Put i SaobracajPub Date : 2021-12-17DOI: 10.31075/pis.67.04.01
Jacob Adedayo Adedeji, X. Feikie
{"title":"Exploring the Informal Communication of Driver-to-Driver on Roads: A Case Study of Durban City, South Africa.","authors":"Jacob Adedayo Adedeji, X. Feikie","doi":"10.31075/pis.67.04.01","DOIUrl":"https://doi.org/10.31075/pis.67.04.01","url":null,"abstract":"Road traffic fatality is rated as one of the ten causes of death in the world and with various preventive measures on a global level, this prediction is only placed on flat terrain and didn’t reduce. Nevertheless, road users’ communication is an essential key to traffic safety. This communication, be it formal or informal between the road users is an important factor for smooth traffic flow and safety. Communication language on roads can be categorized into; formal device-based signal (formal signal), formal hand signal (formal signal), informal device-based signal (informal signal), and informal gesture-based signal (everyday signal). However, if the intent of the message conveys is not properly understood by the other road user, mistakes and errors may set in. Overall, the formal signal is based on explicit learning which occurs during the driving training and the license testing process and the informal, implicit learning occur during the actual driving process on the road unintentionally. Furthermore, since the informal signal is not a prerequisite to driving or taught in driving schools, novice drivers are clueless and thus, might have contributed to errors and mistakes which leads to traffic fatalities. Therefore, this study seeks to document the informal means of communication between drivers on South African roads. Consequently, a qualitative semi-structured interview questionnaire would be used in the collection of informal signals, which were predominantly used on South African roads from driving instructors and thereafter, a focus group of passengers’ car, commercial and truck drivers will be used to validate the availability and their understanding of these informal signals using a Likert-type scale for the confidence level. In conclusion, the information gathered from this study will help improve road safety and understanding of road users especially drivers on the necessity of communication and possible adaptation for other developing countries.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69273333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nemanja Garunovic, V. Bogdanović, Slavko Davidović, Valentina Mirović, Jelena Mitrović Simić
{"title":"Characteristics of traffic flows at roundabouts in the city of Banja Luka before and during COVID-19 crisis","authors":"Nemanja Garunovic, V. Bogdanović, Slavko Davidović, Valentina Mirović, Jelena Mitrović Simić","doi":"10.31075/67.04.06","DOIUrl":"https://doi.org/10.31075/67.04.06","url":null,"abstract":"COVID-19 pandemic caused many restrictive measures. Most of these measures were in the relationship with the restrictions of mobility which caused some differences in traffic flow demands. In this paper the comparative analysis of traffic flow characteristics at roundabouts in the City of Banja Luka was conducted. The analysis included two different states of traffic condition: the first one, normal condition before COVID-19 crisis, and the second one, during the state of emergency caused by the pandemic. The analysis shows the difference between some of motorized vehicle and pedestrian traffic flow parameters.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69272563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Measuring regional accessibility with public transport – case of Koroška region, Slovenia","authors":"Simon Koblar","doi":"10.31075/67.04.07","DOIUrl":"https://doi.org/10.31075/67.04.07","url":null,"abstract":"Public transport plays a major role in sustainable mobility planning. This is even more obvious on regional level, where distances are often too long for cycling, therefore public transport remains only viable sustainable travel mode. In the process of preparation of regional SUMP, evaluation of accessibility is one of crucial steps. However, accessibility measurement can be a challenging task. In Slovenia, there have been several studies measuring frequency and access to closest stop, ignoring travel speed and destinations that could be reached. However rapid increase in computing power, software development and availability of schedule data in GTFS format, opened an opportunity to evaluate accessibility more precisely. We performed an analysis for Koroška region in Slovenia. Accessibility was measured with OpenTripPlanner with OpenStreetMap data for road network and schedules in GTFS format. Travel times were measured in both directions for all inhabited cells in a grid resolution of one hectare and central settlements of intermunicipal importance. The results of the analysis are important in terms of understanding how many citizens can access settlements of intermunicipal importance with public transport. This will serve as a baseline measure in regional SUMP preparation and will enable future iterations and comparisons. It also enables us to see the gaps in public transport supply and propose improvements. Open-source tools and open data enables this method to be used in other regions as well.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":"23 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69272575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Determination the influence of road factors on the occurrence of traffic accidents with dead pedestrians on the territory of Belgrade by independent estimates","authors":"Nenad Marković, Dalibor Pešić, Mladen Kovač, Emir Smailović","doi":"10.31075/67.04.08","DOIUrl":"https://doi.org/10.31075/67.04.08","url":null,"abstract":"The world is paying more and more attention to the safety of vulnerable road users, and especially the safety of pedestrians. The reason for that is the large representation of vulnerable participants in the total number of victims in traffic accidents. Belgrade stood out as especially unsafe for pedestrians, because their endangerment is higher than the world average, but also higher than in the rest of Serbia. In order to increase the safety of pedestrians, appropriate management measures are applied, which are, as a rule, based on the recognized influencing factors of the occurrence of these accidents. For that reason, it is extremely important to define the real influencing factors in the right way. One of the best tools for recognizing the impact of road factors is the independent assessment of the impact of the road on accidents, which the road manager, according to the Law, is obliged to conduct in the event of a traffic accident with fatalities. The paper analyzes 59 traffic accidents with dead pedestrians, which occurred in the period from 15.05.2019. to 06/02/2021 years on the territory of the city of Belgrade and for which an independent assessment of the impact of the road was conducted. The results indicate that the road factor had an impact on the occurrence of more than half of the traffic accidents with dead pedestrians. Also, the results indicate the existence of a number of different influencing factors, which indicates the need for further implementation of these analyzes. The paper presents characteristic examples of the most commonly identified influencing factors.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69272582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andraž Hudoklin, L. Mladenovič, Mojca Balant, T. Rye
{"title":"Effective measures in Sustainable urban mobility plans (SUMPs): Analysis of 10 (successful) European cities","authors":"Andraž Hudoklin, L. Mladenovič, Mojca Balant, T. Rye","doi":"10.31075/67.04.04","DOIUrl":"https://doi.org/10.31075/67.04.04","url":null,"abstract":"The paper presents results of an analysis of measures implemented in various European cities that have been effective in reducing the share of trips by car and increasing the shares of active mobility and public transportation. Ten cities with a significant modal shift from cars to public transportation and/or active mobility in a period of several years were analysed. For each city, an interview was conducted with a local expert. The questions focused on the reasons for successful changes in travel habits and the existence and relevance of the SUMP in bringing about these changes. The results show that all cities analysed have some form of SUMP, and many have additional, more specific documents. Most cities have been developing these documents and implementing the measures in them for many years. Furthermore, the modal shift was always the result of a combination of several push and pull measures. Cities implemented restrictive measures for cars as well as improved conditions for alternative modes of mobility and often focused on road space transformation.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69272520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Globočnik Žunac, P. Brlek, I. Cvitković, Goran Kaniški
{"title":"Mobility Trends and their effect on Traffic Safety During the Covid-19 Pandemic: Case Study Republic of Croatia","authors":"Ana Globočnik Žunac, P. Brlek, I. Cvitković, Goran Kaniški","doi":"10.31075/67.04.03","DOIUrl":"https://doi.org/10.31075/67.04.03","url":null,"abstract":"Safety analysis focuses on how traffic safety can change while mobility analysis is used to determine how people change travel behavior. The integration of mobility, safety and behavioral data related to COVID-19 can provide valuable insights to decision makers. Wide availability of mobile sensors has given us the opportunity to be able to assess changes in the performance and mobility of transport systems in, almost real time. The researchers also measured the impact of COVID-19 on human mobility using public mobile location data available from many companies such as Google and Apple, which is very useful for changing human mobility. The platforms produce aggregated metrics of daily mobility, including the purpose of travel, the mode of travel, and imputations of social demographics. Based on a comprehensive data set of people who participated in the collected accident data and mobile device data, we record the impact of COVID-19 on traffic safety. The paper systematically and statistically approaches the assessment of road safety in Croatia during the COVID-19 pandemic.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69272516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Put i SaobracajPub Date : 2021-10-03DOI: 10.31075/pis.67.03.04
D. Radovic, V. Bogdanović
{"title":"Research of time headways at roundabout approaches","authors":"D. Radovic, V. Bogdanović","doi":"10.31075/pis.67.03.04","DOIUrl":"https://doi.org/10.31075/pis.67.03.04","url":null,"abstract":"It is known that traffic flow characteristics have significant influence at the capacity of all functional segments of the road and street network. One of the most important traffic flow parameters which affect the capacity of roundabouts is follow-up headway at minor approaches of roundabouts. This traffic flow parameter, like the most others, depends on driver behaviour, i.e. local traffic conditions. This paper presents the research results related to follow-up headway at three roundabouts obtained by the photographic method. This data collection method is chosen because its application completely eliminates the impact of research at behaviour of traffic participants. After the research, a representative sample is formed and its processing and analysis led to conclusions about the value of follow-up headway at roundabouts which can be applied in standard procedures for capacity calculation at roundabouts in midsize cities of our region.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69273321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Put i SaobracajPub Date : 2021-10-03DOI: 10.31075/pis.67.03.02
M. Mladenović, Draženko Glavić, Marija Milenković
{"title":"The implementation of public-private partnership models in road engineering","authors":"M. Mladenović, Draženko Glavić, Marija Milenković","doi":"10.31075/pis.67.03.02","DOIUrl":"https://doi.org/10.31075/pis.67.03.02","url":null,"abstract":"Investment in road infrastructure, i.e. its construction and maintenance, requires significant financial resources. When it comes to undeveloped and developing countries with limited funds, the available resources must be exploited in the most rational manner while obtaining the maximum benefits. One of the possible solutions is a public-private partnership (PPP) model. This paper analyzes different examples of applying PPP models in road engineering and their different rates of success. The analysis highlighted several key factors for the success of road infrastructure designs financed according to a PPP model. The key factors involve the appropriate traffic flow prediction, high-quality design process and construction cost prediction, the public partner’s decisive and strong attitude in negotiation with the private partner, as well as the contract based on positive regulations and containing thoroughly defined obligations of all parties. The conducted analysis should help decision-makers when making decisions regarding the selection of the appropriate PPP model in road design.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69273283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Put i SaobracajPub Date : 2021-10-03DOI: 10.31075/pis.67.03.01
N. Ilić, Marijo Vidas
{"title":"Influence of weather conditions on the traffic flow parameters","authors":"N. Ilić, Marijo Vidas","doi":"10.31075/pis.67.03.01","DOIUrl":"https://doi.org/10.31075/pis.67.03.01","url":null,"abstract":"Changes in weather conditions affect people's lifestyle in many ways. This paper presents the influence of weather conditions on the parameters of traffic flows on a two - lane suburban road. Main goal for comparing parameters of traffic flow for bad and good weather conditions is to draw conclusions about which parameters and to what extent are affected by different weather conditions. Based on the foreign literature, it is necessary to define an appropriate research methodology adapted to local conditions and apply it in an adequate way in order to obtain the most accurate results and draw conclusions. In this study, the influence of rainfall on the reduction of anxiety and traffic flow in the vicinity of the town of Loznica is presented. Based on meteorological data for 2019, a sample of days and hours when it rained was determined and compared with days when there was no precipitation.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69273276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Put i SaobracajPub Date : 2021-10-03DOI: 10.31075/pis.67.03.07
Tijana Ivanišević, Aleksandar Trifunović, Sreten Simović, S. Cicevic
{"title":"The importance of using a retroreflective vest for the Е-bicycle speed perception","authors":"Tijana Ivanišević, Aleksandar Trifunović, Sreten Simović, S. Cicevic","doi":"10.31075/pis.67.03.07","DOIUrl":"https://doi.org/10.31075/pis.67.03.07","url":null,"abstract":"Logistic center’s location for goods distribution in Republic of Srpska can be asserted on many parameters from whom two has vital importance: geographical position and size of traffic flow. Special significance of these center’s are logistical diversity, especially where different branches of traffics are involved. Starting factors for developing such a center in Republic of Srpska are position on roads, rails and corridors. Main purpose of these centers are command gathering, sendig commands to transport vehicles, depo good if necessary, forming transport units and delivery. There are seven main criteria: social, law regulation, ecological, technical, economics and organization. To define these criteria survey is used, also every criteria is evaluated. Applying ARAS (A new Additive Ratio Assesment) mathematical method Doboj city is determined to be optimal location for logistical center development.","PeriodicalId":32747,"journal":{"name":"Put i Saobracaj","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48293015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}