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Thomas Alexander Sick Nielsen

Thomas Alexander Sick Nielsen
Danish Road Directorate / Vejdirektoratet · Planning and Analysis

PhD, cand.techn.soc.

About

124
Publications
37,465
Reads
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2,640
Citations
Additional affiliations
April 2016 - present
Danish Road Directorate
Position
  • Consultant
February 2011 - March 2016
Technical University of Denmark
Position
  • Senior Researcher

Publications

Publications (124)
Article
The simultaneous growth of textual data and the advancements within Text Analytics enables organisations to exploit this kind of unstructured data, and tap into previously hidden knowledge. However, the utilisation of this valuable resource is still insufficiently unveiled in terms of transport policy decision-making. This research aims to further...
Conference Paper
It is appealing to believe that adaptive cruise control (ACC) systems, the forerunner of autonomous driving systems, will provide congestion relief by allowing for more efficient driving. In the paper, we investigate this hypothesis by comparing the time safety gap of ACC systems (across manufactures) with the observed revealed safety gap of human...
Article
Understanding the functional geography of the metropolitan region, and developing location criteria for smart growth, requires analysis of subcentres and their effects. Subcentres were identified in the Copenhagen area based on spatial analysis of micro-level employment and retail data. Subcentres' effects on transport in addition to regional centr...
Article
The study focuses on mapping spatiotemporal patterns and detecting the potential drivers of traffic congestion with multi-source data. First, based on real-time traffic data retrieved from an online map, the k-means clustering algorithm was applied to classify the spatiotemporal distribution of congested roads. Then, we applied a geographical detec...
Article
Introduction With the overall aim to improve people's health through increased physical activity, an extensive cycling campaign was conducted in Denmark from 2015–2017. The campaign included local activities concentrated in four partner municipalities across the country and national campaign activities. After one year, the “cycling coach”, a custom...
Article
Full-text available
This study focuses on two central Scandinavian cities – Copenhagen and Stockholm – that are generally thought to be culturally close but have deviated with respect to cycling policies and infrastructure. Based on a survey including inhabitants of Copenhagen (n = 1110) and Stockholm (n = 1191), this study investigated whether cyclists in Copenhagen...
Article
Automation in transport is increasing rapidly. While it is assumed that automated driving will have a significant impact on travel demand, the nature of this impact is not clear yet. Based on an online survey (N = 3040), this study explores the expected consequences of automated driving in the Danish population. Participants were divided into three...
Article
This study applies micro-level transport survey data to assess the significance of Bikeability variables on the probability of cycling in trips to or from residential and workplace locations. The data and analysis were prepared to include measures at different spatial scales, including measures of density/accessibility and infrastructure provision...
Article
Cities around the world are constructing bicycle infrastructure to increase cycling. However, identifying efficient design solutions and determining how bicycle infrastructure planning knowledge can be integrated into comprehensive policy remains a challenge. The objective of this paper is to shed light on the strengths and weaknesses of current bi...
Article
Abstract This paper explores the urban form, demographic and socio-economic dependencies of walking, cycling and e-biking in Beijing based on a survey (N = 1427) of daily travel among residents in eight neighborhoods, enriched with urban form variables. The results show that walking is most frequently used, followed by cycling, which in turn is mor...
Article
This study focuses on three groups: cyclists, non-cyclists, and non-car owners and examines the significance of the perceived cycling environment, current travel behavior, urban form and socio-demographic variables for the respondents' attitudes towards future cycling and car purchasing. The paper uses survey data (N = 1427) collected in eight Beij...
Article
Full-text available
Objective The objective of the present study is to investigate the effects of improvements made to two large, interconnected bicycle infrastructure in the western suburbs of Copenhagen, Denmark, on bicycle volumes and mode share, and cyclists' behaviour, perceptions, and experiences. Methods Effects are assessed by analysing data from automatic...
Conference Paper
Full-text available
Vejdirektoratet har sammen med Wilke undersøgt danskernes forventninger til selvkørende biler med vaegt på accept, drivere, bekymringer og brugsforventninger. I overensstemmelse med andre undersøgelser forventer danskerne at køre mere i bil i en situation med helt selvkørende biler. Forventningen daekker både over øget kørsel hverdage og weekends/f...
Conference Paper
Full-text available
The Danish Road Directorate has long experience in planning for cycling and the use of bicycle data and indexes. A national cycling index, a bike-traffic-index, was established in 1985, based on bike-flows continuously counted in locations all over the country. The number of counting stations included in the index has been increased over time to im...
Article
Full-text available
I samarbejde med Københavns Kommune afprøvede CITS konsortiet potentialet i WiFi-baseret positionering med en forsøgsstrækning på H.C. Andersens Boulevard i vintermånederne 2014-2015. WiFipositioneringen giver et nyt datagrundlag for trafik- og bylivsundersøgelser, herunder f.eks. et grundlag for at følge både ophold og trafik med fokus på retning...
Article
This paper discusses the potentials of a mixed-methods approach to collecting, mapping, and analyzing cyclists’ experiences. By starting from an ethnographic perspective, data was gathered from urban cyclists in Quito, Ecuador to understand the contemporary factors that influence cyclists’ experiences. This approach seeks to challenge how technical...
Article
Full-text available
Denmark, as Europes second cycling nation after the Netherlands, has a cycling mode share of around 15% of all trips. Cycling was decreasing slowly through the 1990s into the 2000s, which inspired substantial investments and promotional efforts to reverse the trend. This paper uses Danish micro-level travel survey data series from 1996 through 2013...
Article
Full-text available
Urban growth management has become a common term to circumscribe strategies and tools to regulate urban land use in metropolitan areas. It is particularly used to counteract negative impacts of urban sprawl but also to frame future urban development. We discuss recent challenges of urban growth in 6 European and 2 US American city-regions. The pape...
Article
Full-text available
Urban growth management has become a common term to circumscribe strategies and tools to regulate urban land use in metropolitan areas. It is particularly used to counteract negative impacts of urban sprawl but also to frame future urban development. We discuss recent challenges of urban growth in 6 European and 2 US American city-regions. The pape...
Article
More targeted European policies promoting green travel patterns require better knowledge on differing mobility cultures across European regions. As a basis for this, we clustered the EU population into eight mobility styles based on Eurobarometer data. The mobility styles – including, for example, “green cyclists” and “convenience drivers” – differ...
Article
Physical inactivity of children and adolescents is a major public health challenge of the modern era but, when adequately promoted and nurtured, active travel offers immediate health benefits and forms future sustainable and healthy travel habits. This study explores jointly the choice and the extent of active travel of young adolescents while cons...
Technical Report
Full-text available
Available @: http://www.dtu.dk/-/media/DTUdk/Samarbejde/Skifergas_udredning/videnskabelig_udredning_af_international_viden_om_skifergas_relateret_til_en_dansk_kontekst.ashx?la=da Indvinding af skifergas har i de senere år påkaldt sig stigende interesse internationalt og i Danmark. På den baggrund har Miljø- og Fødevareministeriet bedt DTU, GEUS og...
Article
Full-text available
Today the interest in cycling is increasing worldwide and in many countries authorities are faced with the question how cycling can be promoted efficiently. In the Netherlands and Denmark, this question came up already in the 1970s when the downsides of the rapidly increasing motorisation became evident. At the time, in both countries large scale i...
Article
This study examines the effect of accessibility to urban jobs via a public transport system on individual earnings and commuting behaviour. The effect of improved public transport based accessibility on these outcomes is determined by exploiting the exogenous variation in access to a public rail and Metro system resulting from the construction of a...
Article
Full-text available
This paper compares indicators of polycentricity in a monocentric (MUR) and a polycentric urban region (PUR) in Denmark at two points in time (1982 and 2002). It describes how population, jobs and commuting indicators of polycentricity develop and interact over time. Both the MUR and the PUR tend towards more balanced development. The increasing si...
Conference Paper
Full-text available
Celebrated across Latin American cities, the bicycle has become a tool to promote more options for a healthy transit, environmental sustainability, and social inclusion in transit development. There has been a renaissance of bicycle infrastructure, open-street programs, and bike share programs internationally (Pucher et al. 2010) that has resulted...
Article
A multitude of studies have focussed on the connections between urban form, location and transport behavior to inform sustainable and resilient urban planning. However, few have studied the stability of urban form and location effects under changing economic conditions. This paper presents an analysis of the changes in urban form and location corre...
Article
Active travel of children and adolescents is a major public health challenge, which when promoted, offers immediate health benefits and forms future sustainable travel habits. Studies show that urban form is essential for encouraging children to use non-motorized modes. Existing studies have five limitations. Firstly, they explored the relationship...
Technical Report
Full-text available
Urbaniseringen, den stigende interesse for deleøkonomi, samt behovet for at sikre en bæredygtig bytrafik giver delebiler fornyet aktualitet. Udsigten til automatisering af transporten øger potentialet for delebiler yderligere. Delebilsudbuddet øges for at imødekomme ændrede forbrugsmønstre i befolkningen, og undersøgelser peger på, at delebiler kan...
Article
Full-text available
I forbindelse med et fagprojekt i by-og trafikplanlaegning har vi undersøgt ansatte og studerendes transport til DTU og stil-let spørgsmålet om, hvordan cyklisternes forhold kan forbedres. Et spørgeskema blev i april-maj 2014 distribueret gennem cam-pusnet, institut-mailinglister og facebook-sider for studerende. Undersøgelsen blev besvaret af 448...
Article
Full-text available
Este artigo discute o desenvolvimento de uma abordagem com métodos mistos para o estudo da mobilidade diária das crianças. O estudo aqui apresentado combinou pesquisa etnográfica com a tecnologia de GPS (Global Positioning System) e um questionário interativo que as crianças completaram via telefone celular. Esta metodologia permitiu produzir uma c...
Conference Paper
Full-text available
The Technical University of Denmark (DTU) has a long tradition for research and education in urban planning and sustainable urban development. An increasing societal focus on sustainability and urbanization in society supports this continuous focus on sustainable urban planning in technical educations. The focus on sustainable urban development inc...
Article
Full-text available
The association between neighborhood built environment and cycling has received considerable attention in health literature over the last two decades, but different neighborhood definitions have been used and it is unclear which one is most appropriate. Administrative or fixed residential spatial units (e.g., home-buffer-based neighborhoods) are no...
Article
Full-text available
"Igennem de seneste 4 år har en forskningsgruppe undersøgt, hvordan byerne kan gøres mere cykelvenlige og få flere danskere til at vælge cyklen frem for bilen. Her er et kort sammendrag af de vigtigste resultater fra Bikeability."
Article
Full-text available
An important driving force behind urban expansion is the growth of the urban population. But for Europe, this is not a sufficient explanation. The major trend is that European cities have become much less compact. Since the mid-1950s European cities have expanded on average by 78%, whereas the population has grown by only 33%. In the PLUREL project...
Article
This study explores the differences in safety perceptions and reported behavior of cyclists in mixed traffic between an emerging cycling city (Brisbane, Australia) and an established cycling city (Copenhagen, Denmark). Perceptions and reported behavior were retrieved from a custom-designed web-based survey administered among cyclists in the two cit...
Technical Report
Full-text available
Results from research based on Danish data and information into socio-demographic factors, long distance travel, land use and urban form, determinants of capacity utilization in freight, and the policy implications of research based knowledge
Conference Paper
Full-text available
The planning of the environment for pedestrians can be improved by using the newest gps tools for monitoring changes in human activity patterns in time and space. Using a personal GPS device, the locations and movements of respondents can be followed over a longer period of time. It will then be possible to analyse how the use of urban spaces are e...
Article
Full-text available
This article discusses the development of a mixed methods approach to the study of children’s everyday mobility. The study presented here combined ethnographic fieldwork with GPS (Global Positioning System) technology and an interactive questionnaire that the children completed via mobile phone. This methodology permitted the researchers to generat...
Book
Presently, peri-urbanisation is one of the most pervasive processes of land use change in Europe with strong impacts on both the environment and quality of life. It is a matter of great urgency to determine strategies and tools in support of sustainable development. The book synthesizes the results of PLUREL, a large European Commission funded rese...
Chapter
The peri-urban (sometimes also called the urban fringe) may be the dominant urban form and spatial planning challenge of the twenty-first century. In older industrial or post-industrial countries the peri-urban is a zone of social and economic change and spatial restructuring, while in newer industrializing countries, and most of the developing wor...
Article
In the Introduction to the book the spectre of urban sprawl was introduced. In subsequent chapters we have presented a detailed analysis of the dynamics and pressures facing the peri-urban zone of rural-urban regions and have examined a number of case studies. These revealed a range of different political, economic, spatial and environmental contex...
Article
Full-text available
I forbindelse med projektet ’Byen, Vejen og Landskabet’, der blev støttet af RealDania, blev der arbejdet med kortlægning og analyser af pendlingen baseret på Danmarks Statistiks arbejdsstyrke statistik, der giver enestående muligheder for at følge hvordan de kombinationer af bolig og arbejdsteder som befolkningen vælger ændrer den danske geografi...
Chapter
A spectre is haunting Europe. The name of the spectre is not communism (Engels and Marx 1848) but urban sprawl, a phenomenon which has little to do with communism, but the metaphor of describing urban sprawl as a spectre is not new, especially in the United States where sprawl is endemic and there is a widespread concern over its environmental and...
Article
The paper analyses the environmental correlates of cycling based on Danish transportation and urban form micro-data. The results show that established walkability factors such as density, connectivity and diversity are related to cycling, but access to retail concentrations/centres, public transportation level-of-service, as well as competition bet...
Article
This paper presents an approach to the collection, mapping, and analysis of cyclists’ experiences. By spatially relating located experiences to the availability of bicycle facilities and other aspects of the urban environment, their influence on cyclists’ experiences can be analysed. 398 cyclists responded and sketched their most recent cycle route...
Article
Cities are increasingly looking to cycling as a means to promote sustainability, liveability, and public health. Denmark is one of the European countries where cycling has remained significant – even in the motor age, and national strategies now aim to support and further increase cycling. The article presents the state of cycling in Denmark and Co...
Article
This paper is an empirical investigation of the relation between urban form and commuting behaviour in a polycentric urban region. It explores to what extent urban form and location variables help to explain commuting time, distance and mode based on an empirical case, East Jutland, which is a polycentric urban region in Denmark. Data from the Nati...
Article
Full-text available
Urban planning and development in Denmark can be characterised by a relatively strong planning framework. Land use scenarios based on empirically derived dynamics of urban growth are practically never applied. However, modelling approaches do offer a methodology to explore the pressures in an urban region, as well as an approach to understand urban...
Article
Since its introduction in the mid-1990s, the concept of polycentricity has had a fashionable status in the EU countries. Polycentricity is seen as a means to create a more balanced development and increase the competitiveness for more peripheral cities and regions based on increases in mass and exploitation of complementary assets. However, this “b...
Article
This article discusses the potentials of a mixed methods approach to the study of children's mobility patterns. The methodology presented here combined ethnographic fieldwork with global positioning system technology and an interactive questionnaire that children completed via mobile phone. This innovative methodology allowed the researchers to gen...
Article
Full-text available
Peri-urbanisation, as a process of the physical expansion of settlement areas but also socio-economic transformation, has been recognised as a major spatial development beyond the urban fringes. Agriculture, the main land use actor in the hinterlands of many urban areas is increasingly affected by urban encroachment, responds with adaptation strate...
Article
The article presents the results from a Danish representative study of the use of green areas; the importance of access; and the effect of access to green areas, as well as use frequency, on mental stress. Results indicate that the users of green areas are mainly attracted by the possibility of experiencing greenery and nature; that time constraint...