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1
Content available Simulation model of transport system of Poland as a tool for developing sustainable transport
Jacyna M., Wasiak M., Lewczuk K., Kłodawski M.
Archives of Transport
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2014
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Vol. 31, iss. 3
23--35
EN
Paper presents features of simulation model of proecological transport system on the example of Poland. Model allows computational experimentation and inference on transport modal split and emission of pollution in national transport system. Particular elements of the model are characterized: transport networks for different modes, stock of vehicles, demand model for passenger and freight transport, and mechanism of material and passenger flows distribution into a network. Characteristics describing infrastructure, vehicles, and harmful compounds of exhaust gases are given. Model is implemented in PTV VISUM. Road and rail vehicles for passenger and freight transport are characterized and divided into groups according to types. The demand for transport services and emission of exhaust gases components are reflected in model of proecological transport system of Poland. The last part of paper presents exemplary results of research on estimating emission from transport activities.
2
Content available Models of traffic flow distribution for various scenarios of the development of proecological transport system
Jacyna-Gołda I., Żak J., Gołębiowski P.
Archives of Transport
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2014
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Vol. 32, iss. 4
17--28
EN
The paper is a result of a research work concerning the development of an environmentally friendly transport system - Project EMITRANSYS. The publication contains the issues of shaping the transport system, where important factor due to the aspect of sustainable development is including the external costs in transport activity. This paper presents a mathematical model of the distribution of the traffic flow in the transport network. The paper presents selected aspects of the problem of multi-variant distribution of the traffic stream on the network transport for defined scenarios for the transport system development. Traffic distribution on the network has been made due to the criterion function – external cost connected with air pollution. The paper presents modal split of traffic ecological flow for chosen scenarios of the development domestic transport system.
3
Content available Analysis of the traffic stream distribution in terms of identification of areas with the highest exhaust pollution
Ambroziak T., Jachimowski R., Pyza D., Szczepański E.
Archives of Transport
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2014
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Vol. 32, iss. 4
7--16
EN
Transport is a sector that is said to be negatively affecting the environment. The continuous development of transport increases the negative impact on the environment and civilization. In the article authors present the parameters that were used to describe the size of harmful transport exhaust emissions, in particular by means of road transport and the factors affecting their size. The areas where the level of concentrations of air pollutants are exceeded in Poland were characterized and analysed. Also examples of the stream traffic distribution in the selected area of the transport network were presented.
4
Kształtowanie ruchu w mieście i zrównoważony rozwój
Sierpiński G.
Logistyka
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2010
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nr 6
PL
Okres występowania zatłoczenia ulic w miastach stale się wydłuża powodując wzrost strat czasu uczestników ruchu. Pojazdy oczekujące na przejazd stają się przyczyną wzrostu hałasu i zużycia paliw oraz większej emisji szkodliwych substancji do otoczenia na obszarze występowania kongestii. Jak pokazują doświadczenia z wielu krajów rozbudowa układu ulic poprzez dodawanie kolejnych pasów ruchu nie przynosi rezultatu. Jednym z sugerowanych rozwiązań globalnego problemu staje się zrównoważony rozwój. Realizacja założeń zrównoważonego rozwoju transportu wymaga podjęcia działań w kierunku zmiany podziału modalnego ruchu. W artykule przedstawiono możliwości równoważenia ruchu we współpracy z rozwiązaniami telematycznymi i ich wpływ na zarządzanie mobilnością w mieście.
EN
The period when the congestion in the streets of the cities occurs has been consistently extending causing the increase of losses incurred by the traffic participants. The vehicles in a standstill have caused an increase of noise, of fuel consumption and of the harmful emissions at a relatively small territory where congestion takes place. The experience from a number of countries proves that the extension of the road layout by adding additional traffic lanes does not bring about the desired result. One of the suggested solutions to the global problem is the sustainable development. The implementation of the assumptions of the sustainable development of transportation requires undertaking the actions towards the modification of the model structure of traffic. The paper presents the possibilities of balancing the traffic and their influence on the management of mobility in the cities.
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