1,722,784 research outputs found
Effectiveness of variable message sign information in urban areas: the evidence from Europe
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Quantifying the potential savings in travel time resulting from parking guidance systems - a simulation case study
No full textParking Guidance and Information (PGI) signs are thought to enable a more efficient use of the available parking stock. Despite the installation of PGI systems in many cities and their operation for a number of years, there is a lack of reliable evidence of the size of the benefits that these systems can achieve. This paper describes the development of driver parking choice models (both during the journey and pre-trip) and the implementation of these models in the existing network traffic simulation model RGCONTRAM. Besides quantifying the effects of the PGI system on both the drivers seeking suitable parking spaces and the parking stock itself, this also enables quantification of the impact of parking choice on the wider network. Factors influencing PGI effectiveness are described and conclusions are drawn that illustrate the potential of PGI to induce the demand to spread more efficiently across the parking stoc
Transport visions: a young professionals’ perspective
No full textUK transport policy and practice is in transition. Traditionally a nation of road builders, we are now entering a transport future in which managing demand for transport networks and finding viable alternatives to the car as a means of travel are being developed and promoted. Integration is at the heart of the new transport agenda and involves integration both within and between modes and between transport and other areas. In recognising the importance of integration it is necessary to acknowledge the associated complex series of interactions and relationships that dictate the eventual success or otherwise of new policies and practices. The information and technology revolution, improved standards of living, new household structures and freedom of choice are just some of the contributors to a rapidly changing society. To accommodate such change there is a need to ensure that the transport debate that has taken place in the UK in recent years continues. Imagination, innovation and vision must be harnessed to explore the numerous possibilities for the future of transport and to attempt to identify the most suitable way forward. Contributions to the transport debate and to transport vision documents come predominantly from the ranks of senior professionals. Yet the young professionals of today will be the decision makers responsible for the shaping of transport at the beginning of the next millenium. This paper outlines the contribution that young professionals can make to the transport debate. In particular it describes the outcome of an initiative of the World Road Association (PIARC) to solicit transport visions from young professionals across the world. It then introduces a new initiative being led by the Transportation Research Group (TRG) at the University of Southampton and funded by the Engineering and Physical Sciences Research Council (EPSRC), namely the establishment of a Young Professionals’ Network which seeks to produce a series of thematic transport vision documents
Modelling passenger demand in ATT environments: a way forward
No full textThis paper critically examines the state-of-the-art in urban passenger travel demand modelling in the light of Advanced Transport Telematics (ATT) needs and implications. It is concluded that most existing models lack a strong behavioural content, and as such are unsuitable for analysing the experience, behaviour and travel choices of individuals within an ATT context. In particular, the ability of the models to facilitate interactions between short-term responses to ATT and long-term changes in attitudes is very limited. Another limitation is the inability to deal with pre-trip planning and en-route updating of travel plans within a multi-modal, multi-media, integrated urban transport context. Finally, most existing models do not have an extendible structure to cope with new aspects of traveller-ATT interactions and provide flexibility to users. The development of modelling systems capable of incorporating ATT needs and implications requires extensive research on behaviour and attitudes towards information and information technology and towards transport needs and use in the short and long term, dynamic transport modelling, multi-modalism, and on applications of a variety of computing methods in transport
Simulating the effectiveness of parking guidance systems
No full textParking Guidance and Information (PGI) signs have the potential to reduce the amount of time spent searching for parking spaces and enable a more efficient use of the available parking stock. Given the significant installation costs for PGI signs and operating equipment, it is essential that the benefits of PGI systems can be justified. Despite PGI systems being installed and operating for a number of years in some cities however, there is a lack of reliable evidence of the economic benefits.This presentation describes the development of driver parking decision models using an interactive travel simulator and the implementation of these models in the existing traffic network simulation model RGCONTRAM. As well as assessing the effects of the PGI system on the drivers seeking parking spaces and the parking stock itself, this also enables the impact on the wider network to be examined.The effect of various factors such as sign location and density, operational characteristics and network layout is examined and results are given that illustrate the potential of PGI signs to induce the demand to spread more evenly across the parking stock. The potential economic benefits of PGI systems are quantified and recommendations are given on designing systems for optimum benefit
Utilizing a multi-agent simulation model with consideration of social aspects to predict the impact of a demand management measure on travellers' behaviour
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