| 81. |
- Knapskog, M., et al.
(författare)
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Sensors securing sustainable digital urban logistics-A practitioner's perspective
- 2022
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Ingår i: Frontiers in Future Transportation. - : Frontiers Media SA. - 2673-5210. ; 3
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Tidskriftsartikel (refereegranskat)abstract
- The transport of goods, equipment and waste to, from, in and through urban areas (urban logistics) are essential for the economic vitality of the city but at the same time make urban environmental and social targets more difficult to achieve The European Green Deal and the UN Sustainability Goals also challenge the ways of addressing planning and management. At the same time Covid 19 has led to new challenges for urban logistics together with changes in consumer purchasing and travel patterns. Digitalisation offers new ways of collecting data and providing input to planning and modelling of urban logistics that might alleviate these challenges. This article addresses how digitalisation and especially sensors can contribute to new forms of data for analysis and play a role in developing sustainable digital urban logistics measures and plans through data collection and sharing. The research contains empirical insights from a survey and workshop in Norway. The results from the survey show that sensors are the digital solution that practitioners see as most useful for urban transport. This is supported by results from the workshop supporting a sensor scenario. When it comes to the digitalisation process, the practitioners expect that the different levels of government will facilitate digitalisation of urban logistics and most practitioners have the opinion that all levels of government should do more to facilitate new solutions Testing should take place as collaboration between private and public actors. Due to Covid 19 the government level is seen to have an important role for exchange of information and advice, and for giving economic incentives and support, rather than providing law and regulatory changes or the reorganisation of public services. The local level is considered to have an especially important role for digitalisation including data for modelling, planning or public procurement procedures. The article addresses these questions by reference to the partnerships for freight transport in London and Gothenburg. This article adds insights for planning practitioners into how sensors will challenge as well as provide new possibilities, to suggest new paths for planning and modelling urban logistics and an amplified role for freight partnerships.
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| 82. |
- Kumar Kalahasthi, Lokesh, 1988, et al.
(författare)
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Joint modeling of arrivals and parking durations for freight loading zones: Potential applications to improving urban logistics
- 2022
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Ingår i: Transportation Research Part a-Policy and Practice. - : Elsevier BV. - 0965-8564. ; 166, s. 307-329
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Tidskriftsartikel (refereegranskat)abstract
- This paper analyzes truck parking patterns in urban freight loading zones by jointly modeling the vehicle arrival rates and the parking durations. Three models were explored: 1) Count data (Negative Binomial) for vehicle arrivals, 2) Survival (Weibull) model for parking duration and 3) A joint model for arrivals and duration. The count data model estimates the parking demand i.e., the rate of truck arrival, while the survival model estimates the probability that a truck is parked for one more minute. The joint model is compared with separate models for predictability and performance. The dataset used in this research is obtained using a mobile phone parking appli-cation, at eight loading zones in the city Vic, Spain over an 18-month period from July 2018 to December 2019, comprised of vehicle parking durations, date, time of arrival and departure, professional activity, and vehicle type (weight). The parking activity data are complemented with built in environment variables of the loading zones, such as the number of establishments in a certain radius, the average walking distance to establishments, the presence of pedestrian pavement, the number of traffic lanes, among others. The joint model outperforms the models estimating the arrival rates and durations separately in goodness of fit and predictability. The model results showed that truck arrival rates vary significantly across days of the week, months, and arrival times. The parking durations are highly dependent on professional activity, vehicle type, and size. Tuesdays and Wednesdays have higher arrival rates compared to other days of a week (except Sundays). Among activities, the transport and parcels require longer parking du-rations. Among the vehicle types, trucks with gross weight larger than 3.5 tons park longer. This paper concludes by explaining the potential of these modeling approaches in improving urban freight operations, evaluation of various policy implications, limitations, and future research.
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| 88. |
- Lindholm, Maria, 1979, et al.
(författare)
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COOPERATION AMONG URBAN FREIGHT STAKEHOLDERS: A COMPARISON OF PARTNERSHIP APPROACHES IN GOTHENBURG AND LONDON
- 2012
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Ingår i: Logistics Research Network (LRN) Conference, Cranfield, UK.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Purpose: Private companies perform transport operations in urban areas and the public sector regulates those operations and is responsible for much of the transport infrastructure. Nevertheless, until recently there has been little involvement of private companies in the local authority decision-making process. Freight quality partnerships have been acknowledged in the UK as a way of including urban freight stakeholders in the transport planning process and, there are other examples in Europe of similar networks. However, there are limited references to be found on the topic and little understanding of the importance of those interactions. Hence, the purpose of this paper is to compare the outcomes from two cities (London and Gothenburg) which have adopted a public-private partnership approach as one element of their transport policy. The objective of this comparison is to assess similarities and differences and to see if it is possible to identify the approaches that work best. Research approach: The research approach has included a literature review to explore the themes of partnership in urban freight policy. This has been followed by a detailed case study of the Central London Freight Quality Partnership (CLFQP) and the Gothenburg Freight Network (GFN). The comparative case study has relied on interviews, questionnaires and some participatory research. Findings and Originality: Not surprisingly the results show similarities and differences between the CLFQP and the GFN. Some of the clearest similarities concern the wide range of initiatives that have been discussed in both cities and the value placed on building longer term relationships between public and private stakeholders. Differences concern the organisation, the role of the public policy-making body and the funding arrangements. Lessons have been drawn from the comparison in terms of identifying features that can be considered most critical to success in developing and sustaining these public-private partnerships. Research Impact: The main research impact relates to the greater understanding that has been gained by taking an in-depth look at two partnerships in different cities (and countries). This has added to our understanding of the value of partnership in the field of urban freight transport where it is often advocated but in many cases the goals and the possible barriers successful implementation are rarely discussed. Practical Impact: Given the limitations on public funding at present it is essential to identify the most effective way to enable the public and private sector to work together. Understanding the best way to build and sustain a public-private partnership at the city level is an important contribution to practice.
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| 89. |
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| 90. |
- Lindholm, Maria, 1979, et al.
(författare)
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Local Authority Cooperation with Urban Freight Stakeholders: A Comparison of Partnership Approaches
- 2013
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Ingår i: European Journal of Transport and Infrastructure Research. - 1567-7141. ; 13:1, s. 20-38
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Tidskriftsartikel (refereegranskat)abstract
- Freight transport operations in urban areas are normally performed by private companies using public infrastructure and governed by regulations implemented by public authorities. Until recently there has been little involvement of private companies in local transport planning processes and as a result urban transport regulations and plans are frequently formulated with limited understanding of the impacts on freight transport operations. In the UK, freight partnerships have been developed to bring together public and private stakeholders often in an urban context and there are other examples elsewhere in Europe. Few of these partnerships have been assessed in order to compare their activities systematically. The paper compares several freight partnerships and considers their usefulness and possible shortcomings in terms of specific outcomes and projects as well as their input to and influence on policy formulation. Six partnerships are investigated by means of desk research, interviews and questionnaires and in two cases participation by the researchers. The freight partnerships are compared using an assessment framework derived from the literature review conducted. Results show that short-term actions solving specific problems are valued but are not perceived as the sole benefit of the partnerships. Longer-term relationships and mutual understandings of each other's problems and possibilities are considered equally important especially in respect of input to policy formulation by the local authorities. The results also show that one of the most important factors to support the on-going activities of a partnership is a core set of engaged and interested participants and several ways in which this can be achieved have been identified.
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