se desconoce como cuantificar el valor de esta info...
Article
This monograph presents a simple, innovative approach for the measurement and short-term prediction of highway travel times based on the fusion of inductive loop detector and toll ticket data. The methodology is generic and not technologically captive, allowing it to be easily generalized for other equivalent types of data. The book shows how Bayes...
Article
Full-text available
Some of the most frequently claimed dynamic speed limits (DSL) benefits (e.g. increase of throughput or speed homogenization) still remain a controversial topic among the scientific community, practitioners and society in general. The objective of the paper is to present an empirical assessment of this policy, aiming to provide an insightful respon...
Article
Full-text available
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 addition to the high density of surveillance equipment available makes this stretch a suitable highway lab. The objective of the...
Article
Full-text available
After the widespread deployment of Advanced Traveler Information Systems, there exists an increasing concern about their profitability. The costs of such systems are clear, but the quantification of the benefits still generates debate. This paper analyzes the value of highway travel time information systems. This is achieved by modeling the departu...
Conference Paper
A new integrated strategy, i.e. ramp metering together with dynamic speed limits (DSL), is proposed to reduce the capacity drop occurrence in the vicinity of an on-ramp. It is tested with a cell transmission model extension which incorporates the ability to reproduce DSL strategies together with capacity drop phenomenon. It is based in a simple for...
Article
Many freeway first order traffic macroscopic models have been developed since the seminal work of the well-known LWR continuous model. The Asymmetric Cell Transmission Model (ACTM) is a widely accepted macroscopic model integrated in freeway traffic control framework. Essentially, the model is based on the original Cell Transmission Model (CTM), wi...
Conference Paper
Full-text available
Dynamic speed limits (DSL) strategies are expected to delay onset of congestion thanks to its ability to improve traffic flow homogenization and its mainstream metering feature. A new coordinated strategy, i.e. ramp metering (RM) together with DSL, is proposed to reduce the capacity drop occurrence in the vicinity of an on-ramp. It is based in a si...
Article
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 capabilities play a role. Therefore, focusing only on the accuracy of the travel-time measurement is a myopic approach, which can le...
Article
Full-text available
The ongoing development of new traffic monitoring technologies gives rise to a situation with multiple sources of data and multiple algorithms for the estimation of variables that may be of interest, among them information on travel time. This context with data from different sources, all of them imprecise to varying degrees, is the right one for a...
Article
This article evaluates the impacts of dynamic speed limit strategies in metropolitan freeways. An objective function is defined in order to balance the benefits (e.g., reduction of congestion, pollutant emissions and fuel consumption, or increase in traffic safety) and costs (e.g., increase of free flow travel times). This function is generic in it...
Article
The development and decreased cost of technology and communications have brought about a huge increase in the availability of traffic data.With every passing day, traffic management centers must deal with an increased amount of detailed data. Once the real time use of these data is complete, they must be stored for long periods of time. In this lon...
Conference Paper
1 Motivation Most of freeway traffic models dealing with variable speed limits (VSL) rely on second order models [1-3]. In general, these models consist of two equations: the first expresses the vehicles conservation law, whereas the second features the delayed reaction and anticipation (i.e. the hysteresis phenomenon). However, most of them are no...
Article
Travel time estimation from loop measurements has attracted extensive research in the last decade, resulting in numerous methodologies. Among these, those that rely on spot speed measurements at detector sites to obtain travel time estimation on the target stretch are the most intuitive. The key issue concerning these methods is the spatial general...
Article
In one of the very first papers on traffic flow theory back in 1952, Wardrop presented the difference between the space mean speed (SMS) and the time mean speed (TMS) of a group of traveling vehicles, and derived a relationship suitable for estimating TMS, given SMS and the speed variance over SMS. As time goes by, traffic practitioners have tended...
Conference Paper
In July 2007, the Autonomous Government of Catalonia passed a 73-measure plan to improve the air quality in the metropolitan region of Barcelona, Spain. This plan (which turned into law in January 2008) included 80 km/h speed limitations on major highways around the city (e.g., the C-32 highway). One year later, dynamic speed limits (DSL), maintain...
Article
The development of new traffic monitoring systems and the increasing interest of road operators and researchers in obtaining reliable travel time measurements, motivated by society's demands, have led to the development of multiple travel time data sources and estimation algorithms. This situation provides a perfect context for the implementation o...
Article
Travel time for a road trip is a drivers’ most appreciated traffic information. Measuring travel times on a real time basis is also a perfect indicator of the level of service in a road link, and therefore is a useful measurement for traffic managers in order to improve traffic operations on the network. In conclusion, accurate travel time measurem...
Conference Paper
La evaluación de los efectos de la gestión del límite de velocidad en las autopistas metropolitanas del entorno de Barcelona, medida instaurada desde el 1º de enero de 2008, requiere de un análisis cuantitativo en términos de fluidez, polución y accidentalidad, teniendo en cuenta que la comparación debe realizarse en escenarios homogéneos de demand...
Article
Full-text available
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 sources. This situation represents a perfect environment for the implementation of data fusion systems to obtain the maximum accurac...
Article
Travel time and its reliability are key factors in traffic management systems. They are the best indicators of the level of service in a road link and perhaps the most important variables for measuring congestion. A new approach is presented: it estimates highway travel time with the use of the existing toll highway infrastructure. A simple, effici...
Article
Combined with the success of containerization, globalization has brought about tremendous. increases in container transport around the world. Increased container transport leads to larger container ships, which increase demands on seaport container terminals and their equipment. In this situation, the success of container terminals depends on a fas...
Article
Full-text available
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 using data from multiple sources, as loop detectors and toll tickets. The proposed methodology consists of a data fusion techni...
Article
Most studies concerning port operations focus on the operation between ship and wharf. However, other port activities may also lead to congestion. In general, the capacity of the handling equipment used to transfer the container between the wharf and the storage yard is critical. This paper analyzes the internal transport subsystem in a marine cont...
Article
Full-text available
The globalization combined with the success of containerization has brought about tremendous increases in the transportation of containers across the world. This leads to an increasing size of container ships which causes higher demands on seaport container terminals and their equipment. In this situation, the success of a seaport container termina...
Article
Most studies concerning port operations focus on the operation between ship and wharf. However, other port activities may also lead to congestion. In general, the capacity of the handling equipment used to transfer the container between the wharf and the storage yard is critical. This paper analyzes the internal transport subsystem in a marine cont...
Article
Full-text available
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 in any road link, and perhaps the most important parameter for measuring congestion. This paper presents a new approach for dire...

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Projects

Projects (2)
Project
This project tackles the microscopic modelling and the definition of management strategies for platoons of connected autonomous vehicles (CAV) on highways. This project has received funding in the last call Retos 2019 I+D+i of the Spanish Ministerio de Ciencia e Innovación.
Project
The final objective of the COOP project is then to define a set of strategies and guidelines for the cooperative management of driverless cars in a mixed environment with traditional vehicles.