Transportation Engineering最新文献_第9页

Vision-based investigation of road traffic and violations at urban roundabout in India using UAV video: A case study 利用无人机视频对印度城市环岛道路交通和违规行为进行基于视觉的调查:案例研究

Transportation Engineering Pub Date : 2023-10-08 DOI: 10.1016/j.treng.2023.100207

Yagnik M Bhavsar , Mazad S Zaveri , Mehul S Raval , Shaheriar B Zaveri

{"title":"Vision-based investigation of road traffic and violations at urban roundabout in India using UAV video: A case study","authors":"Yagnik M Bhavsar , Mazad S Zaveri , Mehul S Raval , Shaheriar B Zaveri","doi":"10.1016/j.treng.2023.100207","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100207","url":null,"abstract":"<div><p>In the past decade, the number of vehicles in India has increased exponentially; however, road infrastructure has not scaled proportionately. As a result, road traffic problems such as congestion on urban roads, dangerous traffic violations, and road accidents have increased significantly. Due to limited road infrastructure, traffic violations (human errors) have intensified in densely populated urban areas. This paper presents a case study (at a multi-lane urban roundabout in Ahmedabad city, India) and the methodology based on computer vision to investigate road traffic and violations using drone/UAV-based aerial video. You Only Look Once-YOLOv7 is used for vehicle detection, and Simple Online and Real Time Tracking-SORT for tracking vehicles. Our methodology divides the road scene (roundabout) into certain zones. We then formulated the dictionary, which maps the traffic violations under Motor Vehicle Driving Regulations - MVDR/ Motor Vehicle Act - MVA and the movement of the vehicle (zone traversal sequences). Using the zone-based methodology, we could also probe other road traffic data such as the count of vehicles, speed of vehicles, rate of traffic flow, and congestion. Based on our results, we also infer some of the possible causes of traffic violations in terms of problems/limitations of road infrastructure. As per our analysis, around 23.26% of vehicles committed traffic violations. We detected traffic violations related to lane indiscipline, driving against the authorized flow of traffic, parking violations, and over-speeding within the roundabout. Our methodology of investigating road traffic and violations can be used for road infrastructure improvement, law enforcement drives, and policy making, for road traffic safety, in developing and densely populated countries.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100207"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49714107","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

Causal Factors Analysis of runway excursion occurrences through Fuzzy Logic Modeling method 用模糊逻辑建模方法分析跑道偏移发生的原因

Transportation Engineering Pub Date : 2023-09-22 DOI: 10.1016/j.treng.2023.100204

Yannian Lee

{"title":"Causal Factors Analysis of runway excursion occurrences through Fuzzy Logic Modeling method","authors":"Yannian Lee","doi":"10.1016/j.treng.2023.100204","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100204","url":null,"abstract":"<div><p>Runway excursion (RE) was one of main contributing factors to aviation occurrences whilst unstable approach precursors were the ones accounting for a significant proportion of those occurrences. The objective of this study is to identify the most influencing causal factors (hazards and risks) of RE occurrences and propose countermeasures to mitigate potential RE risks and RE occurrences in Taiwan. Causal Factors Analysis System and Fuzzy Logic Modeling method are used to classify hazards and risks of RE occurrences and establish a fuzzy logic model for RE occurrence predictions. The final squared multiple correlation coefficients (<em>R</em><sup>2</sup> = 0.9999) verify that the predictive capabilities of the final RE model are not affected after the exclusion of the less influencing parameters. Sensitivity analysis reveals that avoiding crosswind or tailwind landings can significantly reduce the likelihood of RE occurrences; and reducing inadequate supervision related errors is the most cost-effective strategy to mitigate probable RE risks. Local civil aviation authority and airline operators are all responsible to collaborate with each other to mitigate causal factors of RE occurrences due to inadequate supervision. Recommended countermeasures to the civil aviation authority: maintain sufficient depth of technical staff and appropriate deployment of management level personnel to conduct safety oversight; to airline operators: formulate non-punitive policy, clearly define and document go-around procedures, and develop evidence-based training for pilot monitoring's competencies needed including monitoring, call out and intervention to take control.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100204"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49714355","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

Environmental and economic benefits of CNG conversion on three-wheelers in a developing city, Khulna, Bangladesh 孟加拉国库尔纳一个发展中城市的三轮车上的CNG转换的环境和经济效益

Transportation Engineering Pub Date : 2023-09-01 DOI: 10.1016/j.treng.2023.100199

Md. Abdul Fattah , Md. Athar Istiaqe , Avrodip Biswas , Mahin Rahman , Syed Riad Morshed , Tanmoy Chakraborty

{"title":"Environmental and economic benefits of CNG conversion on three-wheelers in a developing city, Khulna, Bangladesh","authors":"Md. Abdul Fattah , Md. Athar Istiaqe , Avrodip Biswas , Mahin Rahman , Syed Riad Morshed , Tanmoy Chakraborty","doi":"10.1016/j.treng.2023.100199","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100199","url":null,"abstract":"<div><p>Motorized vehicles have emerged as significant contributors to air pollution in cities around the world, particularly in developing countries where they constitute the primary source of pollution. To address this issue and improve air quality, the substitution of petroleum and diesel consumption with Compressed Natural Gas (CNG) has gained attention. For the first time, this study investigated the environmental and economic impacts of CNG conversion on three-wheelers. The top-down approach was employed to estimate pollutant emissions (CO<sub>2</sub>, CO, SO<sub>2</sub>, CH<sub>4</sub>, NO<sub>2</sub>, NMVOC, and PM<sub>10</sub>) from the three-wheelers in Khulna City. For assessing the economic impacts, pollutant emission costs were estimated using the damage cost approach; vehicle operation and trip generation costs were also estimated. Findings reveal that CNG conversion leads to reduced vehicle operation costs and increased average daily travel length. Consequently, daily CO<sub>2</sub> emissions in Khulna City decreased by 32.27 tons, SO<sub>2</sub> by 45.87 kg, NMVOC by 20.12 kg, and PM<sub>10</sub> by 166.02 kg during 2019–2022 period. However, there was an increase in CO emissions of 3.69 tons/day, CH<sub>4</sub> of 370.62 kg/day, and NO<sub>2</sub> of 197.20 kg/day. This also contributed to the decline in pollutant emission costs by BDT 1.12 million per day (USD 4.8 million/year). The noise pollution inventory analysis shows the diesel-powered vehicle is the noisiest among three-wheelers. This comprehensive study directly contributes to the present interest in adopting CNG-fueled vehicles in both developed and developing nations. The study facilitates an integrated assessment of co-benefits by reducing air pollution and climate change strategies at the same time.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"13 ","pages":"Article 100199"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49715355","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

Improved efficiency with adaptive front and rear axle independently driven powertrain and disconnect functionality 采用自适应前桥和后桥独立驱动的动力系统和断开连接功能，提高了效率

Transportation Engineering Pub Date : 2023-09-01 DOI: 10.1016/j.treng.2023.100192

Y. Xu , A. Kersten , S. Klacar , B. Ban , J. Hellsing , D. Sedarsky

{"title":"Improved efficiency with adaptive front and rear axle independently driven powertrain and disconnect functionality","authors":"Y. Xu , A. Kersten , S. Klacar , B. Ban , J. Hellsing , D. Sedarsky","doi":"10.1016/j.treng.2023.100192","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100192","url":null,"abstract":"<div><p>Front and rear axle independently driven (FRID) powertrains are becoming a popular solution for electric vehicles (EVs) due to torque distribution capability which can enhance powertrain energy efficiency. Typically, permanent magnet synchronous machines (PMSMs) are used for FRID powertrains due to their high torque, and power density. However, the drive-cycle efficiency of FRID powertrains with PMSMs is typically reduced in comparison to single motor drives. This is due to the unwanted no-load losses of PMSMs in the field weakening region. To overcome this drawback of PMSM FRIDs, this paper proposes an adaptive front- and rear-axle independently driven (AFRID) powertrain, utilizing two dog clutches, so that the powertrain can be operated in different modes (rear, front, and all-wheel drive) by adaptively connecting and disconnecting the front and/or rear electric drive unit (EDU). A rule-based mode selection strategy is developed to utilize the flexibility of different powertrain operating modes of the powertrain for maximizing the energy efficiency of the EDU. The simulation results show that the suggested AFRID powertrain, in comparison to a common FRID powertrain, can improve the WLTC drive-cycle consumption from 22.17 kWhh to 20.50 kWhh per 100 km. Based on the route and road-load information, the energy-saving potential of the AFRID powertrain can be further improved to 20.37 kWhh per 100 km by a suggested predictive mode selection strategy, achieving an optimal mode selection.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"13 ","pages":"Article 100192"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49715461","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

Choice probabilities and correlations in closed-form route choice models: Specifications and drawbacks 封闭路径选择模型中的选择概率和相关性:规范和缺点

Transportation Engineering Pub Date : 2023-09-01 DOI: 10.1016/j.treng.2023.100186

Fiore Tinessa, Vittorio Marzano, Fulvio Simonelli, Daniela Tocchi, Andrea Papola

{"title":"Choice probabilities and correlations in closed-form route choice models: Specifications and drawbacks","authors":"Fiore Tinessa, Vittorio Marzano, Fulvio Simonelli, Daniela Tocchi, Andrea Papola","doi":"10.1016/j.treng.2023.100186","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100186","url":null,"abstract":"<div><p>This paper investigates the performance – in terms of choice probabilities and correlations – of existing and new specifications of closed-form route choice models with flexible correlation patterns, namely the Link Nested Logit (LNL), the Paired Combinatorial Logit (PCL) and the more recent Combination of Nested Logit (CoNL) models. Following a consolidated track in the literature, choice probabilities and correlations of the Multinomial Probit (MNP) model are taken as targets. Laboratory experiments on small/medium-size networks are illustrated, also leveraging a procedure for practical calculation of correlations of any GEV models. Results show that models with inherent limitations in the coverage of the domain of feasible correlations yield unsatisfactory performance, whilst the specifications of the CoNL proposed in the paper appear the best in fitting both MNP correlations and probabilities. The performance of the models is appreciably ameliorated by introducing lower bounds to the nesting parameters. Overall, the paper provides guides for the practical application of tested models.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"13 ","pages":"Article 100186"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49715464","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

Analysis of superblocks during the transition phase from traditional vehicles to fully automated vehicle environment: A case study of Barcelona City 从传统车辆到全自动车辆环境过渡阶段的超级街区分析——以巴塞罗那市为例

Transportation Engineering Pub Date : 2023-09-01 DOI: 10.1016/j.treng.2023.100203

Samra Sarwar , Sergi Saurí , Muhammad Tabish Bilal , Genís Majoral

{"title":"Analysis of superblocks during the transition phase from traditional vehicles to fully automated vehicle environment: A case study of Barcelona City","authors":"Samra Sarwar , Sergi Saurí , Muhammad Tabish Bilal , Genís Majoral","doi":"10.1016/j.treng.2023.100203","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100203","url":null,"abstract":"<div><p>The planning of vehicle-dependent cities across the world with emerging technologies like automated vehicles must be amended to make them pedestrian-friendly. Therefore, there is a need to reorganise the urban streets to create more spaces for pedestrians, even with the presence of automated vehicles (AVs). This research proposes the concept of a superblock model in the presence of automated vehicles to meet this challenge. This research aims to assess the impacts of AVs on pedestrian-friendly streets using a superblock approach. In the superblock model, cut-through traffic demand is restricted, and traffic generated or attracted to a superblock can have access, allowing for more room for public spaces. This study systematically discusses the superblock model implemented in a network with a grid structure using a genetic algorithm. It addresses the dynamic user equilibrium assignment for demand and topology segmentation. Three scenarios are considered due to the longer period of transition from traditional vehicles to fully AVs. The study evaluates the potential and constraints of implementing the superblock model with different penetration rates of AVs in the system by defining variable traffic demand and the variable number of superblocks. Furthermore, a cost-benefit analysis of the proposed methodology is conducted. The proposed model is implemented on a real-time network of Barcelona city, and the findings of this study are summarised by the macroscopic fundamental diagram, which depicts the improvement in the performance of the network with the inclusion of AVs.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"13 ","pages":"Article 100203"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49715510","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

Assessing the performance of eggshell ash as a sustainable bitumen modifier 蛋壳灰作为可持续沥青改性剂的性能评价

Transportation Engineering Pub Date : 2023-09-01 DOI: 10.1016/j.treng.2023.100196

Tamalkhani Syammaun , Husaini , Abdullah , Muhammad Isya , Firmansyah Rachman

{"title":"Assessing the performance of eggshell ash as a sustainable bitumen modifier","authors":"Tamalkhani Syammaun , Husaini , Abdullah , Muhammad Isya , Firmansyah Rachman","doi":"10.1016/j.treng.2023.100196","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100196","url":null,"abstract":"<div><p>The disposal of eggshells in landfills presents an ongoing global environmental issue that demands immediate attention. However, a promising solution lies in utilizing eggshells as modifiers in bitumen binders, offering a sustainable approach to alleviating this burden. This study focuses on crushing eggshells to produce eggshell ash, which is then explored as a potential modifier in bitumen binders. The objective is to evaluate the properties of modified bitumen binders incorporating eggshell waste sourced from the food industry and examine their application in bitumen engineering. The optimal weight percentage of eggshell ash in the bitumen is determined, considering four levels (5, 7, 10 and 12%) and two heating temperatures (100 and 200 °C). Several tests are conducted to comprehensively evaluate the eggshell ash, including SEM-EDS and FTIR analyses, providing valuable technical insights into its properties. Additionally, DSR measurements are employed to analyze the characteristics of the bitumen incorporating eggshell ash. The primary oxide group present in the eggshell ash is CaCO<sub>3</sub>. Notably, higher concentrations of eggshell ash enhance the resistance of bitumen binders to high temperatures, as indicated by the penetration index results. Furthermore, DSR testing reveals that adding eggshell ash increases the rigidity of the bitumen binders, resulting in improved resistance to deformation.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"13 ","pages":"Article 100196"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49761788","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

Evaluation of reverse curves focusing on the lateral friction demand on four-lane divided highways 以四车道分隔公路横向摩擦需求为重点的反向弯道评价

Transportation Engineering Pub Date : 2023-09-01 DOI: 10.1016/j.treng.2023.100188

Alireza Aminfar , Amin Mirza Boroujerdian , Arastoo Karimi

{"title":"Evaluation of reverse curves focusing on the lateral friction demand on four-lane divided highways","authors":"Alireza Aminfar , Amin Mirza Boroujerdian , Arastoo Karimi","doi":"10.1016/j.treng.2023.100188","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100188","url":null,"abstract":"<div><p>Horizontal curves on mountainous roads are highly crash-prone and geometric consistency is vital in their design. The drivers' lateral friction demand will be significantly affected if there are a substantial number of successive horizontal curves on these roads due to design limitations. This study is aimed to evaluate the safety of reverse curves using the lateral friction demand as a design criterion. Using a UAV, the required data were collected from ten reverse curves on a mountain highway in Iran for a multiple linear regression model to investigate the effects of geometric variables and speed of vehicles on the average lateral friction demand (<em>f<sub>d,mean</sub></em>). According to the results: (1) the length of the common tangent and the ratio of the curves’ radii affect <em>f<sub>d,mean</sub></em><sub>,</sub> (2) the road longitudinal grade and the vehicle speed have positive effects on <em>f<sub>d,mean</sub></em>, but the curve superelevation affects it negatively and (3) when the length of the common tangent is ≈ 400 m and the curves’ radii are close, the vehicle trajectories are close to the expected trajectory based on the design. These results can help reverse curves to be designed more safely.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"13 ","pages":"Article 100188"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49715480","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

The assessment of a road “acoustic capacity” methodology and application to a real case of study 道路“声容”评价方法及应用实例研究

Transportation Engineering Pub Date : 2023-09-01 DOI: 10.1016/j.treng.2023.100189

Marino Lupi, Daniele Conte, Alessandro Farina

{"title":"The assessment of a road “acoustic capacity” methodology and application to a real case of study","authors":"Marino Lupi, Daniele Conte, Alessandro Farina","doi":"10.1016/j.treng.2023.100189","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100189","url":null,"abstract":"<div><p>In this paper, a new methodology for the definition of the acoustic capacity of a road infrastructure is proposed. The acoustic capacity is rather a new topic as, in the road performance assessment, only the physical capacity is taken into account, or, sometimes, the environmental capacity due to atmospheric pollutants; instead the environmental capacity due to noise, called “acoustic capacity” in the following, is always neglected. For the acoustic capacity assessment, the Harmonoise model has been used: it receives in input traffic data and provides in output noise emission and immission levels which are after compared to the limit levels established by law. Moreover, some problems of implementation on the field of the acoustic capacity methodology are investigated: the position of the receiver in the case of intersections of complex geometry; the noise emission limit values to take into account in case of rush hour traffic. The proposed methodology is applied to a real network: the road network of Piombino, Italy. The results of the application show firstly that the acoustic capacity is actually a constraint involving several traffic flows. Moreover, the acoustic capacity of a road infrastructure is generally lower than its physical capacity, when the noise emission limit value is that imposed by law: that is the acoustic descriptor <em>L<sub>day</sub></em> in our analysis. When the limit value increased by 3 dB(A) for rush hours is taken into account, the acoustic capacity is higher, and is more often greater than the physical capacity.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"13 ","pages":"Article 100189"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49715088","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

Evaluating geospatial accuracy for equity analyses: A case study of the U.S. National Bridge Inventory 评估公平分析的地理空间准确性:美国国家桥梁清单的案例研究

Transportation Engineering Pub Date : 2023-09-01 DOI: 10.1016/j.treng.2023.100198

Cari Anne Gandy , Xu Kang , Nicola Ritsch , Daniel Erian Armanios

{"title":"Evaluating geospatial accuracy for equity analyses: A case study of the U.S. National Bridge Inventory","authors":"Cari Anne Gandy , Xu Kang , Nicola Ritsch , Daniel Erian Armanios","doi":"10.1016/j.treng.2023.100198","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100198","url":null,"abstract":"<div><p>This short communication seeks to develop and evaluate a generalizable methodological approach for geospatially matching infrastructure assets to socioeconomic data to better facilitate equity-informed transportation decisions. This study focuses specifically on providing insight into the spatial accuracy of the U.S. Department of Transportation (DOT)'s National Bridge Inventory (NBI) dataset at a national level via a method that is less computationally or manually intensive than past approaches. Phase 1 focuses on assessing the quality of existing NBI locational data using a geospatially-driven method. We find that 98.8% and 95.4% of the NBI records matched the reported state and county tag respectively, according to their reported latitude and longitude. Phase 2 focuses on potential ways to correct locational mismatches. We find that a 30.5 m (100 ft) buffer and Thiessen polygons provide the greatest improvements in matching accuracy in the NBI record over point coordinates. Phase 3 assesses the feasibility of enhancing location granularity through a hand-checked case study. We find that for coarser geospatial levels (state and county), equity-based analyses may be possible, but for more granular geospatial levels (place and census tract), which is where equity-based analyses are often conducted, the data may need greater buffering and hand checks to ensure accuracy. To use more automated processes at these high spatial resolutions, governments and other policy-making entities will likely need to require quality control checks of longitude and latitude infrastructure data. This work provides the first systematic analysis of the robustness of the NBI data for equity-based analyses, as well as possible policies to improve its usage for equity analyses.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"13 ","pages":"Article 100198"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49715214","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