72 research outputs found

    A Study of Transport Behaviour of Academic Communities

    Get PDF
    n important challenge to achieving sustainable university campuses is ensuring that the academic community makes sustainable transport choices. The objective of this study was to investigate the daily commuting patterns, identify the potential for change, and determine the factors and criteria affecting the transport decisions of academic communities of two universities located in Gdansk, Poland. This paper summarizes the results of trip generation measurements and a comprehensive online survey of 3678 respondents, including the universities&rsquo staff and students. Analysis of survey results revealed clear differences between students and university staff in terms of travel patterns and factors that influence their choices. Staff usually (57%) choose the car for daily commutes with students opting for public transport (59%). The choice of travel mode in particular groups is determined mostly by car availability, trip origin location, and accessibility. The choices also depend on transport user individual requirements such as trip quality, costs, or ecology. With approximately 1400 trips daily per 1000 students, the universities are large traffic generators. Thus, how the staff and students behave determines the effect the universities have on the urban transport system. Understanding the behaviour can help to estimate whether it can be changed and how. Document type: Articl

    Macro Models of Vehicle Kilometres Travelled

    Get PDF
    There are a number of ways to measure transport of which kilometres travelled is the most frequent macro indicator (at country level). It is used to estimate projected fuel consumption, potential number of vehicles, amount and type of exhaust fumes emissions and the number of road accidents and casualties. The paper presents macro models of vehicle kilometres travelled, built on the basis of data from some fifty countries worldwide. Next, the resulting model was calibrated for the conditions in Poland.

    Inteligentny system transportu dla aglomeracji tr贸jmiejskiej. Telekomunikacja i Techniki Informacyjne, 2009, nr 1-2

    Get PDF
    Wskazano przes艂anki zastosowania inteligentnych system贸w transportu. Opisano za艂o偶enia, koncepcj臋 architektury i funkcjonowania tr贸jmiejskiego inteligentnego systemu trasportu aglomeracyjnego TRISTAR oraz poszczeg贸lnych jego podsystem贸w

    Tools for Road Infrastructure Safety Management 鈥 Polish Experiences

    Get PDF
    AbstractThe objective of road safety infrastructure management is to ensure that when roads are planned, designed, built and used road risks can be systematically identified, assessed, removed and mitigated. There are a number of approaches to road safety management. European Union Directive 2008/96/EC requires EU member states to use four basic tools of road safety infrastructure management. An overview of the methods in these countries shows a variety of approaches to how these tools are used in practice. The paper presents a systematics of these tools and a concept of how they could be developed in Poland. It looks at the life cycle of a road structure and the requirements of risk management processes. The paper focuses on elements of scientific support to help build the necessary tools. To help with assessing the impact of a road project on the safety of related roads, a method was developed for long-term forecasts of accidents and accident victims and accident cost estimation as well as a risk classification to identify risks that are not acceptable risks. With regard to road safety audits and road safety inspection, a set of principles was developed to identify risks and the basic classification of errors and omissions. In the case of road network safety management, measures of individual and societal risk were selected. A method for classifying dangerous road sections was developed as well. An estimation is given of the consequences and effects of applying the tools of road safety management on the network of national roads in Poland until 2020

    ANALYSIS OF POSSIBILITIES FOR THE USE OF VOLUME-DELAY FUNCTIONS IN THE PLANNING MODULE OF THE TRISTAR SYSTEM

    Get PDF
    Summary. Travel time is a measure commonly used for traffic flow modelling and traffic control. It also helps to evaluate the quality of traffic control systems in urban areas. Traffic control systems that use traffic models to predict changes and disruptions in vehicle flows have to use vehicle speed-prediction models. Travel time estimation studies the effects of traffic volumes on a street section at an average speed. The TRISTAR Integrated Transport Management System, currently being deployed across the Tri-City (Gdansk, Sopot, Gdynia), is almost completed and data obtained from the System can be useful for the development of prediction models. A procedure for travel speed model selection for the Tri-City street network is presented in this paper. Matching of chosen volume-delay functions to the data obtained from the TRISTAR has been tested. Analyses have shown insufficient matching of functions that does not justify the possibility of their use in traffic control due to variability in different conditions of traffic, weather and, in the case of an incident, which justifies the need for further research aimed at satisfying matching of functions depending on the above-mentioned factors

    Lighting requirements for pedestrian crossings 鈥 positive contrast

    Get PDF
    For many years now in Poland there has been a large number of road accidents at pedestrian crossings during night periods [5, 11]. One of the technical solutions that can improve this condition is the use of proper lighting for pedestrian crossings. The designated pedestrian crossing should be visible in different weather conditions and at different times of the day. In case of night vision restrictions use artificial lighting of pedestrian crossings. At the same time, lighting of pedestrian crossings should ensure: proper conditions for the driver to recognise the traffic situation and observe the pedestrian's silhouette, and for the pedestrian to observe the surroundings, pedestrian crossings and upcoming vehicles. The article gives an opinion on the proposal of lighting requirements for dedicated luminaires, realizing positive luminance contrast, used in the area of pedestrian crossings together with the proposed measurement grids. Quantitative requirements have been formulated taking into account the gradation of lighting classes resulting from the current lighting standard

    Challenges and opportunities for pedestrian protection on roads and streets in Poland

    No full text
    Na polskich drogach rocznie ginie 800 pieszych (prawie 29% wszystkich ofiar 艣miertelnych wypadk贸w drogowych). Z tego powodu Polska jest krajem o najwi臋kszym ryzyku zagro偶e艅 wypadkami 艣miertelnymi w艣r贸d pieszych uczestnik贸w ruchu drogowego w Unii Europejskiej. W artykule opisano stan bezpiecze艅stwa ruchu pieszych w Polsce na tle innych kraj贸w europejskich. Przedstawiono charakterystyk臋 obszar贸w i okoliczno艣ci wyst臋powania wypadk贸w z pieszymi oraz propozycje dzia艂a艅 niezb臋dnych do poprawy bezpiecze艅stwa pieszych.Every year 800 pedestrians are killed on Polish roads (almost 29% of all road deaths). For this reason Poland is a country with the highest risk of fatal accidents among pedestrians in the European Union. The article presents the state of pedestrian traffic safety in Poland compared to other European countries. The characteristics of areas and circumstances of accidents with pedestrians as well as proposals of actions necessary to improve pedestrian safety are presented in the article

    Road safety problems and challenges in the New Decade

    No full text
    Po wieloletnim okresie systematycznego spadku liczby ofiar 艣miertelnych i rannych w wypadkach drogowych w ostatnich kilku latach nast膮pi艂a stagnacja, a nawet odwr贸cenie tej korzystnej tendencji. Pandemia COVID-19, w wyniku kt贸rej nast膮pi艂o zmniejszenie mobilno艣ci mieszka艅c贸w, przyczyni艂a si臋 do powrotu do tendencji spadkowej liczby ofiar 艣miertelnych i ci臋偶ko rannych. W artykule przedstawiono prognoz臋 liczby ofiar 艣miertelnych i ci臋偶ko rannych na koniec roku 2020 b臋d膮cego ostatnim rokiem realizacji IV Narodowego Programu BRD. Przedstawiono za艂o偶enia i wymagania Organizacji Narod贸w Zjednoczonych i Komisji Europejskiej skierowane do kraj贸w cz艂onkowskich w sprawie redukcji ofiar 艣miertelnych i ci臋偶korannych w wypadkach drogowych w Nowej Dekadzie (w latach 2021鈥2030). Przedstawiono tak偶e problemy i mo偶liwo艣ci realizacji tych wymaga艅 w Polsce.After many years of systematic decrease in the number of road fatalities and injuries, this favourable trend has stagnated or even reversed over the past few years. The COVID-19 pandemic, which resulted in a decrease in the mobility of inhabitants, contributed to a return to the downward trend in the number of deaths and seriously injured. The article presents the forecast of the number of fatalities and seriously injured at the end of 2020, which is the last year of implementation of the 4th National Road Safety Program. The assumptions and requirements of the United Nations and the European Commission addressed to the member states on the reduction of fatalities and serious injuries in road accidents in the New Decade (in the years 2021鈥2030) have been presented. The problems and possibilities of implementing these requirements in Poland have also been discussed
    corecore