Periodica Polytechnica Transportation Engineering最新文献_第7页

Social Perception of Autonomous Vehicles 自动驾驶汽车的社会认知

Periodica Polytechnica Transportation Engineering Pub Date : 2023-02-13 DOI: 10.3311/pptr.20228

Nóra Krizsik, Tibor Sipos

引用次数: 1

Technological Aspects of Tendering in Rail Passenger Transport in Slovakia 斯洛伐克铁路客运招标的技术问题

Periodica Polytechnica Transportation Engineering Pub Date : 2023-02-13 DOI: 10.3311/pptr.20356

Zdenka Bulková, J. Gašparík, M. Poliak, Lumír Pečený

{"title":"Technological Aspects of Tendering in Rail Passenger Transport in Slovakia","authors":"Zdenka Bulková, J. Gašparík, M. Poliak, Lumír Pečený","doi":"10.3311/pptr.20356","DOIUrl":"https://doi.org/10.3311/pptr.20356","url":null,"abstract":"The market for rail services in EU countries has long been inaccessible to the private sector. Transport services were provided by national operators, which led to the prevention of participation in fair and non-discriminatory competition in the provision of rail transport services. It is necessary to analyse the overall development in the operation of rail passenger transport, including the entry of private operators into the rail infrastructure. Based on the knowledge of the current situation, it is necessary to take measures to achieve compliance with the requirements of Regulation (EC) No 1370/2007. The paper characterizes the current state and the process of organizing public tenders in the Slovak Republic based on a case study and their process and proposes the gradual steps of the public tender in the form of a schedule. An important point of the whole process of the organization of the public tender is the correct setting of competencies, determination of the subject of the public tender and to propose a uniform methodology of the public tender, which may, however, vary in individual states due to the conditions of national legislation. Part of the unified methodology is the determination of the phases of the public tender process, which are part of the schedule of the public tender. The schedule of the public tender shows the entire cycle, resp. the duration of each phase of the tender for each proposed group of measures taken.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42177023","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}

引用次数: 0

Bayesian Networks for the Driver Overtaking Assistance System on Two-lane Roads 双车道驾驶员超车辅助系统的贝叶斯网络

Periodica Polytechnica Transportation Engineering Pub Date : 2023-02-13 DOI: 10.3311/pptr.18459

S. A. Fadhil

{"title":"Bayesian Networks for the Driver Overtaking Assistance System on Two-lane Roads","authors":"S. A. Fadhil","doi":"10.3311/pptr.18459","DOIUrl":"https://doi.org/10.3311/pptr.18459","url":null,"abstract":"Unsuccessful overtaking maneuvers on two-lane rural roads are one of the major causes of road accidents in the 21st century. The complexity of this maneuver merits the adoption of a thorough method for developing a proposed assistance system to prevent accidents and consequently reduce the high number of fatalities and the associated economic costs. This study aims to introduce an intelligent Driver Overtaking Assistance System (DOAS) to assist drivers in performing overtaking maneuvers safely. The study also will introduce a method to assess the impact of all the influential variables related to the driver, vehicle, traffic, road, and the surrounding environment. In momentary driving situations, the DOAS uses the communicated information via Hello beacon messages (HBM) and a set of input sensors to measure the possibility of overtaking the preceding vehicle(s) proactively by considering whether the distance gap to the oncoming vehicle is sufficient for overtaking. Besides, the proposed system is a vehicle-based safety system based on the collection of contextual information from the driving vicinity to acquire all relevant information regarding the ambient driving environment and the vehicles involved in the overtaking. To do this, DOAS uses a Bayesian Network (BN) to model overtaking maneuvers. The work presented shows high accuracy and promising results in aiding safe overtaking, with significant improvements to overtaking maneuvers on two-lane rural roads.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44521867","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}

引用次数: 0

Asserting the Female Mobility Pattern as Smart Mobility Indicator: Lesson Learned From Bus Rapid Transit (BRT) Passengers in Indonesia 将女性出行模式作为智能出行指标:印尼快速公交(BRT)乘客的经验教训

Periodica Polytechnica Transportation Engineering Pub Date : 2023-02-10 DOI: 10.3311/pptr.19706

Fauzan Romadlon, Yudha Saintika

{"title":"Asserting the Female Mobility Pattern as Smart Mobility Indicator: Lesson Learned From Bus Rapid Transit (BRT) Passengers in Indonesia","authors":"Fauzan Romadlon, Yudha Saintika","doi":"10.3311/pptr.19706","DOIUrl":"https://doi.org/10.3311/pptr.19706","url":null,"abstract":"Female passengers dominate the mobility by employing Bus Rapid Transit (BRT) in Indonesia and they possess a unique travel pattern compared to men. Women require more genuine investment efforts in comfortable and safer infrastructure for accessing and utilizing public transportation. The implementation of a smart city is one of the infrastructure investments. Smart mobility is one of the service cluster divisions, and smart mobility indicators are taken into account in the implementation. The objective of this study is to convert female mobility patterns and attitudes toward BRT service into smart mobility indicators. The method used is quantitative, and the questionnaire is designed to poll 209 people. Chi-Square and Likert scale are employed to analyze those criteria. The results demonstrate that the BRT has provided the female passenger services that they require at the current service level. The passenger pattern demonstrates that women depend on the BRT service to meet their transportation needs. Furthermore, the ICT criteria as a core for smart mobility has been challenging for both parties (female passengers and BRT operator). The limitation of this study is that it cannot demonstrate empirically that smart mobility is free gender biased and gaps until public transportation is fully inclusive.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47319875","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}

引用次数: 1

Test Environments to Analyse Methodological Improvements of Cost-benefit Analysis for Transport Interventions 分析交通干预成本效益分析方法改进的测试环境

Periodica Polytechnica Transportation Engineering Pub Date : 2023-02-07 DOI: 10.3311/pptr.20996

M. Juhasz, T. Mátrai, Júlio Hennderson Oliveira da Cruz, Á. Török

引用次数: 0

Generalized Linear Modeling of Crashes on Urban Road Links 城市道路交叉口碰撞的广义线性建模

Periodica Polytechnica Transportation Engineering Pub Date : 2023-02-01 DOI: 10.3311/pptr.19119

A.A. Mekonnen, T. Sipos, Z. Szabó

{"title":"Generalized Linear Modeling of Crashes on Urban Road Links","authors":"A.A. Mekonnen, T. Sipos, Z. Szabó","doi":"10.3311/pptr.19119","DOIUrl":"https://doi.org/10.3311/pptr.19119","url":null,"abstract":"As crash data have distinctive behavior like over-dispersion, researchers have used statistical methods to deal with this unique behavior of crash data specifically. This study employed generalized linear modeling techniques to develop the model. It was assumed that the accident counts followed negative-binomial distribution, and the link function was chosen to be the log link function. Negative-binomial modeling technique was chosen over Poisson distribution because it is the most used technique by many researchers as crash data may encounter over-dispersion. The accident data set showed greater variability between its variance and mean. The accident frequency distribution is shown in this study that it is highly skewed, with a very high number of road segments registering zero accidents. Negative binomial distribution was chosen over Poisson distribution after comparing Akaike’s Information Criterion (AIC) and Bayesian Information Criteria (BIC). The method is widely applied to count data. Twenty-two parameters were estimated in the model. Since p < 0.05 in the omnibus test, the null hypothesis is rejected, which indicates that the model is reasonably fit. The strongest variables in the model were witnessed to be the length of the links, number of lanes, average daily traffic, bus lane, number of buses and trolleys, and HGVs.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44572013","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}

引用次数: 2

Improving Traffic Flow in Emerging Cities: A SIDRA Intersection Based Traffic Signal Design 改善新兴城市的交通流量：基于SIDRA交叉口的交通信号设计

Periodica Polytechnica Transportation Engineering Pub Date : 2023-01-26 DOI: 10.3311/pptr.18018

Oyetunde Oluwafemi Adeleke, D. Oguntayo, Iyunade Tiwalade Ayobami, G. Ogunkunbi

{"title":"Improving Traffic Flow in Emerging Cities: A SIDRA Intersection Based Traffic Signal Design","authors":"Oyetunde Oluwafemi Adeleke, D. Oguntayo, Iyunade Tiwalade Ayobami, G. Ogunkunbi","doi":"10.3311/pptr.18018","DOIUrl":"https://doi.org/10.3311/pptr.18018","url":null,"abstract":"Intersections in urban centers, especially those without any form of signalization, are accident hotspots. This, therefore, calls for ef-fective and efficient traffic management at the intersections for improved safety and efficient traffic flow. This study aimed to improve traffic flow at the Gaa-Akanbi intersection in Ilorin, Nigeria, using a traffic signal scheme. A traffic volume study and geometric features survey was carried out at the intersection. The traffic volume study was performed to determine the number, movement, and classification of vehicles at this intersection using the manual method of traffic count, while the geometric survey of the intersection was done using tape and Total Station. A 3-phase traffic signal was proposed. The optimum cycle length and signal setting were determined using SIDRA Intersection software by adopting the maximum average passenger car unit on the intersection and targeted level of service (LOS) \"D\". A traffic signal plan with a cycle length of 150 seconds was designed for the intersection. The amber time was considered to be 2 seconds for all phases, and green time of 48, 46 and 38 seconds was gotten for phases 1, 2 and 3, respectively; this timing ensures that minimum delay occurs at the intersection. The proposed traffic signal should be adopted at the intersection by the metropolitan traffic management agency to improve traffic management.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47951938","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}

引用次数: 1

Analysis of Technical Errors Made by Motorcycle Riders 摩托车驾驶员技术失误分析

Periodica Polytechnica Transportation Engineering Pub Date : 2023-01-23 DOI: 10.3311/pptr.18794

Péter Homonnai, Peter Mandoki

引用次数: 0

Analysis of the Emergence of Autonomous Vehicles Using Simulation-based Dynamic Traffic Assignment – The Case of Budapest 基于仿真的动态交通分配分析自动驾驶汽车的出现——以布达佩斯为例

Periodica Polytechnica Transportation Engineering Pub Date : 2023-01-20 DOI: 10.3311/pptr.20655

Anas Alatawneh, Mohamad Shatanawi, F. Mészáros

引用次数: 1

Optimization of VISSIM Driver Behavior Parameter Values Using Genetic Algorithm 基于遗传算法的VISSIM驾驶员行为参数优化

Periodica Polytechnica Transportation Engineering Pub Date : 2023-01-19 DOI: 10.3311/pptr.20106

D. Gunarathne, N. Amarasingha, Asiri Kulathunga, Vasantha Wicramasighe

{"title":"Optimization of VISSIM Driver Behavior Parameter Values Using Genetic Algorithm","authors":"D. Gunarathne, N. Amarasingha, Asiri Kulathunga, Vasantha Wicramasighe","doi":"10.3311/pptr.20106","DOIUrl":"https://doi.org/10.3311/pptr.20106","url":null,"abstract":"Modeling effective vehicular traffic is a highly contested topic, especially in developing countries like Sri Lanka, which has a wide range of driving conditions. VISSIM microsimulation software is currently used by Road Development Authority (RDA) and relevant authorities to perform traffic management solutions in Sri Lanka. However, it is required to do modifications to the existing driver behavior parameter values to effectively reflect the realistic traffic conditions observed in the real-world in the simulated model. The main purpose of this study is to calibrate the VISSIM driver behavior parameter values using a genetic algorithm (GA). The methodology and results of the VISSIM model’s sensitivity analysis and calibration, which was developed for the Malabe three-legged signalized intersection, are presented in this study. A sensitivity analysis was used to find the most sensitive driver behavior parameters. Using the multi-objective GA optimization tool in the MATLAB software's optimization toolbox, the optimum driver behavior parameter values for these identified most sensitive driver behavior parameters were determined. The findings revealed that GA optimization is effective in reducing the difference between observed and simulated results.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48236831","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}

引用次数: 0