scholarly journals Hexagonal Zones in Transport Demand Models

2020 ◽  
Author(s):  
Jacek Chmielewski ◽  
Jan Kempa

Planning the development of transport systems, as well as assessing the effects of investment activities in the field of spatial development requires the use of appropriate IT tools enabling an objective assessment of investment intentions. In the field of transport analysis, one such tool is a transport demand model. Reproduction of transport-related processes is the main role of such transport demand model. This applies to both the transport of people and goods, and includes both residential travel and visitors travelling to and within the study area. The description of the process of creation and implementation of transport demands is usually based on the assumptions in the field of places of generation and absorption of travel - i.e. sources and destinations of travel. The generalization of the mathematical description of this phenomenon introduced the concept of transport zones, which are separated homogeneous areas of the study area, as sources and destinations of trips. Practice in the construction and use of transport models indicates that the problem of  defining transport zones requires further investigation. Increasingly extensive transport infrastructure data collected in open databases (such as OpenStreets) are encouraging a change in the approach to the problems of constructing transport zones. The current solutions are characterized by a high level of generalization of sources and destinations rather than detailed transport analysis. This article presents the author’s method of dividing the study areas into transport zones based on a uniform hexagonal system, explaining the basic assumptions and evaluating the pros and cons of this proposed system. Keywords: Transport, Demand models, Algorithms

2021 ◽  
Vol 13 (5) ◽  
pp. 2676
Author(s):  
Miriam Pirra ◽  
Sofia Kalakou ◽  
Angela Carboni ◽  
Mariana Costa ◽  
Marco Diana ◽  
...  

As sustainability is becoming a common practice in planning transport systems and mobility services, the designation and management of gender issues are of paramount importance. TInnGO is a European Project that has developed a network of 10 national Hubs to build the capacity to generate and apply evidence on gender equality and transport issues at the European level. This paper presents the project activities by introducing a relevant framework and exploring user mobility experiences based on gender to identify diversified needs and requirements. This process relies on the combination of a review of current gender-oriented experiences and practices in mobility with focus group activities conducted in four different EU cities. The insights obtained from these activities supported the design of a survey to collect information on socioeconomic, personal, and operational aspects to serve a gender-oriented transport analysis for all the Hubs. These preliminary analyses identified the main issues related to the female mobility experience, namely safety, security, accessibility, and transport reliability. Future research on the data collected through the survey would help operators in successfully improving their mobility offer to women.


Author(s):  
Alex van Dulmen ◽  
Martin Fellendorf

In cases where budgets and space are limited, the realization of new bicycle infrastructure is often hard, as an evaluation of the existing network or the benefits of new investments is rarely possible. Travel demand models can offer a tool to support decision makers, but because of limited data availability for cycling, the validity of the demand estimation and trip assignment are often questionable. This paper presents a quantitative method to evaluate a bicycle network and plan strategic improvements, despite limited data sources for cycling. The proposed method is based on a multimodal aggregate travel demand model. Instead of evaluating the effects of network improvements on the modal split as well as link and flow volumes, this method works the other way around. A desired modal share for cycling is set, and the resulting link and flow volumes are the basis for a hypothetical bicycle network that is able to satisfy this demand. The current bicycle network is compared with the hypothetical network, resulting in preferable actions and a ranking based on the importance and potentials to improve the modal share for cycling. Necessary accompanying measures for other transport modes can also be derived using this method. For example, our test case, a city in Austria with 300,000 inhabitants, showed that a shift of short trips in the inner city toward cycling would, without countermeasures, provide capacity for new longer car trips. The proposed method can be applied to existing travel models that already contain a mode choice model.


Author(s):  
Anna Hrytsyshyn ◽  

The article deals with the development of festival tourism in the second half of the 20th century. Festival tourism is referred to the special types of tourism and should satisfy specific needs of people during the trip. The motivational basis of the festival tourism is the desire of people to visit new places, regions and events in the world, including festivals. The article analyzes the main factors of the development of festival tourism in the second half of the 20th century after the end of the Second World War. Six main groups of factors are determined, in particular: civilization, sociological and psychological factors; economic factors; political factors; technological factors; ecological factors and tourism as a factor in festival development. It was established that the progress of civilization and higher incomes made it possible to satisfy the basic social needs in the highly developed countries, as well as to concentrate on high-level needs, including those connected with culture and entertainment, thus, also with festivals. The collapse of the USSR and the democratization of the post-communist countries in Europe caused the appearance of a new cultural and entertainment activity. Moreover, the authorities began to take more and more responsibility for the socioeconomic development of cities and regions, including the cultural aspect, which in turn resulted in promotion of local festivals. The development of transport infrastructure and modern information technologies has also positively contributed to the development of festival tourism. The ecological approach to life and to civilization in general is considered to be an important factor in the development of festival tourism in recent years.


2018 ◽  
Vol 170 ◽  
pp. 02021
Author(s):  
Olga Chudiniva ◽  
Marina Afonina

The development of “Smart Cities” is associated with a comprehensive study of the General system of settlement. The aim of the study is to use the system of indicators for the objective assessment of territories, as well as determining the effect of each part in the overall assessment of the functioning of the «Smart City». The leading method of research is a comparative analysis of international rankings, surveys of experts and a comprehensive study of indicators. The article analyzes the papers of specialists working in the field of research «Smart Cities» and technologies: Mueller, Battarra, Srivastava, Dolgikh etc. The basis for this work were the studies by authoritative rating organizations such as IESE Business School University of Navarra, Vienna University of Technology and Research Institute of technology and communications (NIITC, Russia) which allowed to generalize the available research from the perspective of sustainable development and use them on a concrete example.The authors have adapted the existing groups of indicators in relation to the SKOLKOVO innovation city, Russia. The applied system is represented by 7 groups and 23 indicators, which allow to present the planning aspect of the current urban planning structure with its impact on human capital, transport infrastructure, social cohesion, the state of the environment, etc. The work lets confirm the influence of the selected indicators on the development of SKOLKOVO (Russia) and use the obtained data for the rating of “Smart Cities” adapted for Russia. The materials of the article can be extremely useful in the designing of concepts for the development of territories focused on the use of smart solutions in order to minimize costs in the implementation of new solutions.


Author(s):  
Dewi Ulya Mailasari

<p class="05IsiAbstrak">This article describes the students’ difficulty in memorizing English vocabulary in Integrated Islamic Elementary School (SDIT) Amal Insani Jepara.  This study uses a descriptive qualitative method. The result denotes that students have difficulties in memorizing vocabulary including there is no visible intrinsic motivation from students, considering English as just another compulsory subject. In addition to the factors of integration and talent, it seems that attitudinal and motivational factors take the main role of the difficulties of students of SDIT Amal Insani in remembering English vocabulary. Students with a high level of intelligence coupled with high enthusiasm, because there is a reward from the teacher, easy to remember vocabulary as well as remembering other subject matter. Students with a priori and low motivation attitude find it difficult to remember the vocabulary that has been given.</p>


2018 ◽  
Vol 13 (1) ◽  
pp. 73 ◽  
Author(s):  
Freshty Yulia Arthatiani ◽  
Nunung Kusnadi ◽  
Harianto Harianto

ABSTRAKTujuan penelitian ini adalah untuk mendeskripsikan pola konsumsi ikan di Indonesia dan mengidentifikasi faktor-faktor yang mempengaruhi permintaan ikan menurut karakteristik rumah tangga di Indonesia. Penelitian ini menggunakan data SUSENAS yang dilaporkan oleh Badan Pusat Statistik pada bulan Maret 2016. Pola konsumsi ikan dianalisis menggunakan statistik deskriptif dan model permintaan ikan dianalisis dengan menggunakan pendekatan model Linnear Approximation Almost Ideal Demand System (LA/AIDS). Hasil riset menunjukkan bahwa pola konsumsi rumah tangga di Indonesia dikelompokkan menjadi konsumsi ikan air laut segar sebesar 22.10 kg/kapita/tahun, ikan air tawar/payau segar sebesar 16.75 kg/kapita/tahun, udang segar sebesar 9.58 kg/kapita/tahun dan ikan olahan sebesar 4.22 kg/kapita/tahun. Dugaan model permintaan memberikan hasil cukup baik dengan 82.15% dari semua peubah berpengaruh signifikan terhadap fungsi permintaan kelompok ikan dan koefisien determinasi sebesar 27.06%. Nilai elastisitas pendapatan mengindikasikan bahwa seluruh kelompok ikan merupakan barang normal dan ikan olahan cenderung inelastis, sedangkan dari nilai elastisitas harga menunjukkan tanda negatif yang sesuai dengan teori ekonomi. Nilai elastisitas silang antar kelompok ikan menunjukkan hubungan yang bervariasi antar kelompok. Implikasi kebijakan yang dapat disarankan untuk meningkatkan konsumsi ikan segar adalah dengan peningkatan ketersediaan ikan melalui kebijakan peningkatan produksi dan peningkatan efektifitas distribusi ikan. Kebijakan promosi dan edukasi masih diperlukan untuk meningkatkan konsumsi ikan olahan karena sifatnya yang inelastis  terhadap perubahan harga dan pendapatan.Title: Analysis of Fish Consumption Patterns and Fish Demand Model Based on Household’s Characteristics in IndonesiaABSTRACTThis study aims to describe the pattern of fish consumption in Indonesia and to identify factors affecting household’s fish demand in Indonesia as well as estimating the elasticities of income and price. The data analyzed were mainly obtained from the SUSENAS Database-a nation social economy survey  conduct by the Indonesian Bureau of Statistic (BPS- during march 2016. Fish consumption patterns were analyzed using descriptive statistical analysis, while fish demand models were analyzed by Linnear Approximation Almost Ideal Demand System (LA/AIDS). Research shows that household consumption patterns in Indonesia are grouped into consumption of marine fish at 22.10 kg / capita / year, freshwater/brackish fish at 16.75 kg / capita / year, fresh shrimp at 9.58 kg / capita / year and processed fish amounted to 4.22 kg / capita / year. The estimation of the demand model gives quite good results with82,15% of all variables have a significant effect on the demand function of fish groups and the coefficient of determination is 27.06%. The value of income elasticity showed that all fish groups are normal goods and were negatively related to prices. The cross elasticities showed variation relationship between fish groups. With such result, in order for the government to be able to push the fish consumption level furtherwould require an increasing fish availbility through policies to increase production and effectiveness of fish distribution for fresh fish. Meanwhile education and promotion policies are necessary to increase consumption of processed fish because of their inelastic demand for changes in prices and income.


Author(s):  
Mohammed Mouhcine Maaroufi ◽  
Laila Stour ◽  
Ali Agoumi

Managing mobility, both of people and goods, in cities is a thorny issue. The travel needs of urban populations are increasing and put pressure on transport infrastructure. The Moroccan cities are no exception and will struggle, in the short term, to respond to the challenges of the acceleration of the phenomenon of urbanization and the increase in demand for mobility. This will inevitably prevent them from turning into smart cities. The term smart certainly alludes to better use of technologies, but smart mobility is also defined as “a set of coordinated actions intended to improve the efficiency, effectiveness and environmental sustainability of cities” [1]. The term mobility highlights the preponderance of humans over infrastructure and vehicles. Faced with traffic congestion, the solutions currently adopted which consist of fitting out and widening the infrastructures, only encourage more trips and report the problem with more critical consequences. It is true that beyond a certain density of traffic, even Intelligent Transport Systems (ITS) are not useful. The concept of dynamic lane management or Advanced Traffic Management (ATM) opens up new perspectives. Its objective is to manage and optimize road traffic in a variable manner, in space and in time. This article is a summary of the development of a road infrastructure dedicated to Heavy Goods Vehicles (HGV), the first of its kind in Morocco. It aims to avoid the discomfort caused by trucks in the urban road network of the city of Casablanca. This research work is an opportunity to reflect on the introduction of ITS and ATM to ensure optimal use of existing infrastructure before embarking on heavy and irreversible infrastructure projects.


Sign in / Sign up

Export Citation Format

Share Document