Ajmar Andrea

Ajmar Andrea
Politecnico di Torino | polito · DIST - Interuniversity Department of Regional and Urban Studies and Planning

Doctor of Engineering

About

36
Publications
6,298
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169
Citations

Publications

Publications (36)
Article
Full-text available
Maritime trade represents a significant part of all global import-export trade. The traffic of containerships can be monitored through Automatic Identification System (AIS), due to the fact that the International Maritime Organization (IMO) regulation requires AIS to be fitted aboard all ships of 300 gross tonnage and upwards engaged on internation...
Chapter
The LEXIS Weather and Climate Large-scale Pilot will deliver a system for prediction of water-food-energy nexus phenomena and their associated socio-economic impacts. The system will be based on multiple model layers chained together, namely global weather and climate models, high-resolution regional weather models, domain-specific application mode...
Chapter
The quite recent availability of satellite stereo pairs allows users to extract three-dimensional data that can be used in different domain of applications, such as urban planning, energy, emergency management, etc. This research paper aims to extract digital surface models (DSM) from satellite stereo pairs acquired by three different satellites (D...
Article
Full-text available
Road network functional hierarchy classifies individual roads into several levels, for efficient traffic management and road network generalization purposes. Automatic and semi-automatic road network extraction methods exist, but the generated products normally lack information on its functional hierarchy. This paper presents a methodology for auto...
Chapter
Full-text available
Accurate and rapid earthquake loss assessments and tsunami early warnings are critical in modern society to allow for appropriate and timely emergency response decisions. In the LEXIS project, we seek to enhance the workflow of rapid loss assessments and emergency decision support systems by leveraging an orchestrated heterogeneous environment comb...
Article
Full-text available
This essay describes rapid mapping activities based on satellite imagery and it is focused on earthquake damage assessment carried out by the Rapid Mapping component of the Copernicus Emergency Management Service (CEMS). In the introduction section the potentials of satellite sensors, especially the very-high resolution optical ones, in providing v...
Article
Full-text available
Satellite-based Emergency Mapping (SEM) mechanisms provide information for emergency response in relation to different types of disasters, including tsunamis, based on the analysis of satellite imagery acquired in the aftermath of an event. One of the main critical aspects of a SEM service is the timeliness in providing relevant information in the...
Article
Full-text available
The rapid growth of methods and techniques to acquire geospatial data has led to a wide availability of overlapping geographic datasets with different characteristics. Road network data sources are today a significant number, with high differences in level of detail and modelling schemas, depending on the main purpose. In addition, continuous infor...
Article
Full-text available
In urban and metropolitan context, Traffic Operations Centres (TOCs) use technologies as Geographic Information Systems (GIS) and Intelligent Transport Systems (ITS) to tackling urban mobility issue. Usually in TOCs, various isolated systems are maintained in parallel (stored in different databases), and data comes from different sources: a challen...
Article
Full-text available
Traffic (or road) signs are an important component for applications in the mobility domain. When integrated with a road network, traffic signs, e.g. speed limits, restricted access, breakthrough prohibition signs, provide information that can be exploited in determining impedances, travel times and routing options. Additionally, the availability of...
Article
Full-text available
Floating car data (FCD) is becoming more and more relevant for mobility domain applications, overcoming issues derived by the use of physical sensors (e.g. inductive loops, video observation, infrared and laser vehicle detection etc.), such as limited geographical distribution, measure inhomogeneities, limited or null coverage of minor roads. An in...
Article
Full-text available
Traffic Message Channel (TMC) is a technology for delivering traffic information to vehicle drivers. Sources of traffic information typically include police departments, Traffic Information Centers (TICs), camera systems, traffic speed detectors, floating car data, so on. Both public and commercial TMC services are operational in many countries. TM...
Chapter
This chapter focuses on the emergency mapping activities generally carried out to support the immediate response to flood events, mainly describing the role of satellite data. An introduction on emergency mapping is provided, presenting the Copernicus Emergency Management Service (EMS), the emergency mapping service provided by the European Union (...
Article
Full-text available
In recent years an increasing number of extreme meteorological events have been recorded. Geomatics techniques have been historically adopted to support the different phases of the Emergency Management cycle with a main focus on emergency response, initial recovery and preparedness through the acquisition, processing, management and dissemination o...
Article
Full-text available
The aim of the study is to identify flood events by comparing and integrating two methodologies based on different principles: the first is based on the identification of precipitation anomalies by the means of the analysis of pluviometric data, the second is focused on the analysis on remote sensed data for the detection of ground effects of flood...
Article
Among the major natural disasters that occurred in 2010, the Haiti earthquake was a real turning point concerning the availability, dissemination and licensing of a huge quantity of geospatial data. In a few days several map products based on the analysis of remotely sensed data-sets were delivered to users. This demonstrated the need for reliable...
Article
Full-text available
Haiti was hit by a devastating earthquake on 12 January 2010. Timely triggering of the Earth Observation satellites, and absence of cloud cover, allowed to acquire very high-resolution satellite imagery over the main affected areas within a few hours of the disaster. ITHACA performed a first damage assessment based on remotely sensed data, to suppo...
Conference Paper
UN World Food programme (WFP) is implementing its own Spatial Data Infrastructure (SDI), in the framework and following the guidelines developed by United Nations Geographic Information Working Group (UNGIWG) with the UNSDI initiative. This paper will present an updated situation report of WFP SDI implementation, project realized with the technical...
Article
Full-text available
Risk reduction and disaster respond experts working on flood related issues could greatly benefit from the availability of information such as the real extent of past flood events and the monitoring of flood extent during ongoing events. To respond to the afore mentioned needs, ITHACA is developing a tool devoted to the automated detection of flood...
Conference Paper
Full-text available
A complete understanding of the complexity of physical-ecological-anthropogenic systems is the objective for scientists that are faced with Global Change and its consequences; managing and modelling the dynamic interaction of natural and social systems is the key for a clearer understand of actual environmental processes and how they may evolve in...
Article
NEL CORSO DEGLI ULTIMI TRENT’ANNI IL NUMERO DI RICHIESTE DI INTERVENTO E DI AIUTO INTERNAZIONALE, A SEGUITO DI CONFLITTI SOCIALI, GUERRE E DISASTRI NATURALI, IN PARTICOLARE NELLE NAZIONI PIÙ POVERE DEL PIANETA, È IN FORTE CRESCITA. PER GLI OPERATORI UMANITARI È DIVENTATO PRIORITARIO RAZIONALIZZARE AL MASSIMO I COSTI DELLE OPERAZIONI DI EMERGENZA, A...
Article
Full-text available
Satellite images and GIS procedures are key elements for emergency management, especially in case of events hitting developing countries, more vulnerable to calamities and less prepared to face them. This article aims to show the procedure applied for the production of a cartography of flooded areas during the early impact phase; these activities a...
Article
Full-text available
This paper is focused on two main topics: crime scene reconstruction, based on a geomatic approach, and crime scene analysis, through GIS based procedures. According to the experience of the authors in performing forensic analysis for real cases, the aforesaid topics will be examined with the specific goal of verifying the relationship of human wal...
Article
Satellite images and GIS procedures are key elements for emergency management, especially in case of events hitting developing countries, more vulnerable to calamities and less prepared to face them. This article aims to show the procedure applied for the production of a cartography of flooded areas during the early impact phase; these activities a...
Article
The cyclone Nargis that hit Myanmar in May 2008 and the earthquake occurred a month later in the Sichuan Chinese province, prove that natural disaster, although forecasted, may cause enormous damages and thousands of victims. ITHACA (Information Technology for Humanitarian Assistance, Cooperation and Action) operates in the field of early warning a...
Article
a , O. Terzo b ABSTRACT: Short-term emergency response capacities, long-term risk reduction, development and environmental protection activities are sector where a Spatial Data Infrastructure (SDI) may strongly improve efficiency, facilitating access to geographically-related information using a minimum set of standard practices, protocols, and spe...
Article
Endorsement for a UN Spatial Data Infrastructure (UNSDI) to support coordinated efforts in the development and management of geo-spatial information was made by United Nations Geospatial Information Working Group (UNGIWG). World Food Programme (WFP), the largest humanitarian agency of United Nations, with its GIS operational units and the support o...

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