Charlotta JohanssonLuleå University of Technology | LTU · Department of Civil, Environmental and Natural resources engineering
Charlotta Johansson
Ph.d., M.Sc. in Eng., Associate Professor
About
34
Publications
13,740
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
361
Citations
Introduction
Publications
Publications (34)
Worldwide, pedestrians make up close to half of all motor-vehicle related fatalities but disproportionally little of the research in Information Technologies (IT) in general and Intelligent Transportation Systems (ITS) in particular has aimed at pedestrian safety improvements. This paper analyses and compiles three different ways so that IT and ITS...
A synthesis of best practice was done to come up with a "best design" of crosswalks used by children. The analysis is based on studies from three sites in Sweden and three in Israel, research results concerning "ideal" interactions, and a review of additional countermeasures as described in the literature.
Our presumption is that actual vehicle spe...
In this paper, stakeholders’ expected benefits and concerns are presented regarding the development of Core Network Corridors (CNCs) within the European transport initiative, the Trans-European Network for Transports. An interview study was conducted with 23 stakeholders from different parts of the society in the Baltic Sea area. The results show t...
In this paper results are presented from document- and literature studies examining how the concepts of sustainability and sustainable development (economical, ecological and social) are used in the process of developing main transport corridors in the European Union. Particular focus has been placed on the Scandinavian-Mediterranean (ScanMed) tran...
IntroductionThis paper describes the modification and development of methodologies to assess the impacts of Intelligent Transport Systems (ITS) applications for Vulnerable Road users (VRUs) in the domains of safety, mobility and comfort. This effort was carried out in the context of the VRUITS project whose aim was to produce results at the EU-28 l...
In this paper governance for developing main transport corridors in the European Union was examined by means of document- and literature studies. European Union transport policy documents were studied as well as legislation regarding development of the trans-European transport network (TEN-T). One of the most strategic parts of the TEN-T, the Scand...
The EU-sponsored VRUITS project has prioritized ITS applications which have a potential to improve the safety, mobility and comfort of vulnerable road users (VRUs) and performed a quantitative safety, mobility and comfort assessment for the 10 most promising systems. The assessment methodology addresses not only the direct effects of the systems, b...
The findings in this chapter are part of a larger research study aiming to develop a methodology for creating customized management structures for transnational transport corridors. The chapter analyzes the management structures in two EU transport initiatives and interregional transport corridor. The Bothnian green logistic corridor (BGLC) project...
Interest in climate-sensitive urban design has grown in recent decades. Nevertheless, there are various difficulties associated with such an approach. One of these is the lack of simple comfort assessment tools. This article presents a method for microclimate assessment that is composed of a wind comfort analysis and a microclimate assessment based...
Urban life in the towns of the subarctic regions is affected by the severity of the local climate, which must be taken into account in urban planning. Previous studies show that the use of climate knowledge in urban planning is hindered by different constraints. In this study we focus specifically on the problems of incorporating microclimate facto...
Our cities should be designed to accommodate everybody, including children. We will not move toward a more sustainable society unless we accept that children are people with transportation needs, and 'bussing' them around, or providing parental limousine services at all times, will not lead to sustainability. Rather, we will need to make our cities...
This paper presents the results on two expert questionnaires focusing on the potential safety and mobility benefits to child pedestrians from targeted types of ITS. Questionnaire one was answered by 14 European experts and six North American experts and questionnaire two by 15 European experts, six North American experts and two Israeli experts. Fi...
Speed humps are a common physical measure installed at pedestrian crossings to reduce vehicle speeds therefore improve the safety and mobility of pedestrians at the crossing. The aim of this study was to determine whether variations in distance between speed humps and pedestrian crossings contribute differently to the safety and mobility of pedestr...
Pedestrians slipping and falling is a major safety problem around the world, not least in countries with long winters such as Sweden. About 25000-30000 people need medical care every year for treatment of fall injuries in Sweden. Use of appropriate shoes and anti-slip devices are examples of individual measures that have been suggested to prevent s...
The Swedish code concerning car drivers' responsibility to give way to pedestrians was strengthened in 2000. The primary aim of this study is to evaluate the short-term effects of the change in code. Another goal is to look at the effects of the reconstruction of four sites in Borås, Sweden. One site had changes made prior to the change of code, tw...
In May 2000, the Swedish code governing the conduct of drivers at marked crosswalks became stricter with the intent to improve safety and mobility for pedestrians. A crash analysis based on a macro study of all of Sweden suggests that the injury risk in marked, not reconstructed, crosswalks increased by 27% for pedestrians and 19% for bicyclists. T...
Vehicle speeds should be 30 km/h or less wherever children (regularly) cross streets. However, safety can be further improved at sites already reconstructed to ensure low speeds. Results based on field data collected at sites close to schools in Malmö, Trollhättan and Borås in Sweden, and analyses of Finnish and Swedish police-reported crashes incl...
The Swedish Vision Zero's goal is to eliminate all fatalities and incapacitating traffic injuries. One step toward Vision Zero is through traffic calming. Code changes are also part of this effort. The Swedish Code concerning car drivers' responsibility to give way to pedestrians was strengthened in 2000. A study was done to evaluate the short-term...
Children walk and travel by bicycle to a lesser extent than previously. Physical activities are generally positive from a health perspective and life quality perspective. The design of the traffic environment and the regulation of traffic can support safe and independent freedom of movement for children. Two sources were used to explore safety prob...
Already in 1982, the Swedish Road Safety Office presented guidelines on speed-reducing devices including proposed design for roads with bus traffic and other heavy-vehicle traffic. However up to now a fully acceptable design of humps on streets with regular bus traffic does not seem to be available. Results from research on this topic from the Stoc...
Children frequently lack the ability to correctly direct and maintain their attention on traffic, to judge speeds, and localize sounds. Compared to adults, they also have more limited cones of visions, less capacity to perform multiple tasks simultaneously, and less ability to control their impulses. Elderly people because of the ageing process som...
ICTCT, 21st workshop. Riga, Latvia, 30 - 31 Oct. 2008.
Transport Research Arena (TRA), Brussels, 7 - 10 June, 2010
Walk21, The 11th International Walk21 Conference and 23rd International Workshop of the International Co-operation on Theories and Concepts in Traffic safety, November 17-19, 2010, The Hague, Holland
In: Methorst R., Monterde i Bort H., Risser R., Sauter D. Tight M & Walker J (Editors) Pedestrian Quality Needs (PQN). Final Report of the COST Project 358, Cheltenham: Walk21 PQN handbook
. In: Methorst R., Monterde i Bort H., Risser R., Sauter D. Tight M & Walker J (Editors) Pedestrian Quality Needs (PQN). Final Report of the COST Project 358, Cheltenham: Walk21 PQN handbook