Open Transportation Journal最新文献

{"title":"Factors Affecting Public Transportation Ridership in a High-Income Developing Country","authors":"Khaled Shaaban, A. Siam","doi":"10.2174/18744478-v17-e230109-2022-28","DOIUrl":"https://doi.org/10.2174/18744478-v17-e230109-2022-28","url":null,"abstract":"\u0000 \u0000 In rich developing countries, the increased rate of car use has major implications in terms of pollution, noise, and congestion problems. One of the main solutions to these problems is to find ways to promote the use of other transportation modes. The first step in this process is identifying the factors affecting the use of these modes.\u0000 \u0000 \u0000 \u0000 In Qatar, a major bus service was introduced to address the fast-growing transportation demands in urban areas. This study was initiated to explore the factors influencing public bus ridership in Qatar. The goal is to understand the influence of various attributes at the stop level of the existing public buses.\u0000 \u0000 \u0000 \u0000 Multiple linear regression models were developed to identify the parameters that significantly influence stop level boarding and alighting.\u0000 \u0000 \u0000 \u0000 The results indicate that land use and population parameters were significantly affecting the existing bus ridership in Qatar. The population parameters include the number of persons available in the catchment area for residing, working, visiting restaurants, and shopping purposes. Land use parameters include the number of shopping places, number of restaurants, and number of mosques.\u0000 \u0000 \u0000 \u0000 This information can help policymakers and public authorities to develop policies and plans to increase bus usage in Qatar. \u0000","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45838494","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":"Spatial Analysis of the Contribution of Parking Service Facilities to Traffic Crashes along Limited-access Roadways","authors":"Fathi Alkhatni, S. Z. Ishak, W. Hashim, M. N. Borhan, Elsaid M M Zahran","doi":"10.2174/18744478-v17-e230109-2022-35","DOIUrl":"https://doi.org/10.2174/18744478-v17-e230109-2022-35","url":null,"abstract":"\u0000 \u0000 Parking service facilities (PSFs) are integral components of road networks and are typically designated to offer road users, stakeholders, and external entities various services and opportunities. However, the current literature manifests contradictions among studies regarding the contribution of PSFs to crashes in the mainline traffic stream. This study aims to assess the contribution of PSFs to traffic crashes on limited-access expressways using hotspot analysis of traffic crashes in GIS.\u0000 \u0000 \u0000 \u0000 Planar Getis-Ord Gi* and network KDE were used to detect crash hotspots along a study road based on five criteria: crash frequency of all vehicle types, frequency of all vehicles involved in crashes, frequency of heavy vehicles involved in crashes, injury severity index and iRAP star rating.\u0000 \u0000 \u0000 \u0000 The study identified and ranked the safety hazard of PSFs along the study road via the interference and risk level of crash hotspots with influential segments of PSFs. Getis-Ord Gi* analysis showed that almost 65% of PSFs along the study road were potentially high-risk facilities, with their influential segments interfering with crash hotspots based on the five hotspot analysis criteria. On the other hand, network KDE identified that almost 100% of PSFs along the study road were potentially high-risk facilities of either serious, significant or moderate risk levels, based on the same hotspot analysis criteria.\u0000 \u0000 \u0000 \u0000 The two spatial analyses indicated that crashes in the proximity to PSFs may increase when the number of lanes of their influential road segments increases and traffic flow is interrupted by other road facilities. They also indicated that crash frequency and severity increase in the proximity to PSFs with high speed and high traffic volume. Furthermore, the two analyses indicated that heavy vehicle crashes are more likely to increase in the proximity to PSFs in rural areas.\u0000","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44953332","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":"Estimation of Cross Classified Value of Travel Time Using Binary Logit Model on Egyptian Roads","authors":"H. Bakry, Y. Elgohary, Aya Farag, I. Ramadan","doi":"10.2174/18744478-v16-e2209140","DOIUrl":"https://doi.org/10.2174/18744478-v16-e2209140","url":null,"abstract":"\u0000 \u0000 In this study, cross-classified categories of Value of Travel Time (VOT) are estimated using the binary logit model for the users of both public and private vehicles who have diverse income levels and go on different trips. The travelers’ income level has a large impact on their VOT and on their willingness to pay regarding other factors that impact the travelers’ choice of the most suitable means of transport for them.\u0000 \u0000 \u0000 \u0000 The research uses the combined stated and the revealed preference survey and applies the logistic regression analysis to estimate the categorized VOT on Egyptian roads. The data sets consist of 1123 respondents who were approached to collect information related to the socio-economic factors and the trips’ characteristics. Each respondent was requested to choose an alternative to each of the choice sets’ levels. All data sets were collected in light of the Binary Logit analysis and recorded concerning the socio-economic factors. A total of 33 models were developed to predict the VOT.\u0000 \u0000 \u0000 \u0000 According to the given analysis, VOT for private car owners (32.5 LE/HR about 2.06 $/ HR) is higher than that for public transport users (18.3 LE/HR about 1.16 $/ HR) in Egypt. As for the diverse income level groups, a positive correlation is found between each traveler and his/her income. To clarify, the travelers’ VOT increases when their income levels improve.\u0000 \u0000 \u0000 \u0000 Concerning the purpose of the trip, the VOT reaches its peak for travelers who travel for the sake of work as their VOT is approximately 38.82 LE/HR, about 2.47$/HR compared to the other travelers who have different traveling purposes other than doing business.\u0000","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43143051","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":"Data Fusion of Non-destructive Testing Methods for Bridge Deck Condition Assessment","authors":"S. Cafiso, A. Di Graziano, D. Goulias, G. Pappalardo","doi":"10.2174/18744478-v16-e221130-2022-15","DOIUrl":"https://doi.org/10.2174/18744478-v16-e221130-2022-15","url":null,"abstract":"Highway agencies explore the use of non-destructive testing (NDT) for assessing the condition of their infrastructure in the most cost-effective manner. NDTs can provide as-built construction quality, as well as in service condition assessment especially for older structures where some critical information and/or maintenance records are often not available. In many cases, the use of NDTs requires “ground true” data for either calibration or validation. Surveys for obtaining such information is often challenging for in service structures, time consuming and costly. Objective of this paper is to present a data fusion approach for forensic investigation of bridge decks, in which Ground Penetrating Radar (GPR) is used to assess the current condition combined with a Laser Scanner system to verify the bridge design features. The data fusion approach proposed in this study considers using GPR based condition data combined with geometric measurements of the bridge deck obtained from the Laser Scanner system. Such novel fusion approach permits to more accurately measure the current bridge deck conditions in terms of thickness of the bridge deck and rebar depth to assess deterioration. Furthermore, detection of variations in the rebar depth suggested the implementation of a correction procedure for the reflection amplitude of the GPR signal based on true rebar depths instead of the two-way travel time, which is commonly applied. This innovative analysis approach provided a more refined assessment of delaminated areas in the bridge deck. The data fusion and suggested analysis methodology was tested on a pre-stressed concrete bridge in Italy. The approach proposed in this study can be used elsewhere for assessing the condition of bridge decks. The merging of such methods is particularly valuable for bridges were construction drawing and records may not be available, and/or there is potential concern of a deviation between design and as-built characteristics (i.e., where quality assurance and quality control records may be questionable).","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44693266","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":"Population vs. Intersection Densities: An Assessment of a Correlation using Spatial Comparison and Regression Analysis in Yaoundé, Cameroon","authors":"Edouard Bengono Essola, Chunho Yeom","doi":"10.2174/18744478-v16-e221125-2022-31","DOIUrl":"https://doi.org/10.2174/18744478-v16-e221125-2022-31","url":null,"abstract":"\u0000 \u0000 Intersection density is associated with block size and is positively related to pedestrian volume.\u0000 \u0000 \u0000 \u0000 This study aimed to show that intersection density and population match across Yaoundé using spatial comparison and regression analysis.\u0000 \u0000 \u0000 \u0000 For spatial comparison, the mean values of the variables (intersection and population densities) were computed for each administrative subdivision in Yaoundé. The results are reported in a table representing Yaoundé and how the subdivisions share boundaries. For comparison, a table was created for each variable. Simple linear regression with a confidence level of 95% was used for regression analysis.\u0000 \u0000 \u0000 \u0000 Spatial analysis revealed that the pattern of population density was similar to that of intersection density. However, this was disturbed by proximity to the central business district (CBD). Regression analysis demonstrated that both variables moderately covariate with the influence of CBD. When assuming a weak influence of the CBD, they are strongly covariates. Statistically, in both cases, the correlation between population and intersection densities did not occur randomly (small p-values).\u0000 \u0000 \u0000 \u0000 The results imply that intersection density is a strong lever that influences citizen behavior. Future planning policies in Yaoundé should consider increasing intersection density in the most crowded areas. It will contribute to the better management of high pedestrian flows in these areas.\u0000","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43359094","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":"Horizontal Collaboration among SMEs through a Supply and Distribution Cooperative","authors":"Mehmet Soysal, Sedat Belbağ, Sibel Erişkan","doi":"10.2174/18744478-v16-e2208101","DOIUrl":"https://doi.org/10.2174/18744478-v16-e2208101","url":null,"abstract":"\u0000 \u0000 The 2030 Agenda for Sustainable Development encourages the governments of low and middle-income countries to support specifically small and medium enterprises to reach sustainable economic conditions. Strategic collaborative alliances among small and medium enterprises help these companies to overcome difficulties confronted in supply chain processes, such as procurement and transportation. This study describes a horizontal collaboration among small and medium enterprises (i.e., customers) where the demands are satisfied by a supply and distribution cooperative in Turkey. The cooperative is responsible for making bulk purchases with a discounted price that is not attainable for individual customers and making product deliveries to the customers. The benefits of establishing a supply and distribution cooperative that involves horizontally collaborating customers are assessed through a proposed decision support model.\u0000 \u0000 \u0000 \u0000 The model comprises a dynamic programming-based heuristic to determine a distribution plan and simulation to calculate total cooperative profit and customer profit shares. The model incorporates a comprehensive energy estimation approach for conventional vehicles that allows decision-makers to better estimate fuel consumption and, therefore, transportation emissions.\u0000 \u0000 \u0000 \u0000 The results show that horizontal collaboration among customers does not always guarantee profit. The amount of financial gain is dependent on many factors, such as logistics network, monetary demands, or discount rate observed due to the bulk purchase of the cooperative. Furthermore, such strategic alliances could allow companies to improve the efficient use of resources to have sustainable logistics systems.\u0000 \u0000 \u0000 \u0000 The proposed model can be used (i) to provide a detailed evaluation of the related costs and revenues, (ii) to provide analyses of the effects of the discount rate and the sector demand rate changes on the total cooperative profit, and (iii) to analyse the effects of uncertainties in several parameters on the total cooperative profit and customer profit shares.\u0000","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48637153","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":"The Integration of Transportation Modes for Bromo-Tengger-Semeru National Park","authors":"Priyambodo, A. Hamid, Kristian Buditiawan, Dendy Setyawan, A. S. Adi, D. Gartika, Suroso, E. W. Alita, Momon","doi":"10.2174/18744478-v16-e2208183","DOIUrl":"https://doi.org/10.2174/18744478-v16-e2208183","url":null,"abstract":"\u0000 \u0000 The spread of the COVID-19 virus requires unprecedented steps from the government such as the restriction of travelers and activities and enforcement of social distancing to reduce interaction between individuals. This led to a drastic decrease in tourist visits to the TN-BTS between January and December 2020 with the area reported having been closed between April - July. Meanwhile, there was an inadequate transportation system at a tourist destination area before the pandemic and that made the movement more difficult during the pandemic. Therefore, this research is focused on describing transportation modes integration in the East Java-Indonesia TN-BTS area during this period.\u0000 \u0000 \u0000 \u0000 The intermodal integration was represented through the community's preference which was based on certain elements such as the need for connecting mode, main mode, multimodal network, transitional facilities, switching facilities with different networks, schedules integration, tariffs, routes, and times.\u0000 \u0000 \u0000 \u0000 The survey conducted, however, showed these indicators are below expectation as observed with the community satisfaction with transportation integration in the TN-BTS area measured to be very low, below 60%, using the Customer Satisfaction Index (CSI) tool. Moreover, the expectations on the variables for intermodal integration were also measured using Important Performance Analysis (IPA).\u0000 \u0000 \u0000 \u0000 The findings showed the policymakers and planners need to take steps to encourage the realization of transportation integration in the TN-BTS area to develop tourism in the area.\u0000","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46574229","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":"Projecting the Impact of New Public Transport Networks on Mode Shift","authors":"R. Ryall, Matthew Sullivan-Kilgour","doi":"10.2174/18744478-v16-e221115-2022-24","DOIUrl":"https://doi.org/10.2174/18744478-v16-e221115-2022-24","url":null,"abstract":"\u0000 \u0000 Although many studies have identified the key factors influencing travel mode, they have typically centred around survey data, which has several limitations. In this research, actual transport data (GPS) has been provided by Google Environment Insights Explorer (EIE) for 169 municipalities in Australia across 2018 and 2019.\u0000 \u0000 \u0000 \u0000 A key outcome of this paper is to project the independent impact of new public transport networks (rail, bus and tram) on mode shift away from vehicles for each municipality and estimate the total distance travelled.\u0000 \u0000 \u0000 \u0000 This study uses a combination of linear regression and logit transformations to predict the proportion of automobile transport relative to all other transport modes.\u0000 \u0000 \u0000 \u0000 The results suggest that South Australia would benefit from a metropolitan northeast rail line, New South Wales would benefit from a metropolitan southwest tram line, and Victoria would benefit from a metropolitan southeast bus service.\u0000 \u0000 \u0000 \u0000 Although the analysis is somewhat crude, it utilises open-access data and thus could be easily replicated for any country globally, which could be greatly beneficial, especially for countries with low socio-demographic backgrounds.\u0000","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43544057","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":"Funding the High-Speed Rail: A Case Study of the California Project","authors":"Shailesh Chandra, V. Mishra","doi":"10.2174/18744478-v16-e2208181","DOIUrl":"https://doi.org/10.2174/18744478-v16-e2208181","url":null,"abstract":"\u0000 \u0000 High-speed rail (HSR) projects are considered high-stake investments– both in construction, operation, and maintenance. Thus, HSR requires financing from various sources - public, private or a mix of both, as the case maybe. Traditional funding for HSR has usually been the public funds through various bonds and taxes. However, public funds are not easy to come by and are usually subjected to strict audits and reviews. Therefore, alternative funding sources are always sought after, especially those that are sustainable.\u0000 \u0000 \u0000 \u0000 A multiobjective optimization problem is proposed in this paper encompassing revenue generation, accessibility maximization and workforce-centric access measure (WAM) consideration for financing HSR development costs and justifying its purpose. The procedure identifies key HSR stations that could be developed and improved to positively increase revenue collected through taxes on surrounding properties that appreciated due to the HSR, or the appreciation that either occurred through accessibility increase or WAM considerations from the HSR.\u0000 \u0000 \u0000 \u0000 Such key stations that score high in one or more of these considerations could be considered for further development by policymakers and planners. Based on the multiobjective optimization problem proposed in this paper, and with the California HSR as an example, the three proposed stations of San Francisco Transbay Terminal, University City and Downtown Merced are recommended to be developed and improved to attract economic growth with the HSR line.\u0000 \u0000 \u0000 \u0000 The findings could help authorities focus on these stations (and similar others) for a sustainable means of at least partially funding California’s HSR project.\u0000","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47422231","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":"An Analysis of the Main Causes of Delays in the Completion of Road Construction Projects: A Case Study of Tanzania","authors":"Donati Michael Kullaya, Muluken Kassahun Alemu, C. Yeom","doi":"10.2174/18744478-v16-e2208190","DOIUrl":"https://doi.org/10.2174/18744478-v16-e2208190","url":null,"abstract":"\u0000 \u0000 Completing road construction projects in time is a challenge for developing countries, specifically for Tanzania, where great economic costs result from difficulties in identifying and reducing the factors that cause the delay.\u0000 \u0000 \u0000 \u0000 This study addresses factors that cause the delay of a road construction project in Tanzania and proposes some methods that could potentially reduce this delay. A structured questionnaire was drawn up through an interactive online workshop with the help of experts and professionals from the road construction sector in Tanzania, and follow-up interviews were conducted.\u0000 \u0000 \u0000 \u0000 In addition, the first results were analyzed, and the factors identified were combined into five important groups, namely, client-related, consultant-related, contractor-related, design-related, and external factors. These were the main contributing aspects to delays in road construction projects in Tanzania.\u0000 \u0000 \u0000 \u0000 Furthermore, from across these groups, six significant causes of delays emerged, and these were inadequate access to finance and delayed payments for completed work, financial problems or difficulties, unwillingness or inability to sustain operations over long periods of non-payment, an unrealistic program of works (Works Schedule), inadequate site management, and political interference.\u0000","PeriodicalId":38631,"journal":{"name":"Open Transportation Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45751549","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}