Periodica Polytechnica Transportation Engineering最新文献

Investigating the Preference on Public Transport in a Metropolitan Area of Lampung Province, Indonesia 印度尼西亚楠榜省大都市区公共交通偏好调查

Periodica Polytechnica Transportation Engineering Pub Date : 2024-07-24 DOI: 10.3311/pptr.23304

Aleksander Purba, Rahmatulloh Akbari, Ratna Widyawati, Kristianto Usman, John Tampil Purba

{"title":"Investigating the Preference on Public Transport in a Metropolitan Area of Lampung Province, Indonesia","authors":"Aleksander Purba, Rahmatulloh Akbari, Ratna Widyawati, Kristianto Usman, John Tampil Purba","doi":"10.3311/pptr.23304","DOIUrl":"https://doi.org/10.3311/pptr.23304","url":null,"abstract":"Metropolitan areas grow and develop as the region's population grows and travels to meet needs such as education, work, family matters, and business. Kotabumi and Bandar Lampung are two of the regions that have grown faster in recent years as a result of the construction of the trans-Sumatera toll road, while railway has been operating for more than two decades. The main objective of this works is to explore preference towards public transport with service quality attributes. The minibus mode or \"travel\" in Indonesia is defined as transportation services that pick up passengers. This study surveyed 384 commuters who used three modes of transportation: rail, bus, and minibus with relatively different service characteristics and trip purposes of school/college (35%), leisure (28%), family affairs (19%), work (14%), and business (4%) and represented predominantly an age range of 17 to 55 years (97%). The rail mode's utility value was 4.383, while the bus and minibus modes' utility values were 3.751 and 3.737, respectively. Because utility value reflects the level of user satisfaction with the overall attributes and service quality, the rail mode has a much higher probability of being chosen by respondents, with a probability level of 48.65%, compared to the bus and minibus modes, which have a probability level of 25.86% and 25.49%, respectively.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":"11 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141806423","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

Secure Travel Planning Using a Heuristic Algorithm 使用启发式算法进行安全旅行规划

Periodica Polytechnica Transportation Engineering Pub Date : 2024-07-02 DOI: 10.3311/pptr.36997

Ali Jamal Mahdi, D. Esztergár-Kiss

引用次数: 0

Verification of Railway Control Systems Using Model Checking and CTL, Explained Through a Case Study 利用模型检查和 CTL 验证铁路控制系统，通过案例研究加以说明

Periodica Polytechnica Transportation Engineering Pub Date : 2024-06-04 DOI: 10.3311/pptr.23344

Gábor Lukács, Tamás Bartha

{"title":"Verification of Railway Control Systems Using Model Checking and CTL, Explained Through a Case Study","authors":"Gábor Lukács, Tamás Bartha","doi":"10.3311/pptr.23344","DOIUrl":"https://doi.org/10.3311/pptr.23344","url":null,"abstract":"Systematic faults can often occur during the development of a system. The later such faults are discovered, the more expensive it can be to correct them. In systems engineering practice, there are many methods and tools to reduce the likelihood of systematic faults. In this paper, we present the application of a formal model–based verification technique – called model checking – to assist railway engineers in designing and verifying the safety-related functionality of railway control systems. The proposed process is part of a specification-verification environment that facilitates the construction of correct, complete, consistent, and verifiable functional specifications during development. The results and experience in model checking are illustrated by a case study of a vehicle detection point, a common component in this domain. The model checking of the case study has been performed in the widely used UPPAAL modeling and simulation framework, which can also verify formal properties and generate a counterexample in case of a property violation. By analyzing the counterexample, the designer can gain insights into the system's behavior and identify potential design flaws or failures. Model checking can be used to achieve a higher quality functional specification that is typically more complete and/or contains fewer faults compared to the traditional development approach.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":"72 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141268317","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

A Grid-based Framework for Managing Autonomous Vehicles' Movement at Intersections 基于网格的交叉路口自动驾驶车辆移动管理框架

Periodica Polytechnica Transportation Engineering Pub Date : 2024-05-08 DOI: 10.3311/pptr.24397

M. Ghadi

{"title":"A Grid-based Framework for Managing Autonomous Vehicles' Movement at Intersections","authors":"M. Ghadi","doi":"10.3311/pptr.24397","DOIUrl":"https://doi.org/10.3311/pptr.24397","url":null,"abstract":"With a full fleet of autonomous vehicles (AV) in the future, the concept of signal-free intersections has attracted transportation researchers. Multiple studies have investigated different methods and protocols to facilitate vehicle decision-making at intersections. Most of these methods have relied on strong centralized or inter-vehicle communications. This research aims to develop a new protocol for managing vehicle movement at four-leg intersections assuming a fully automated fleet. The main concept of the proposed protocol is to maintain a continuous movement of vehicles entering the intersection, without stopping in queues, by controlling their sequence of movements. In the methodology a dynamic occupancy grid (DOG) approach is applied by initially dividing the intersection into dynamic grids (i.e. cells). The cells are in a virtual movement, emanating away from each lane-group without overlapping, like a gear machine. Each vehicle sits on a specific cell to traverse the intersection safely at a predetermined time. In other words, vehicles approaching an intersection must register their speed and position by certain sensors, and in return receive the appropriate acceleration and speed to finally be allocated to the suitable moving grids. The efficiency of the applied protocol was demonstrated by a practical example that presented a higher intersection capacity value exceeding the ideal saturation flow rate in some cases. This reflects the efficiency of the implemented protocol and its applicability to different low to high traffic flows. Moreover, the protocol shows more flexibility in dealing with different weather, geometric and traffic conditions.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":" 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141001714","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

The Environmental Sustainability Potential of Autonomous Vehicles: An Overview 自动驾驶汽车的环境可持续性潜力：概述

Periodica Polytechnica Transportation Engineering Pub Date : 2024-05-02 DOI: 10.3311/pptr.23933

Herman Szűcs, Jozefin Szűcs

引用次数: 0

Early Perspectives: Exploring the Potential Impacts of Autonomous Vehicles Through the Lens of Urban Mobility and Urban Form 早期视角：从城市交通和城市形态的角度探索自动驾驶汽车的潜在影响

Periodica Polytechnica Transportation Engineering Pub Date : 2024-04-23 DOI: 10.3311/pptr.23576

Mazdak Sadeghpour, Eda Beyazıt İnce

{"title":"Early Perspectives: Exploring the Potential Impacts of Autonomous Vehicles Through the Lens of Urban Mobility and Urban Form","authors":"Mazdak Sadeghpour, Eda Beyazıt İnce","doi":"10.3311/pptr.23576","DOIUrl":"https://doi.org/10.3311/pptr.23576","url":null,"abstract":"The emergence of autonomous vehicles (AVs) is expected to significantly reshape urban mobility and travel behavior patterns. AVs have the potential to offer higher levels of convenience, safety, and accessibility while enabling users to spend their trip time on more efficient and productive tasks such as working or even relaxing. This transformation in the short- to mid-term could result in changes in the public's sensitivity and perception toward enduring longer travel times and consequently, in mid- to long-term, it could influence the willingness to reconsider their residential locations. Therefore, the objective of this study is to enhance the understanding of the potential effects of AVs on travel behavior and land use through the examination of stated preference queries. To achieve this objective, various multinomial logit models toward AVs adoption and residential relocation were estimated by employing a dataset from Istanbul, Türkiye, as an example of megacity in a developing country. While the study findings revealed a set of potential adoption barriers for AVs, they also indicated a notable propensity for adopting these vehicles. Furthermore, concerning individuals' willingness to reconsider their residential locations due to the emergence of AVs, a considerable positive attitude was evident, albeit guarded. This attitude suggests that individuals' decisions are still evolving and can be guided toward the desired future through well-timed and well-suited policies. The outcomes of the study can serve as valuable input for policymakers as well as transportation and urban planners, offering insights into the potential impacts of AVs on urban mobility and form.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":"30 41","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140672061","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

Exploring an Interaction Model for Land Used Intensity-traffic Congestion 探索土地使用强度-交通拥堵的交互模型

Periodica Polytechnica Transportation Engineering Pub Date : 2024-04-22 DOI: 10.3311/pptr.23305

N. Asmael, H. M. Al-Taweel, M. Waheed

引用次数: 0

Innovative Work Order Planning with Process Optimization Using Computer Simulation in the Automotive Industry, in the Case of Repair Workshops 以汽车行业的维修车间为例，利用计算机模拟进行流程优化的创新工单计划

Periodica Polytechnica Transportation Engineering Pub Date : 2024-04-17 DOI: 10.3311/pptr.23546

M. Krynke, Magdalena Mazur

引用次数: 0

The EU Logistics Sector 欧盟物流业

Periodica Polytechnica Transportation Engineering Pub Date : 2024-04-03 DOI: 10.3311/pptr.23694

Ivona Bajor, Adam Torok, Tomislav Rožić, L. Novačko

引用次数: 0

Simulation of Transfer Probability in the City Route Network: Case Study of Lviv, Ukraine 城市线路网络中的换乘概率模拟：乌克兰利沃夫案例研究

Periodica Polytechnica Transportation Engineering Pub Date : 2024-03-26 DOI: 10.3311/pptr.22322

Mykola Zhuk, H.V. Pivtorak, V. Kovalyshyn, I. Gits

{"title":"Simulation of Transfer Probability in the City Route Network: Case Study of Lviv, Ukraine","authors":"Mykola Zhuk, H.V. Pivtorak, V. Kovalyshyn, I. Gits","doi":"10.3311/pptr.22322","DOIUrl":"https://doi.org/10.3311/pptr.22322","url":null,"abstract":"The correct organization of transfers in the public transport system allows to reduce the congestion of the route network while maintaining a sufficient level of service quality for users of transport services. When modelling the probability of transfer, it is advisable to separate the probability of a public transport user choosing a trip with a transfer and the probability of making a transfer at a certain stop of the public transport system. The first probability largely depends on the socio-economic characteristics of the passenger and the time parameters of the trip. The probability of transfer at a certain stop is affected by the information provision of the stop and the number of routes. The general configuration of the route network determines the \"basic need for a transfer in the network\" - the ratio of the number of pairs of transport zones between which there is no direct public transport route to the total number of pairs of transport zones. The simulation carried out in the PTV Visum software environment for Lviv city made it possible to assess the impact of the tariff system on the change in the number of transfers and to determine critical stops and routes of the network. The inclusion of data on the structure of the city's population in the model makes it possible to use mathematical functions of the probability of transfer on the socio-economic characteristics of the passenger (age, gender, income level) when calculating the forecast number of transfers on the network.","PeriodicalId":39536,"journal":{"name":"Periodica Polytechnica Transportation Engineering","volume":"104 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140379899","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