Estrategia de desarrollo de negocio para el producto Atos RTTF (Real Time Traffic Forecast)

El objetivo del presente proyecto de fin de máster es desplegar la estrategia de negocio completa, desde las declaraciones y premisas hasta la implantación y ejecución, para una solución novedosa de la compañía AtoS. Esta solución se denomina RTTF (Real Time Traffic Forecast), y sus objetivos principales, a alto nivel, son los siguientes: a) Conseguir unas mejores ciudades en la que vivir y trabajar. b) Realizar una gestión de tráfico proactiva para un uso de recursos de las ciudades optimizado. Nuestro planteamiento en este trabajo es, basado en las el módulo de estrategia del máster, diseñar un plan de negocio para desarrollar y potenciar la anterior solución. Para ello también necesitaremos herramientas de otros módulos del máster, como el de marketing, operaciones, o finanzas. Para ello, comenzaremos analizando el entorno desde el punto de vista de la posible receptividad al producto, así como de los posibles competidores, con objeto de posicionar de manera inicial nuestra solución, y reflexionar sobre si ese posicionamiento es el adecuado. Añadiendo también el estudio interno de la compañía y de la propia solución sobre la que versa el proyecto. El principal entregable del presente trabajo será un plan de negocio, con fechas, objetivos y un listado de clientes por orden de prioridad, con el objetivo final de desarrollar la solución.

Experimental analysis of energy savings and hygrothermal conditions improvement by means of air curtaines in stores with intensive pedestrian traffic

Current worldwide building legislation requirements aim to the design and construction of technical services that reduce energy consumption and improve indoor hygrothermal conditions. The retail sector in Spain, with a lot of outdated technical systems, demands energy conservation measures in order to reduce the increasingly electrical consumption for cooling. Climatic separation with modern air curtains and advanced hygrothermal control systems enables energy savings and can keep suitable indoor air temperature and humidity of stores with intense pedestrian traffic, especially when located in hot humid climates. As stated in the article, the energy savings in commercial buildings with these systems exceeds 30%

A survey of feature selection in Internet traffic characterization

In the last decade, the research community has focused on new classification methods that rely on statistical characteristics of Internet traffic, instead of pre-viously popular port-number-based or payload-based methods, which are under even bigger constrictions. Some research works based on statistical characteristics generated large fea-ture sets of Internet traffic; however, nowadays it?s impossible to handle hun-dreds of features in big data scenarios, only leading to unacceptable processing time and misleading classification results due to redundant and correlative data. As a consequence, a feature selection procedure is essential in the process of Internet traffic characterization. In this paper a survey of feature selection methods is presented: feature selection frameworks are introduced, and differ-ent categories of methods are briefly explained and compared; several proposals on feature selection in Internet traffic characterization are shown; finally, future application of feature selection to a concrete project is proposed.

Investigations on the distribution of air transport traffic and CO2 emissions within the European Union

This study analyses the structure of air traffic and its distribution among the different countries in the European Union, as well as traffic with an origin or destination in non-EU countries. Data sources are Eurostat statistics and actual flight information from EUROCONTROL. Relevant variables such as the number of flights, passengers or cargo tonnes and production indicators (RPKs) are used together with fuel consumption and CO2 emissions data. The segmentation of air traffic in terms of distance permits an assessment of air transport competition with surface transport modes. The results show a clear concentration of traffic in the five larger countries (France, Germany, Italy, Spain and UK), in terms of RPKs. In terms of distance the segment between 500 and 1000 km in the EU, has more flights, passengers, RTKs and CO2 emissions than larger distances. On the environmental side, the distribution of CO2 emissions within the EU Member States is presented, together with fuel efficiency parameters. In general, a direct relationship between RPKs and CO2 emissions is observed for all countries and all distance bands. Consideration is given to the uptake of alternative fuels. Segmenting CO2 emissions per distance band and aircraft type reveals which flights contribute the most the overall EU CO2 emissions. Finally, projections for future CO2 emissions are estimated, according to three different air traffic growth and biofuel introduction scenarios.

Dynamic behaviour of underspanned suspension road bridges under traffic loads

Underspanned suspension bridges are structures with important economical and aesthetic advantages, due to their high structural efficiency. However, road bridges of this typology are still uncommon because of limited knowledge about this structural system. In particular, there remains some uncertainty over the dynamic behaviour of these bridges, due to their extreme lightness. The vibrations produced by vehicles crossing the viaduct are one of the main concerns. In this work, traffic-induced dynamic effects on this kind of viaduct are addressed by means of vehicle-bridge dynamic interaction models. A finite element method is used for the structure, and multibody dynamic models for the vehicles, while interaction is represented by means of the penalty method. Road roughness is included in this model in such a way that the fact that profiles under left and right tyres are different, but not independent, is taken into account. In addition, free software {PRPgenerator) to generate these profiles is presented in this paper. The structural dynamic sensitivity of underspanned suspension bridges was found to be considerable, as well as the dynamic amplification factors and deck accelerations. It was also found that vehicle speed has a relevant influence on the results. In addition, the impact of bridge deformation on vehicle vibration was addressed, and the effect on the comfort of vehicle users was shown to be negligible.

Using aircraft as wind sensors for estimating accurate wind fields for air traffic management applications

A study which examines the use of aircraft as wind sensors in a terminal area for real-time wind estimation in order to improve aircraft trajectory prediction is presented in this paper. We describe not only different sources in the aircraft systems that provide the variables needed to derivate the wind velocity but the capabilities which allow us to present this information for ATM Applications. Based on wind speed samples from aircraft landing at Madrid-Barajas airport, a real-time wind field will be estimated using a data processing approach through a minimum variance method. Finally the accuracy of this procedure will be evaluated for this information to be useful to Air Traffic Control.

Development of the infrastructure for a multi-agent traffic management system simulation

This document contains detailed description of the design and the implementation of a multi-agent application controlling traffic lights in a city together with a system for simulating traffic and testing. The goal of this thesis is to design and build a simplified intelligent and distributed solution to the problem with the traffic in the big cities following different good practices in order to allow future refining of the model of the real world. The problem of the traffic in the big cities is still a problem that cannot be solved. Not only is the increasing number of cars a reason for the traffic jams, but also the way the traffic is organized. Usually, the intersections with traffic lights are replaced by roundabouts or interchanges to increase the number of cars that can cross the intersection in certain time. But still there are places where the infrastructure cannot be changed and the traffic light semaphores are the only way to control the car flows. In real life, the traffic lights have a predefined plan for change or they receive information from a centralized system when and how they have to change. But what if the traffic lights can cooperate and decide on their own when and how to change? Using this problem, the purpose of the thesis is to explore different agent-based software engineering approaches to design and build a non-conventional distributed system. From the software engineering point of view, the goal of the thesis is to apply the knowledge and use the skills, acquired during the various courses of the master program in Software Engineering, while solving a practical and complex problem such as the traffic in the cities.

Event-based time series data preprocessing: application to traffic flow time series

Traffic flow time series data are usually high dimensional and very complex. Also they are sometimes imprecise and distorted due to data collection sensor malfunction. Additionally, events like congestion caused by traffic accidents add more uncertainty to real-time traffic conditions, making traffic flow forecasting a complicated task. This article presents a new data preprocessing method targeting multidimensional time series with a very high number of dimensions and shows its application to real traffic flow time series from the California Department of Transportation (PEMS web site). The proposed method consists of three main steps. First, based on a language for defining events in multidimensional time series, mTESL, we identify a number of types of events in time series that corresponding to either incorrect data or data with interference. Second, each event type is restored utilizing an original method that combines real observations, local forecasted values and historical data. Third, an exponential smoothing procedure is applied globally to eliminate noise interference and other random errors so as to provide good quality source data for future work.

Development and assessment of traffic-related emission abatement measures for the Madrid city (Spain) through the WRF-SMOKE-CMAQ modelling system

The achievement of the limit values established in the European legislation pose an important handicap for large urban areas with intense road traffic, such as Madrid (Spain). Despite permanent measures included in air quality plans it is important to assess additional measures that may be temporally applied under unfavourable conditions. This paper reports on the simulation of different traffic restriction strategies in Madrid for high-pollution episodes.

Bases y procesos de certificación de sistemas aéreos no tripulados

El objetivo de la tesis es el de crear unas bases de certificación para sistemas aéreos remotamente pilotados teniendo en consideración los siguientes requisitos: 1) La base ha de tener una estructura similar a la existente para los aviones tripulados. De esta manera se favorecerá una futura convergencia entre las bases de certificación según las misiones realizadas y las tecnologías empleadas por aviones tripulados y pilotados a distancia vayan convergiendo. La CS 23 y FAR 23 van a ser modificadas en profundidad en un futuro inmediato. Se ha considerado la redacción de la nueva normativa propuesta. 2) Los requisitos han de considerar los cambios definidos por las autoridades que gestionan el espacio aéreo. En Europa es SESAR JU quien gestiona el proceso. 3) Los organismos reguladores de la aviación están emitiendo consejos y recomendaciones para permitir la operación de los RPAS en el espacio aéreo no segregado. Asimismo han establecido unos principios fundamentales en los que han de basarse las bases de certificación. Se analizarán los documentos publicados al respecto por OACI, FAA y EASA que han aumentado significativamente en 2015. 4) Los altos niveles de seguridad alcanzados por la aviación han sido principalmente conseguidos gracias a la existencia de unas bases de certificación que se han actualizado frecuentemente considerando la experiencia en el diseño y la operación. Esta experiencia en los RPAS es reducida pero puede aportar importante información de seguridad. ABSTRACT The Goal of the Thesis is to create a certification specification for remotely piloted systems (RPAS). The methodology used for the development of the standard considers the following constrains: 1. The Base shall be defined in a similar way as the standards used for manned aircraft of the same category. This procedure will make possible a future merging of the standards for manned and unmanned system. It is foreseen that the missions performed and the technology used will be similar in a near future. CS23 and FAR 23 are going to be completely modified in a near future. The changed proposed will also be considered. 2. The standards developed must consider all the changes that are being defined by the air traffic management authorities around the globe. In Europe the program is being managed by SESAR Joint Undertaking. 3. The regulatory organizations are providing technical advice and recommendations in order to permit the operation of the RPAS in non-segregated airspace. There has been a big amount of documentation issued in the last year by ICAO, EASA and FAA. The standards developed should consider and implement these requirements. 4. The high safety record obtained by the manned aviation has been mainly due to the continuous update of the certifications standards based on the experience. The experience in the design and operation of RPAS is reduced but can already provide important safety information.

Aeroelastic effects in a traffic sign panel induced by a passing vehicle

Here, a simple theoretical model of the vehicle induced flow and its effects on traffic sign panels is presented. The model is a continuation of a previous one by Sanz-Andrés and coworkers, now including the flexibility of the panel (and, therefore, the flow effects associated to the motion of the panel). Through the paper an aeroelastic one-degree-of-freedom model is developed and the flow effects are computed from unsteady potential theory. The influence of panel's mechanical properties (mass, damping ratio, and stiffness) in the motion induced forces are numerically analyzed.

Vehicle-induced loads on traffic sign panels

The determination of the loads on traffic sign panels in the current standards does not, in general, take into account the vehicle-induced loads, as explained by Quinn, Baker and Wright (QBW in what follows) (J. Wind Eng. Ind. Aerodyn. 89 (2001) 831). On the other hand, a report from Cali and Covert (CC) (J. Wind Eng. Ind. Aerodyn. 84 (2000) 87) indicates that in highway sign support structures, vehicle-induced loads have led to premature failures in some cases. The aim of this paper is to present a mathematical model for the vehicle-induced load on a flat sign panel, simple enough to give analytical results, but able to explain the main characteristics of the phenomenon. The results of the theoretical model help to explain the behaviour observed in the experiments performed in previous studies.