1. INFRACOMS appraisal toolkit for NRAs to assess emerging technologies in bridge and pavement managementKevin McPherson, Mogens Saberi, Fengqiao Zhang, Anna Arvidsson, Simon Fjendbo, Darko Kokot, Carl van Geem, Ali Yeganeh, 2025, objavljeni znanstveni prispevek na konferenci Povzetek: National Road Authorities (NRAs) draw on a wide range of technologies and tools to support robust decisions on asset maintenance. However, in recent years there has been significant progress in the development of sensing technologies for data collection and advanced techniques for data processing. These technologies present an opportunity to improve asset management decisions, but also present a challenge for NRAs, as they seek to realise the benefits. This contribution presents the appraisal methodology for emerging technologies proposed by the INFRACOMS project commissioned by the Conference of European Directors of Roads (CEDR). The methodology provides objective appraisals since technologies are scrutinised against proposed subsequent criteria. Cost factors, potential benefit categories and limitations are identified. Technologies are ranked by key imperatives and scored. Technologies with a good score are evaluated more thoroughly, which may need specialist input and discussions with the technology supplier. It results in a technical score, a benefit/cost assessment and identified steps in a roadmap toward implementation. The NRAs can share their individual appraisals in a database. The second part of the project develops an action plan to guide NRAs in adapting and implementing promising emerging technologies and training sessions on the use of the developed appraisal toolkit. Ključne besede: monitoring data, digitalisation, sustainability, sustainability, asset condition data, new technologies Objavljeno v DiRROS: 28.11.2025; Ogledov: 207; Prenosov: 111
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2. Skupnost znanja in inovacij EIT Urbana mobilnost – prijetnejše in bolj trajnostno bivanje v evropskih mestih z uporabo inovativnih rešitev : more pleasant and sustainable living in European cities through innovative mobility solutionsAnja Ilenič, Alenka Mauko Pranjić, Darko Kokot, Ana Mladenovič, Mateja Košir, 2021, strokovni članek Ključne besede: urbana mobilnost, mesta, urbano okolje, trajnostni razvoj, urbani izzivi Objavljeno v DiRROS: 05.08.2025; Ogledov: 512; Prenosov: 262
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3. Hi-SPEQ - Developing the technical and quality requirements for high-speed condition surveys of road networksAlex Wright, Emma Benbow, Roland Spielhofer, Leif Sjögren, Gregers Hildebrand, Darko Kokot, Mark Thomas, Rolf Rabe, 2016, objavljeni znanstveni prispevek na konferenci Povzetek: High speed surveys have become a key source of information to support condition assessment and management of pavement assets. These surveys can be applied network wide to obtain data on the surface condition and structural robustness of the pavement. The success of high speed surveys is demonstrated by the growth in the survey industry and the wide range of measurement equipment that has become available. However, these advances bring challenges to road administrations in determining the most appropriate survey to specify for their networks, in selecting the equipment, and in ensuring that the condition parameters delivered will be suitable to support asset management decisions. Although standards have been developed for some of the measurements provided by high speed systems, the focus tends to be highly technical, often not considering the wide ranging needs of routine network level implementation. The HiSPEQ project has the objective of developing guidance and advice to help road administrations to understand high speed road survey equipment, and to help them in specifying the survey requirements, quality regimes and processing procedures. The project has considered high speed survey data that can be used to assess pavement structural robustness. It has investigated the measurement of pavement shape, visual condition, deflection and structure. Via review of current specifications both within and outside the EU, and direct consultation with practitioners and administrations, the project has proposed a set of core requirements for high-speed surveys of pavement surface and structural condition. These requirements have been used to propose survey specification templates that road administrations could use when developing survey requirements for their own networks. Guidance has been developed to accompany the specifications, to assist road administrations understand the requirements and the implications of different levels of resolution and accuracy on the use of the data. The project has also proposed a set of quality assurance processes to consider when specifying condition surveys. Ključne besede: high-speed surveys, profile, shape, deflection, quality assurance, accreditation Objavljeno v DiRROS: 03.03.2025; Ogledov: 592; Prenosov: 330
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4. The potential for EVITA project e-KPIs to be used by Road AuthoritiesDarko Kokot, 2021, objavljeni znanstveni prispevek na konferenci Povzetek: Planning different strategies in road maintenance is one of the most important activities inroad asset management. Assessment of different strategies and their comparison can be done by implementing an appropriate measure - Key Performance Indicators (KPIs). KPIs are currently used in many Road Authorities, and systematic research on the subject and development of indicators has been ongoing for many years. The Conference of European Directors of Roads (CEDR) funded project “EVITA - Environmental Performance Indicators for the Total Road Infrastructure Assets” aimed at developing and integrating new and existing environ-mental KPIs (e-KPIs) into the asset management process, taking into account the expectations of different stakeholders (users, operators, residents, etc.). The research focus was on environmental areas: Noise, with KPIs on day-evening-night & night noise, exposed population, population with sleep disturbance; Air, with KPIs on CO2, NOx, NO2 and PM10 emissions; Water, with KPIs on water quality and salting of roads; and Natural resources and GHG emissions, with KPIs on resource consumption and CO2e calculation. The project outputs were a set of e-KPIs produced after a comprehensive investigation of the state of the art during the project. The main benefit of this project is therefore to provide an applicable solution for the environmental assessment of different road infrastructure assets and to describe the expectations of different stakeholders in form of objective indicators. The ‘User Evaluation Trial’ phase of the project was used to gather feedback on the potential of e-KPIs to be used by national Road Authorities across Europe. Two Slovenian Road Authorities and one each from Denmark and Sweden were involved. The Slovenian Authorities provided input data for case studies, while all evaluated the proposed e-KPIs from their own perspective, taking into account national conditions and specificities. Ključne besede: EVITA, environmental performance indicator, users’ feedback, stakeholder’ expectations Objavljeno v DiRROS: 22.02.2024; Ogledov: 1450; Prenosov: 1084
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5. CoDEC : connected data for road infrastructure asset managementSukalpa Biswas, Jacques Proust, Tadas Andriejauskas, Alex Wright, Carl van Geem, Darko Kokot, António Antunes, Vânia Marecos, José Barateiro, Shubham Bhusari, Uros Jovanovic, 2021, objavljeni znanstveni prispevek na konferenci Povzetek: Road infrastructure asset management is rapidly transforming into a digital environment where data accessibility, effective integration and collaboration and accessibility from different sources and assets are key. However, current asset management processes are not yet fully integrated or linked, and there are incompatibilities between various systems and platforms that limit the ability to integrate asset management with BIM. The CoDEC project has sought to understand the current status of information management for assets, including inventory, condition and new data sources such as sensors and scanning systems, to identify the challenges and needs for linking and integrating different data sets to support effective asset management. As a result, CoDEC has developed a data dictionary framework to help link/integrate static and dynamic data for the "key" infrastructure assets (road pavements, bridges, tunnels). This will enable BIM and Asset Management Systems (AMS) to exchange data and help optimise and integrate data management across systems and throughout the different asset lifecycle phases, from build to operation. This work will be followed up with three pilot projects to demonstrate the feasibility of integrating asset data from various sources through linked data/semantic web technology to build the connection between AMS and BIM platforms. Ključne besede: CoDEC, asset managemen, asset data, data dictionary, linked data, BIM, ontology Objavljeno v DiRROS: 22.02.2024; Ogledov: 1659; Prenosov: 607
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6. Vehicle–bridge interaction modelling using precise 3D road surface analysisMaja Kreslin, Peter Češarek, Aleš Žnidarič, Darko Kokot, Jan Kalin, Rok Vezočnik, 2024, izvirni znanstveni članek Povzetek: Uneven road surfaces are the primary source of excitation in the dynamic interaction between a bridge and a vehicle and can lead to errors in bridge weigh-in-motion (B-WIM) systems. In order to correctly reproduce this interaction in a numerical model of a bridge, it is essential to know the magnitude and location of the various roadway irregularities. This paper presents a methodology for measuring the 3D road surface using static terrestrial laser scanning and a numerical model for simulating vehicle passage over a bridge with a measured road surface. This model allows the evaluation of strain responses in the time domain at any bridge location considering different parameters such as vehicle type, lateral position and speed, road surface unevenness, bridge type, etc. Since the time domain strains are crucial for B-WIM algorithms, the proposed approach facilitates the analysis of the different factors affecting the B-WIM results. The first validation of the proposed methodology was carried out on a real bridge, where extensive measurements were performed using different sensors, including measurements of the road surface, the response of the bridge when crossed by a test vehicle and the dynamic properties of the bridge and vehicle. The comparison between the simulated and measured bridge response marks a promising step towards investigating the influence of unevenness on the results of B-WIM. Ključne besede: interakcija vozilo in most, terestično lasersko skeniranje, neravnost vozišča, numerično modeliranje Objavljeno v DiRROS: 26.01.2024; Ogledov: 1859; Prenosov: 870
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7. Assessment of social effects in asset managementDarko Kokot, Alfred Weninger-Vycudil, 2021, objavljeni znanstveni prispevek na konferenci Povzetek: The transnational European CEDR project ISABELA (Integration of social aspects and benefits into lifecycle asset management) was launched to define a common basis for social impact assessment in asset management. The aim was to define a holistic asset management framework for social key performance indicators (S-KPIs) and to model social benefits in terms of social effects (monetary and non-monetary), social backlog and social risk. These project results are becoming increasingly important in the context of evaluating different maintenance strategies for road infrastructure networks. While decision makers need to present the consequences of their maintenance strategies and policies on both technical and social levels, ISABELA showed how social aspects can be an integrated part in asset management frameworks, how to present social impacts and how to discuss maintenance needs using social aspects. The project aimed to identify clear and justifiable social key performance indicators in combination with existing technical parameters, taking into account different stakeholders and their needs and expectations. To this end, ISABELA considers maintenance aspects such as traffic availability, disturbance and efficiency (travel time, vehicle operating costs, etc.), road safety (fatal and serious accidents related to asset condition), environment (noise, air pollution, natural resources, etc.) and socio economy (asset value, wider social effects, etc.). In addition to the S-KPIs, ISABELA proposed a decision-making process for the selection of appropriate parameters and models, and demonstrated the assessment of social effects with practical examples. Ključne besede: CEDR, ISABELA Objavljeno v DiRROS: 25.01.2024; Ogledov: 1210; Prenosov: 815
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