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Wyszukujesz frazę "city traffic" wg kryterium: Temat


Tytuł:
The Reorganization of the Traffic in the city of Opole during the Renovation of Niemodliński Bridge
Autorzy:
Kozłowski, Wojciech
Oleś, Krystian
Buchta, Denis
Maślanka, Adrian
Marzec, Tomasz
Olejnik, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/504070.pdf
Data publikacji:
2016
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
traffic reorganization
traffic engineering
traffic design in the city
Opis:
In the near future the city of Opole, as well as the whole Opole Voivodship are going to suffer from a serious problem connected with the traffic system which provides for closing of the core bridge crossing from one part of the city to another one – the Ulga canal. The condition of the bridge crossing at Niemodlińska Street is constantly deteriorating. After the first expertise had been conducted by a construction supervision, the decision to close the bridge on 1st June 2015 was made. The decision is justified by the safety reasons and disastrous technical state of the bridge crossing. In order to delay the moment of the closing and lighten the bridge, the inside lanes were changed into bus lanes and thereby the centre of gravity has been moved closer to the bridge crossing axis. Cars are going to use outside lanes. In front of the bridge vehicles height limiters were set in order to eliminate trucks from the traffic. For this kind of vehicles a special detour was created (Wrocławska Street, Road No 45). After this procedure the next expertise of construction supervision was conducted whereby the exclusion of the bridge from the traffic was delayed for one year. For the time being, it is known that the third expertise is being prepared. During the bridge renovation the car drivers and public transport passengers who travel to work every day are going to come across the serious communication problem.
Źródło:
Logistics and Transport; 2016, 29, 1; 47-56
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies of electric drive with hydrostatic support
Autorzy:
Grzesikiewicz, W.
Makowski, M.
Knap, L.
Pokorski, J.
Powiązania:
https://bibliotekanauki.pl/articles/243753.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
hybrid drive
energy consumption
energy efficiency
regenerative braking
city traffic
napęd hybrydowy
zużycie energii
efektywność energetyczna
hamowanie regeneracyjne
ruch miejski
Opis:
In this article, results of experimental studies concerning the relief of a city car electric drive by means of hydrostatic drive support are presented. Experimental studies were performed using a laboratory station built for this particular purpose. Studies of basic properties of elements of hydraulic system and resistances in the mechanical system were performed. The results of experimental studies of a chosen sub-assembly of hydrostatic drive (i.e. hydro-pneumatic battery) are given. The resistances within mechanical system (flywheel) were determined. In the considered hybrid drive, electric drive is cyclically supported by hydrostatic drive during acceleration or regenerative braking of the vehicle. The results of experimental studies presented in this article were obtained on a designed and built laboratory station representing a model of a lightweight delivery van for city traffic and equipped with the studied hybrid drive. The obtained results suggest that there is a possibility considerably to increase the effectiveness of energy conversion in the electric drive of the vehicle by means of hydrostatic support. By applying the hydrostatic support in the electric drive, the load on the electric battery decreased, which positively influences the length of operation time.
Źródło:
Journal of KONES; 2018, 25, 1; 265-274
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conversion of energy in electric drive supported by the hydrostatic drive
Autorzy:
Grzesikiewicz, W.
Makowski, M.
Knap, L.
Pokorski, J.
Powiązania:
https://bibliotekanauki.pl/articles/247488.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
numerical simulation
hybrid drive
electric drive
hydrostatic drive
energy conversion
city traffic
symulacja numeryczna
napęd hybrydowy
napęd elektryczny
napęd hydrostatyczny
konwersja energii
ruch miejski
Opis:
In the article, a study of conversion of energy in a hybrid (electro-hydrostatic) drive of a utility van intended for city traffic is described. In this hybrid drive, the electric drive is periodically accompanied by hydrostatic drive, especially during acceleration and regenerative braking of the vehicle. We present a mathematical model of the hybrid drive as a set of dynamics and regulation equations of the van traveling at a given speed. On this basis, we construct a computer program, which we use to simulate the processes of energy conversion in electro-hydrostatic hybrid drive. The main goal of the numerical simulation is to assess the possibility of reducing energy intensity of the electric drive through such a support of the hydrostatic drive. Our results indicate that it is possible to significantly increase the efficiency of energy conversion in the electric drive by support of the hydrostatic drive. In the article, chosen results of simulation studies for multiple starting and braking the car are given, and they show a 30% decrease for energy drawn by the hybrid drive, compared to solely electric drive.
Źródło:
Journal of KONES; 2018, 25, 1; 143-150
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of software simulation as a supporting tool for reducing of traffic congestions
Autorzy:
Fedorko, G.
Neradilová, H.
Powiązania:
https://bibliotekanauki.pl/articles/263289.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
transport
city logistics
simulation
traffic
Opis:
Question of traffic congestions analysed within the framework of a city logistics is such problem, which is caused due to various factors. There are applied different methodological approaches in order to eliminate the traffic congestions. These methods are distinguished each other with regard to their complexity and applied tools. Among these tools just the software simulation plays an irreplaceable role. The software simulation method is an efficient decision-making tool, which is suitable for solving of the traffic problems during the individual solution phases. There will be presented in the following paper application possibilities of the software simulation methods that are specified for solving of the traffic congestions.
Źródło:
Archiwum Motoryzacji; 2015, 68, 2; 39-48
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Traffic congestion in chosen cities of Poland
Autorzy:
Caban, Jacek
Droździel, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2091192.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
logistyka miejska
TomTom Traffic Index
zatłoczenie dróg
city logistics
traffic congestion
Opis:
The dynamic development of motoring observed in the last two decades contributes to many negative phenomena occurring in road transport Distinguished among these negative phenomena are high share of car traffic, road accidents, emission of toxic exhaust fumes into the atmosphere, etc. For these reasons, many initiatives are taken in the field of road transport management and city logistics. Traffic problems are solved from many aspects, such as the development of transport infrastructure, changing of urban transport organisation, parking organisation in city centre and Park & Ride system, as well as the progress of alternative means of transport. The problem of traffic congestion in urban areas is still a current topic. This article presents the formation of congestion in urban areas in chosen big cities in Poland. The first part of the article deals with the theoretical issues of traffic flow and congestion formation in the city road networks. The second part of the article outlines the situation of transport congestion with these cities based on the worldwide TomTom Traffic Index within the period of 2008-2016. This study is a brief analysis of the trends relating to the transport congestion based on the TomTom Traffic Index in Polish cities, which will allow future researchers a wider study of this problem. The authors suggest some solutions to reduce the level of transport congestion and harmful emissions from means of transport.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 108; 5--14
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Opole – A Cyclist-Friendly City
Autorzy:
Kozłowski, Wojciech
Korzus, Paweł
Kos, Mateusz
Korzec, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/503840.pdf
Data publikacji:
2015
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
bicycle paths,
traffic engineering
personal city transportation
Opis:
The main objective of the paper is to present the way to modernize the network of cycling paths so that cycling is more pleasant, safer and more convenient [15]. We want to change the means of transport from the car or bus onto your bike.
Źródło:
Logistics and Transport; 2015, 28, 4; 51-58
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Noise Monitoring Networks as Tools for Smart City Decision-Making
Autorzy:
Sánchez-Sánchez, R.
Fortes-Garrido, J. C.
Bolívar, J. P.
Powiązania:
https://bibliotekanauki.pl/articles/177038.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
traffic noise
noise monitoring networks
smart city
pavement
Opis:
Noise Monitoring Networks (NMNs) have been implemented in many cities by town councils, allowing them to know, in real time, the environmental noise levels in the busiest streets by the continuous measurement of selected acoustic parameters throughout the year. NMNs are aimed at: 1) detecting areas of the city that breach guidelines for acoustic quality objectives; 2) obtaining noise data needed to develop and implement action plans; and 3) informing the public about the permissible acoustic pollution for different districts and times of day. The aim of this work was to analyse data from the NMN of the city of Huelva (Spain), in order to study the influence on the noise of re-asphalting the busiest streets. The street pavements improve LAeq, 24 h from 3 up to 8 dB(A), depending on the type of the route. These results could be used by council authorities in deciding when to undertake the re-asphalting of the streets of Huelva, and to select the type of asphalt that should be used.
Źródło:
Archives of Acoustics; 2018, 43, 1; 103-112
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Możliwości poprawy funkcjonalności i bezpieczeństwa przestrzeni ulicznej
Opportunities to increase the safety and functionality of the public space in urban areas
Autorzy:
Franek, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/145153.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Komunikacji Rzeczpospolitej Polskiej
Tematy:
organizacja ruchu w mieście
strefy płatnego parkowania
bezpieczeństwo pieszych
organization of traffic in the city
paid parking zones
pedestrian protection
Opis:
Przestrzeń w miastach stanowi jeden z najbardziej deficytowych i zarazem pożądanych zasobów, pomimo tego w polskich warunkach występuje często znaczna dysproporcja funkcjonalna geometrii ulic, w której największą szerokość zajmuje jezdnia oraz miejsca do parkowania, przy jednoczesnym marginalizowaniu ciągów pieszych i rowerowych. Tymczasem w obszarze zurbanizowanym, planowanie i projektowanie przestrzeni powinno być ukierunkowane na pieszego, a nie na przemieszczanie się pojazdów. W artykule przedstawiono przykłady działań mających na celu podniesienie jakości i bezpieczeństwa infrastruktury komunikacyjnej w miastach, jako działań pośrednich przy wprowadzaniu porządkowania parkowania, na przykład w ramach wdrażania strefy płatnego parkowania.
The ongoing boom of investments in the Polish cities, in which the development of transport infrastructure is one of the most important priorities should be used more often to increase its functionality, safety and design. In the urban space planning and design focus should be on pedestrians, not the movement of vehicles. The paper shows examples of measures taken to improve quality, including safety, of transports infrastructure in the cities, as indirect tasks when entering the parking organization, for example under an implementation of paid parking zones.
Źródło:
Drogownictwo; 2015, 3; 105-108
0012-6357
Pojawia się w:
Drogownictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decrease in ambient air lead concentrations in Varna, Bulgaria, associeted with the introduction on unleaded gasoline
Autorzy:
Chuturkova, R
Iossifova, Y.
Clark, S.
Powiązania:
https://bibliotekanauki.pl/articles/49246.pdf
Data publikacji:
2010
Wydawca:
Instytut Medycyny Wsi
Tematy:
environment monitoring
Bulgaria
Varna city
gasoline
unleaded gasoline
air lead
lead
programme effectiveness
traffic
city
lead level
Źródło:
Annals of Agricultural and Environmental Medicine; 2010, 17, 2; 259-261
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Traffic congestion level in 10 selected cities of Poland
Autorzy:
Caban, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2091213.pdf
Data publikacji:
2021
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
city logistics
economic
extra travel time
TomTom Traffic Index
logistyka miejska
gospodarka
dodatkowy czas podróży
Opis:
Transport has a great impact on human activities but contributes to many negative phenomena occurring in road traffic, for example, road traffic accidents, emission of toxic exhaust fumes into the atmosphere and a high share of cars in road traffic. For the above reasons, many initiatives have been taken in the field of road traffic management and urban logistics. Based on a literature review, it was found that the problem of the phenomenon of traffic congestion in urban areas remains an ongoing issue. In the first part of this article, the theoretical issues of traffic flow and congestion formation in the city road networks were presented. While the second part outlines the situation of transport congestion in 10 Polish cities based on the worldwide TomTom Traffic Index in the years 2008-2018. This study is a brief analysis of the trends relating to transport congestion based on the TomTom Traffic Index in these cities.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 112; 17--31
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematical Modelling of Sound Radiation from a T Junction of City Roads in Windy Conditions
Autorzy:
Piddubniak, O.
Piddubniak, N.
Powiązania:
https://bibliotekanauki.pl/articles/176734.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
T junction of city roads
traffic noise propagation
stationary phase method
acoustic pressure
power flow density
Opis:
The sound radiation from vehicles travelling on the city roads with T junction was considered. The wind effect on acoustic field was taken into account. The solution of this problem was found with the help of the integral Fourier transforms and stationary phase method as the superposition of solutions for the cases of vehicles moving along the straight roads and roads with right-angle bend. As an example, the numerical analysis of traffic noise characteristics was carried out for the T junction city road on one of streets in the town of Łódź (Poland).
Źródło:
Archives of Acoustics; 2016, 41, 3; 543-558
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of bird diversity as bioindicators in two parks, Kolkata, India
Autorzy:
Chowdhury, R.
Sarkar, S.
Nandy, A.
Talapatra, S.N.
Powiązania:
https://bibliotekanauki.pl/articles/11495.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
assessment
bird diversity
bioindicator
vehicular traffic
vehicular pollution
urban park
biomonitoring
landscape change
park
Calcutta city
India
Opis:
The trees of parks and gardens support many species, the survival of urban-dwelling species mainly bird species. Birds amongst other species provide a wide range of environmental and social functions to cities and urban dwellers. The present study aims to know bird diversity in two parks as bioindicator of automobile air pollution exposure, landscape changes and/or human interactions. The study areas were selected as per heavily-populated neighborhoods, nearby office buildings, nearby roads and continuous vehicular movements, human interactions as visitors, where high levels of human disturbance are common. The study was carried out at 2 sampling stations viz (i) Elliot park and (ii) Agri-horticulture Society. The bird species diversity was studied by qualitative and quantitative assessment. Indices were Species richness, Index of Dominance, Relative abundance, Shannon-Wiener Diversity Index and Evenness Index for birds for all selected sites were calculated using the statistical formulae. The present results as bioindicators bird species clearly indicate that the bird species are very few in numbers in both the parks. When comparison made between both the parks, it was observed less number of bird varieties (16 types) in Elliot park than varieties (9 types) more less in number in Agri-horticulture society. This study is a preliminary assessment of bird diversity but further researches are needed in relation to biochemical and genetic damage study as well as air pollution load by using instruments. In the present study it was concluded that the less numbers of birds and their different diversity indices were found a decreasing trends, though there no attempt has been made on physico-chemical properties of present air pollutants. The less number of varieties of bird species are as tolerant bioindicators, which may be due to the vehicular pollution and/or human interference and/or landscape changes due to nearby neighborhood blocks, office and residential buildings, continuous movement of vehicles etc.
Źródło:
International Letters of Natural Sciences; 2014, 11, 2
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of models to study traffic accidents on the final sections of access roads to the cities: a case study of three major Iranian cities
Autorzy:
Fallah Tafti, Mehdi
Roshani, Reza
Powiązania:
https://bibliotekanauki.pl/articles/1955155.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
traffic accidents
city access roads
entrance roads
traffic safety
accident prediction model
neural networks
wypadki drogowe
drogi dojazdowe do miasta
drogi wjazdowe
bezpieczeństwo na drodze
modele przewidywania wypadków
sieci neuronowe
Opis:
The final sections of main access roads to the cities require especial attention as the frequency of accidents in these road sections are considerably higher than other parts of interurban roads. These road sections operate as an interface between the rural roads and urban streets. The previous researches available on this subject are limited and they have also mainly focused on a narrow range of factors contributing to the accidents in these areas. The main contribution of this research is to consider a relatively comprehensive range of potential factors , and to examine their impacts through the development and comparison of both conventional probabilistic models and Artificial Neural Network (ANN) models. For this purpose, information related to the main access roads of three major Iranian cities were collected. This information consisted of accident frequency data together with the field observations of traffic characteristics, roadway conditions and roadside features of these roads. Various ANN and probabilistic models were developed. The frequency of accidents, i.e. fatal, injured, or damaged accidents, was considered as the output of the developed models. The results indicated that a hybrid of ANN models, each comprised of 10 input variables representing traffic, roadway and roadside conditions, outperformed several probabilistic models, i.e. Poisson, Negative binomial, Zero-truncated Poisson, and Zero-truncated Negative Binomial models, also developed under similar conditions in this study. Moreover, effective roadway width, roadway lighting condition, the standard deviation of vehicles speed, percentage of drivers violating the speed limit, average annual daily traffic, percentage of heavy goods vehicles, the density of roadside commercial and industrial land uses, the density of median U-turns, the density of local access roads, and the effective width of the left-side shoulder were identified as the most effective factors contributing to the accidents in these areas. The developed ANN model can be used as a tool to predict accident rates in these road sections, and to estimate a potential reduction in the accident rates, following any improvements in the major factors contributing to the traffic accidents in these areas.
Źródło:
Archives of Transport; 2021, 59, 3; 129-148
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Telematics tools as the support for unloading bays utilization
Autorzy:
Kijewska, K.
Iwan, S.
Nürnberg, M.
Małecki, K.
Powiązania:
https://bibliotekanauki.pl/articles/393585.pdf
Data publikacji:
2018
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
unloading bays
city logistics
efficiency
mobile devices
traffic detection
vehicle sensors
zatoka rozładowcza
logistyka miejska
efektywność
urządzenia mobilne
wykrywanie ruchu
czujniki pojazdów
Opis:
Unloading bays are one of the most popular and simple to implement measures in city logistics systems. The main strength of this measure is that it effectively reduces congestion effect due to that loading or unloading operations are realize in special area and not influence directly on traffic flow. However, the most important problem in utilization of unloading bays is their inappropriate use (as a normal parking space, not only for delivery vehicles during the delivering process) and the conflicts between users in the case of few deliveries at the same time and with utilization of the same unloading bay. The way to solve these problems is implementation of the telematics tools. The paper is focused on examples of utilization of mobile devices and sensors as the support for the unloading bays booking and use.
Źródło:
Archives of Transport System Telematics; 2018, 11, 4; 23-28
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utilization of portable traffic detectors as the support for the data collection process in city logistics systems
Autorzy:
Kijewska, K.
Iwan, S.
Powiązania:
https://bibliotekanauki.pl/articles/393279.pdf
Data publikacji:
2019
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
data acquisition
traffic detection
portable detector
city logistics
urban freight transport
vehicle classification
Pozyskiwanie danych
wykrywanie ruchu
detektor przenośny
logistyka miejska
miejski transport towarowy
klasyfikacja pojazdów
Opis:
One of the most important problem in the analysis of city logistics systems is data collection. The solution, which could support this process is utilization of independent, easy to use devices. The paper is focused on the example of utilization the portable road traffic detectors. These devices are easy to use tools, which can help to collect traffic data including the vehicles classification. The Authors will introduce an example of practical utilization of this kind of device, Sierzega SR4, as well as the advantages related to that.
Źródło:
Archives of Transport System Telematics; 2019, 12, 1; 29-35
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł

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