The Baltic Journal of Road and Bridge Engineering最新文献_第4页

Prospects for the Use of Ash and Slag Waste in the Construction of Road Pavement 粉煤灰、矿渣废弃物在道路路面施工中的应用前景

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-12-23 DOI: 10.7250/bjrbe.2022-17.580

A. Bieliatynskyi, Shilin Yang, V. Pershakov, O. Akmaldinova, K. Krayushkina, M. Shao

引用次数: 0

Use of Recycled Asphalt and Waste Materials in Production of High-Performance Asphalt Mixtures 利用再生沥青和废料生产高性能沥青混合料

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-12-23 DOI: 10.7250/bjrbe.2022-17.582

R. Izaks, Liga Gebauere, Raivis Sparans, Romans Kornisovs, V. Haritonovs

{"title":"Use of Recycled Asphalt and Waste Materials in Production of High-Performance Asphalt Mixtures","authors":"R. Izaks, Liga Gebauere, Raivis Sparans, Romans Kornisovs, V. Haritonovs","doi":"10.7250/bjrbe.2022-17.582","DOIUrl":"https://doi.org/10.7250/bjrbe.2022-17.582","url":null,"abstract":"The research has been conducted to test the asphalt produced in Latvia using local mineral materials and local recycled modifiers (fiberglass, crumb rubber), as well as the recycled asphalt used in the production of high-modulus asphalt mix, which will meet the local Latvian road construction specifications and will be economically, environmentally and technically more attractive. In the theoretical part, the available sources were studied to establish a theoretical framework, assess possibilities for using recycled materials, define the concept of fiberglass, and consider its performance in asphalt mixes. During the experimental stage of the research, different asphalt mix formulas with glass fiber, crushed rubber, RAP, and other additives used to stabilize asphalt mixtures for surface and base layers were designed in the laboratory; they were compared to the reference mixes using performance tests. Then the mixtures with the best results were used in the test section of a high-intensity local road. The samples of the asphalt layers of the paved test section were tested as well. Two asphalt mixes were designed according to local Latvian road-building specifications, using fiberglass reinforcement 0.15% + 30% RAP for the base layer and crushed rubber 15% and RAP 30%+EVOFLEX CA© variable for the surface layer. The aim of the research is to offer solutions for reducing new asphalt pavement production allowing for the use of recycled asphalt mixes in local road building. The performance tests of the test asphalt mixes showed that recycled asphalt pavement fully meets the requirements of the local Latvian road-building specifications.","PeriodicalId":297140,"journal":{"name":"The Baltic Journal of Road and Bridge Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125033827","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

Black Ice Prediction Model for Road Pavement Using Weather Forecast Data and GIS Database 基于天气预报数据和GIS数据库的道路路面黑冰预测模型

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-12-23 DOI: 10.7250/bjrbe.2022-17.579

T. M. Phan, Min-Seok Jang, Dae-Wook Park

{"title":"Black Ice Prediction Model for Road Pavement Using Weather Forecast Data and GIS Database","authors":"T. M. Phan, Min-Seok Jang, Dae-Wook Park","doi":"10.7250/bjrbe.2022-17.579","DOIUrl":"https://doi.org/10.7250/bjrbe.2022-17.579","url":null,"abstract":"Black ice is a thin coating of ice on the road surface, which strongly reduces friction at the tire-road surface, resulting in dangerous driving when it happens. An appropriate diagnostic of black ice could prevent traffic accidents as well as provide timely notice to drivers. Therefore, this study aims at developing a black ice prediction model to diagnose the probability of black ice formation. Several combinations that can form road ice have been considered, including freezing rain, hoar frost, freezing of wet roads. In addition, black ice risky index (BRI) has been computed to reflect the probability of black ice formation. To acquire a fast prediction and high accuracy, the existing Geographical Information System (GIS) database and meteorological data have been utilized. GIS database includes road geometry and location of automatic weather stations, while the meteoritical data consists of air temperature, wind speed, humidity, cloud cover. The model has been developed based on the Python programming language. A 5-km road condition was observed from 1 December to 31 December 2021 to determine the model accuracy. Based on the results from the prediction model, black ice formation has been verified when the BRI is higher than 0.8. The model may be useful to develop black ice diagnostic program.","PeriodicalId":297140,"journal":{"name":"The Baltic Journal of Road and Bridge Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126909316","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

A Novel Approach to Analysis of Road Accidents Using the Trend Analysis and IPTA Method: A Case Study of Kosovo 使用趋势分析和IPTA方法分析道路交通事故的新方法:以科索沃为例

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-12-23 DOI: 10.7250/bjrbe.2022-17.576

Ramadan Mazrekaj, B. Đurin, A. Shala, Shpetim Lajqi, E. Alamatian

引用次数: 1

Modeling of Effective Parameters for Capacity Prediction at Signalized Intersection Lanes 信号交叉口车道通行预测的有效参数建模

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-12-23 DOI: 10.7250/bjrbe.2022-17.578

M. Aydın

{"title":"Modeling of Effective Parameters for Capacity Prediction at Signalized Intersection Lanes","authors":"M. Aydın","doi":"10.7250/bjrbe.2022-17.578","DOIUrl":"https://doi.org/10.7250/bjrbe.2022-17.578","url":null,"abstract":"Current capacity manuals do not allow comprehensively evaluating negative effects on lane capacity caused by undisciplined vehicle movements and lane utilization, such as failure to obey distance rules, lane blockage caused by roadside parking effect, formation of an extra lane using in the emergency lane, etc., which are mostly observed in undeveloped and developing countries. Irregularities of the traffic flow caused by undisciplined movements and lane utilization result in decreased capacity or traffic change on the urban lanes. To overcome this problem, a lane-based study was carried out to determine the relation among effective parameters and their effect on lane capacity. In order to model the impact of these parameters, a comprehensive study was conducted in two cities in Turkey. Two different methods (statistical analysis and metaheuristic search algorithm) were used for this purpose and new more reasonable lane capacity estimation models (ALLCEM-1 and ALLCEM-2) were developed by examining all local conditions. The results proved that both examined methods are effective in modelling lane capacity of signalized intersections. It was also found that such parameters as the type of intersection (either a roundabout or not), effective green time, saturation flow rate, traffic volume, heavy vehicle ratio, and the number of actively used lanes have a major impact on the accuracy of prediction of road capacity.","PeriodicalId":297140,"journal":{"name":"The Baltic Journal of Road and Bridge Engineering","volume":"338 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134066791","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

Dynamic Stray Current Measuring Methods in Urban Areas 城市杂散电流动态测量方法

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-12-23 DOI: 10.7250/bjrbe.2022-17.583

K. Vranešić, M. Serdar, S. Lakušić, V. Kolář, A. Mariscotti

引用次数: 3

Data Envelopment Analysis for Efficiency Measurement of Bridge Resilience 桥梁回弹效率测量的数据包络分析

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-12-23 DOI: 10.7250/bjrbe.2022-17.585

V. Lad, D. A. Patel, K. Chauhan, K. A. Patel

引用次数: 0

Numerical Study of Road Embankment Type Action on Shear Stress Around Skewed Bridge Abutment 路堤型对斜交桥台剪切应力作用的数值研究

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-12-23 DOI: 10.7250/bjrbe.2022-17.581

M. Asadi, F. Kilanehei, A. Mahjoob

{"title":"Numerical Study of Road Embankment Type Action on Shear Stress Around Skewed Bridge Abutment","authors":"M. Asadi, F. Kilanehei, A. Mahjoob","doi":"10.7250/bjrbe.2022-17.581","DOIUrl":"https://doi.org/10.7250/bjrbe.2022-17.581","url":null,"abstract":"This paper investigates the effect of different geometries of approach embankments and guides banks on the flow pattern and bed shear stress values in the skewed bridges in the compound channel using three-dimensional numerical modelling. First, the numerical model was evaluated based on the results of existing laboratory studies. After ensuring its proper performance, the elliptical guide bank and the three types of abutments: vertical-wall, spill-through, and wing-wall, at different skew angles are examined. Investigation of the values of maximum velocity and bed shear stress at the flow-conducting embankment and the flow-splitting embankment showed that in the flow-conducting embankment, the best performance is assigned to the elliptical guide bank. In contrast, the performance of various abutments is different for the flow-splitting embankment depending on the skew angle of the bridge. Then, different patterns based on streamlines for the geometry plan of the guide bank were proposed and studied. The results show that the most suitable pattern for the guide bank reduces the maximum flow velocity by up to 15% and reduces the maximum bed shear stress by up to 80% around the flow-splitting embankments.","PeriodicalId":297140,"journal":{"name":"The Baltic Journal of Road and Bridge Engineering","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114803716","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

Impact of E-Scooters on Road Safety: A Case Study in Lithuania 电动滑板车对道路安全的影响:以立陶宛为例

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-12-23 DOI: 10.7250/bjrbe.2022-17.577

Vilma Jasiūnienė, Aja Tumavičė

{"title":"Impact of E-Scooters on Road Safety: A Case Study in Lithuania","authors":"Vilma Jasiūnienė, Aja Tumavičė","doi":"10.7250/bjrbe.2022-17.577","DOIUrl":"https://doi.org/10.7250/bjrbe.2022-17.577","url":null,"abstract":"The rapidly g rowing popularity of electric scooters in recent years has allowed the road user to choose another alternative mode of transportation. On the one hand, it is an ecological means of transportation in the city, allowing you to quickly reach your destination; on the other hand, it is a vehicle that causes risk to road safety. Although this is a fairly new mode of transport, it is already of great concern for road safety authorities. E-scooter accidents are recorded with all road users – pedestrians, bicyclists, motor vehicles, other e-scooter riders, or even alone. In this article, the analysis made according to the accident data of 2019–2020 showed that the highest number of accidents occurred between e-scooters and vehicles. Most e-scooter accidents with motor vehicles occur in the intersection zone or during a vehicle turning manoeuvre to (or from) side streets and exit lanes. A descriptive statistical analysis showed that the proportions of the distribution of road accidents between accident participants changed significantly during the analysis period – the number of road accidents between e-scooters and bicycles increased, while the number of accidents between e-scooters and pedestrians decreased. The road accidents between e-scooters and other vulnerable road users are usually caused by sudden, unexpected manoeuvring of road users. Identification of accident schemes and locations is an additional tool for traffic organisation specialists and road safety professionals to prevent accidents, injuries, and fatalities.","PeriodicalId":297140,"journal":{"name":"The Baltic Journal of Road and Bridge Engineering","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132830298","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

Simulation-Based Reliability Analysis of Steel Girder Railway Bridges 基于仿真的铁路钢梁桥梁可靠性分析

The Baltic Journal of Road and Bridge Engineering Pub Date : 2022-09-28 DOI: 10.7250/bjrbe.2022-17.568

Mehmet Fatih Yilmaz, K. Ozakgul, Barlas Ozden Caglayan

{"title":"Simulation-Based Reliability Analysis of Steel Girder Railway Bridges","authors":"Mehmet Fatih Yilmaz, K. Ozakgul, Barlas Ozden Caglayan","doi":"10.7250/bjrbe.2022-17.568","DOIUrl":"https://doi.org/10.7250/bjrbe.2022-17.568","url":null,"abstract":"Bridges are an essential component of the transportation system and safety and sustainability of bridges are critical for the efficient operation thereof. Due to scarcity of resources, an economical way should be determined to design and maintain bridges and the transportation system in general. Reliability indexes are widely used in the analysis of these concepts within a semi-probabilistic approach. However, advances in computer technology allow implementing a fully-probabilistic approach. This study represents a simulation-based reliability analysis of steel girder bridges in the railway lines. Statistical parameters of the bridges are determined both analysing the existing body of knowledge available in the literature and conducting specimen tests. The Bayesian approach is used to update the statistical properties of the steel material. Basic Monte Carlo Simulation (MCS) is used to simulate the load and resistance of the bridge. The reliability of the bridges is determined according to their ultimate limit states and statistical load distribution. By using simulation, the consistency of the log-normal marginal distribution obtained is analysed herein.","PeriodicalId":297140,"journal":{"name":"The Baltic Journal of Road and Bridge Engineering","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126002375","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