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A planning support system for boosting walkability 提高步行能力的规划支持系统
IF 1.3 4区 工程技术 Q2 Engineering Pub Date : 2023-12-28 DOI: 10.1680/jmuen.23.00040
Madiha Bencekri, Doyun Lee, Donggyun Ku, Seungjae Lee
This study introduces a Walkability Planning Support System (W-PSS), a novel framework designed to revolutionize urban walkability within the 15-minute city concept. The W-PSS stands out for its approach that develops a new walkability index, underscores pertinent explanatory variables, and introduces a methodology for sculpting diverse walkability scenarios using the Multiscale Geographical Weighted Regression model which achieved an adjusted R-squared of 67.3%. Central to the findings is the significant role of employment density in enhancing walkability, and the nuanced interplay between commercial and population densities. A particularly insightful revelation is the unexpected negative correlation between cycling and walkability, emphasizing the need for a meticulous strategy to avoid cyclist-pedestrian conflict by harmoniously integrating and balancing both modes. Additionally, while cities with robust public transit showed limited room for enhancement, safety, and green space emerged as opportunities for refinement. Conclusively, informed by these insights, this research furnishes tailored scenarios and policy recommendations to foster enhanced walkability in urban landscapes. While the W-PSS framework offers a universal planning support system model for assessing and improving walkability, the study acknowledges that the concluded insights and implications vary based on each city's unique characteristics. Therefore, the application and the interpretation of results should be tailored.
本研究介绍了步行能力规划支持系统(W-PSS),这是一个新颖的框架,旨在彻底改变 15 分钟城市概念中的城市步行能力。W-PSS 的突出之处在于它开发了一种新的步行能力指数,强调了相关的解释变量,并引入了一种方法,利用多尺度地理加权回归模型设计出多种步行能力方案,调整后的 R 平方达到 67.3%。研究结果的核心是就业密度在提高步行能力方面的重要作用,以及商业密度和人口密度之间微妙的相互作用。一个特别有洞察力的启示是,自行车与步行适宜性之间存在意想不到的负相关关系,这强调了通过和谐整合和平衡两种交通方式来避免自行车与行人冲突的缜密策略的必要性。此外,虽然公共交通发达的城市显示出有限的提升空间,但安全和绿地成为了改进的机会。最后,根据这些见解,本研究提供了量身定制的方案和政策建议,以促进城市景观中步行宜居性的提高。虽然 W-PSS 框架为评估和改善步行适宜性提供了一个通用的规划支持系统模型,但本研究承认,根据每个城市的独特性,得出的见解和影响也各不相同。因此,对结果的应用和解释应量体裁衣。
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引用次数: 0
Where and how often do people touch train interiors? An Investigation for future pandemic prevention 人们接触火车内饰的地点和频率?关于未来大流行病预防的调查
IF 1.3 4区 工程技术 Q2 Engineering Pub Date : 2023-12-19 DOI: 10.1680/jmuen.23.00027
Chloe Mow, Sebastian Seriani, Taku Fujiyama
The Covid-19 pandemic highlighted infection and hygiene as risks in dense public spaces, including public transport vehicles. This study investigated passenger touching behaviour within metro vehicles to understand the fomite exposure of passengers. Using in-vehicle CCTV on three lines of the London Underground, this paper investigated the number of touches on different types of train interiors and investigated their relationship with passenger density and movement. In total, 1,818 station sections and 16,891 passengers were observed cumulatively from May to December 2021. The results showed that on average for each type of interiors on Victoria and Jubilee lines, there were between 0.07 to 0.57 touches per passenger movement (i.e. boarding or alighting) for deep tube lines, whilst District line that uses larger carriages showed a different tendency. The results also suggested that for deep tube lines, the number of touches per person increased beyond a density of around 1.5 standing passengers per square meter possibly because passengers may touch interiors more in order not to bump into other passengers. These findings can be used in infection risk modelling and can inform mitigation of infection risk of future pandemics.
Covid-19 大流行凸显了密集公共场所(包括公共交通车辆)中的感染和卫生风险。本研究调查了乘客在地铁车辆内的触摸行为,以了解乘客的螨虫暴露情况。本文利用伦敦地铁三条线路的车内闭路电视,调查了不同类型列车内部的触摸次数,并研究了它们与乘客密度和移动的关系。2021 年 5 月至 12 月期间,共累计观察了 1,818 个车站区段和 16,891 名乘客。结果显示,在维多利亚线和朱比利线的每种内饰类型中,深管线每次乘客移动(即上车或下车)的平均触碰次数在 0.07 至 0.57 之间,而使用大型车厢的地区线则呈现出不同的趋势。研究结果还表明,在地铁深层线路中,当站立乘客密度超过每平方米 1.5 人左右时,人均触碰次数会增加,这可能是因为乘客为了不碰到其他乘客,可能会更多地触碰内饰。这些发现可用于感染风险建模,并为降低未来流行病的感染风险提供参考。
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引用次数: 0
Strategies for addressing exposure to extreme heat in a slum community 解决贫民窟社区极端高温暴露问题的策略
IF 1.3 4区 工程技术 Q2 Engineering Pub Date : 2023-12-19 DOI: 10.1680/jmuen.23.00022
Olumuyiwa Bayode Adegun
Climate change is resulting in higher temperatures and the problem of heat stress, which significantly affects the urban population. Poor households living within low-income urban communities are disproportionately affected by these problems. This article reports an investigation of coping strategies among residents in a low-income community within Lagos, Nigeria. The study utilized a mixed-method approach – community survey (sample size = 300 residents) and semi-structured interviews with 15 purposively selected residents. The survey data was analysed statistically, while content analysis was conducted on the interview transcripts. The findings indicate range of personal/behavioural preventive and reactive strategies and building-related measures utilized to address the challenge of increasing heat within the community. Notably, greening-related practices (for planting trees, cultivating gardens) did not rank high among the residents. They are willing to pay modest amount towards greening and environmental features but not as much as housing modifications to enhance thermal comfort in the face extreme heat. The study contributes evidence of local coping strategies for heat exposure among disadvantaged urban residents, providing a pedestal on which heat adaptation initiatives can be developed.
气候变化导致气温升高,热应激问题严重影响城市人口。生活在城市低收入社区的贫困家庭受到这些问题的影响尤为严重。本文报告了对尼日利亚拉各斯低收入社区居民应对策略的调查。研究采用了一种混合方法--社区调查(样本量 = 300 名居民)和对 15 名特意挑选的居民进行半结构化访谈。对调查数据进行了统计分析,对访谈记录进行了内容分析。研究结果表明,为应对社区内日益严重的高温挑战,采取了一系列个人/行为预防和应对策略以及与建筑相关的措施。值得注意的是,与绿化有关的做法(植树、开垦花园)在居民中的排名并不靠前。他们愿意为绿化和环境设施支付少量费用,但不愿意为改善极端高温下的热舒适度而对房屋进行改造。这项研究提供了城市弱势居民应对高温的当地策略的证据,为制定适应高温的举措提供了基础。
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引用次数: 0
Exploration of highway accidents temporal changes using traffic and climate big data 基于交通与气候大数据的公路交通事故时间变化研究
4区 工程技术 Q2 Engineering Pub Date : 2023-10-17 DOI: 10.1680/jmuen.23.00029
Donghyeok Park, Kyeongjoo Kwon, Juneyoung Park
Anthropogenic emissions of greenhouse gases accelerate global warming and contribute to further temperature increases. Global warming increases the likelihood of a shift towards more warm days and seasons and fewer cold days and seasons. Additionally, it causes changes in precipitation patterns. In earlier research, as ambient temperatures increase, cognitive performance decreases and the risk of crashing increases. Earlier, crash-frequency models were developed using various methodologies, but time-series crash-frequency prediction studies considering the effects of climate change are scarce. Therefore, the purpose of this study is to identify the correlation between crashes and climate change using big data and to develop crash-frequency models using an econometric model and a deep-learning model. Econometric models use autoregressive-integrated moving average and autoregressive-integrated moving average with exogenous variable that are traditional time-series methodologies. Deep-learning models use long short-term memory. This study approached crash occurrence by comprehensively considering climate change and traffic factors. Also, it differs from earlier studies in detailing the influence of independent variables on crashes. Through the results, the impact of climate change on accidents can be identified and it can contribute as an engineering basis for improving traffic safety.
人为排放的温室气体加速了全球变暖,并导致气温进一步升高。全球变暖增加了温暖天气和季节增多、寒冷天气和季节减少的可能性。此外,它还会导致降水模式的变化。在早期的研究中,随着环境温度的升高,认知能力下降,撞车的风险增加。早些时候,使用各种方法开发了碰撞频率模型,但考虑气候变化影响的时间序列碰撞频率预测研究很少。因此,本研究的目的是利用大数据确定坠机与气候变化之间的相关性,并利用计量经济学模型和深度学习模型开发坠机频率模型。计量经济模型使用传统的时间序列方法——自回归积分移动平均和带外生变量的自回归积分移动平均。深度学习模型使用长短期记忆。本研究综合考虑气候变化和交通因素,探讨交通事故的发生。此外,它与早期的研究在详细说明独立变量对碰撞的影响方面有所不同。通过研究结果,可以确定气候变化对交通事故的影响,并为改善交通安全提供工程依据。
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引用次数: 0
Behavioural changes in open space during COVID-19 with deep learning-based video analytics 基于深度学习的视频分析:COVID-19期间开放空间的行为变化
IF 1.3 4区 工程技术 Q2 Engineering Pub Date : 2023-09-08 DOI: 10.1680/jmuen.23.00020
Fei-Fei Zhang, Becky P.Y. Loo, Chang Jiang
While numerous studies have been done to examine the general trend of urban mobility during COVID-19, there is not enough research on changes in pedestrian behavioural characteristics and crowd dynamics in public space. Understanding and monitoring such changes are critical for the better management and design of public open space in case of future outbreaks of infectious diseases. To fill this gap, pedestrian movements are tracked and analysed with deep learning-based video analytics based on anonymized video footage along a major promenade in Hong Kong before and during COVID-19. Specifically, comparisons were made on pedestrian flow characteristics, pedestrian activities, and social distancing. Then, this study examines the dynamics of pedestrian crowding under different scenarios, using agent-based simulation. Model results suggest that the public space was characterized by fewer visitors, a higher average walking speed, a higher percentage of people exercising, and a lower percentage of people conducting stationary activities during COVID-19. In addition, a higher level of voluntary social distancing was observed. Several hotspots for pedestrian crowding were also identified. Learning from the above, it is suggested that multifunctional public space should be designed; and data-driven visitor management systems should be established to prepare for different scenarios in future cities.
虽然已有大量研究对2019冠状病毒病期间城市交通的总体趋势进行了研究,但对公共空间行人行为特征和人群动态变化的研究还不够。了解和监测这些变化对于在未来爆发传染病时更好地管理和设计公共开放空间至关重要。为了填补这一空白,研究人员利用基于匿名视频片段的深度学习视频分析技术,跟踪和分析了2019冠状病毒病之前和期间香港主要人行道上的行人活动。具体而言,比较了行人流量特征、行人活动和社会距离。然后,本研究采用基于智能体的仿真方法,研究了不同场景下行人拥挤的动态变化。模型结果表明,在2019冠状病毒病期间,公共空间的特点是游客较少,平均步行速度较高,锻炼的人比例较高,进行固定活动的人比例较低。此外,观察到自愿保持社会距离的程度更高。还确定了几个行人拥挤的热点。在此基础上,建议设计多功能公共空间;建立数据驱动的游客管理系统,为未来城市的不同场景做好准备。
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引用次数: 0
Use of digital technology to improve the way asphalt roads are constructed 利用数字技术改善沥青道路的建设方式
IF 1.3 4区 工程技术 Q2 Engineering Pub Date : 2023-07-24 DOI: 10.1680/jmuen.23.00005
M. Mchale, M. Gordon, A. Ferguson
Digital technology has the potential to improve the way asphalt roads are constructed and maintained. The application of technologies, such as remote monitoring and telemetry, are being used to improve the quality of asphalt materials during the construction phase. Based on real-time data, the movement and arrival of delivery vehicles can be monitored and material temperatures can be recorded at each stage of the paving process. Similarly, roller compactor passes can be mapped to show the number of passes, compaction temperature and area of mat covered. Importantly, the technology has the capacity to create a safer working environment for road workers. This paper describes a study that builds on previous work, with the aim of developing notes for guidance and compliance requirements for electronic data monitoring. A series of criteria are proposed to approve the level of compaction based on electronic data. The latter includes the adoption of a similar approach to that being used in the USA, although certain aspects have been adapted for the type of materials and equipment available in Scotland. It is intended that the compliance requirements will be trialled on forthcoming paving schemes to determine their effectiveness and whether further amendments are required.
数字技术有可能改善沥青道路的建设和维护方式。在施工阶段,正在使用诸如远程监测和遥测等技术来改善沥青材料的质量。基于实时数据,可以监控运输车辆的移动和到达,并记录铺装过程中每个阶段的材料温度。同样,碾压机的孔道也可以被映射出来,以显示孔道数、压实温度和覆盖的垫面面积。重要的是,这项技术有能力为道路工人创造一个更安全的工作环境。本文描述了一项建立在以前工作基础上的研究,其目的是为电子数据监测的指导和合规要求制定说明。提出了一系列的标准来批准基于电子数据的压缩水平。后者包括采用与美国类似的方法,尽管某些方面已经适应了苏格兰可用的材料和设备类型。我们打算在即将推出的铺路计划中试用符合规定的规定,以确定其有效性,以及是否需要进一步修订。
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引用次数: 0
Mobility challenges for senior passengers during the COVID-19 pandemic COVID-19大流行期间老年乘客的行动挑战
IF 1.3 4区 工程技术 Q2 Engineering Pub Date : 2023-07-19 DOI: 10.1680/jmuen.22.00033
Donggyun Ku, Dahye Kim, Seungjae Lee
In this study, we aim to clarify the differences in the factors influencing subway traffic behaviour of senior and non-senior passengers during the COVID-19 pandemic based on big data in Seoul, South Korea. A one-way analysis of variance is performed to analyse the influencing factors of subway use of senior and non-senior passengers during the COVID-19 pandemic. Furthermore, a multiple linear regression is conducted to identify the factors affecting senior and non-senior passengers. Finally, the traffic patterns of senior and non-senior passengers were analysed with respect to districts via geographically weighted regression. The spatial scope of this study includes Seoul, which consists of 25 districts (gu). The temporal range is from 1 January 2017 to 31 December 2020, and the number of people using subway in Seoul is used as the main dataset. The results suggest that senior passengers are more affected by subway than non-senior passengers, and the most influential factors are cultural gathering facilities and the number of subway stations. The regression model showed high explanatory power for southern Seoul, which has a high concentration of facilities related to the influencing factors.
本研究以韩国首尔为研究对象,利用大数据分析新冠肺炎疫情期间老年人和非老年人地铁交通行为影响因素的差异。采用单因素方差分析方法,分析新冠肺炎疫情期间老年人和非老年人乘坐地铁的影响因素。通过多元线性回归,找出影响高龄乘客和非高龄乘客出行的因素。最后,通过地理加权回归分析了各地区老年人和非老年人的交通模式。本次研究的空间范围包括由25个区(区)组成的首尔。时间范围为2017年1月1日至2020年12月31日,以首尔地铁乘坐人数为主要数据集。结果表明:地铁对老年乘客的影响大于非老年乘客,影响最大的因素是文化聚集设施和地铁站点数量。回归模型对影响因素相关设施高度集中的首尔南部地区具有较高的解释力。
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引用次数: 1
Challenges of implementing a land cadastre in Rio de Janeiro: the Bangu case study 在巴西里约热内卢实施土地地籍的挑战:班古案例研究
IF 1.3 4区 工程技术 Q2 Engineering Pub Date : 2023-07-03 DOI: 10.1680/jmuen.22.00040
L. Barbalho, Fernando Rodrigues Lima, Luiz Carlos Teixeira Coelho Filho
The urban environment of Rio de Janeiro has its own complexities when compared with other large cities in Brazil and around the world. In addition to its peculiar topographic structure, the history of the city – from its foundation to the present day – has led to unique and contradictory characteristics. A multipurpose land cadastre (MLC, in Portuguese: Cadastro Técnico Multifinalitário), since its inception in Brazil, promises to adapt urban environments to a new reality, facilitating the management of their entire territories by using tools such as geographic information systems. This study intends to identify and analyse the main issues that prevent Rio de Janeiro from establishing an effective MLC, most notably the existence of a variety of land-use bases with legal value, but which are contradictory if examined cartographically. This study was carried out by examining a subset of Rio de Janeiro: the Bangu neighbourhood. Bangu was chosen for being a considerably complex neighbourhood, with a variety of land uses that reflects the urban fabric of Rio de Janeiro as a whole. The analysis not only points out inconsistencies in current cadastral bases, but also suggests tasks and policies to help overcome them and provide the city with appropriate cadastral bases that reflect the reality of its urban soil.
与巴西和世界其他大城市相比,里约热内卢的城市环境有其自身的复杂性。除了其独特的地形结构,城市的历史-从它的基础到现在-导致了独特和矛盾的特征。多用途土地地籍(MLC,葡萄牙语:Cadastro t cnico Multifinalitário)自巴西开始实施以来,承诺使城市环境适应新的现实,通过使用地理信息系统等工具促进对其整个领土的管理。这项研究的目的是查明和分析妨碍里约热内卢建立有效的土地管理体系的主要问题,最明显的是存在各种具有法律价值的土地使用基础,但如果从地图上加以审查,这些基础是相互矛盾的。这项研究是通过检查里约热内卢的一个子集:班古社区来进行的。班古被选为一个相当复杂的社区,其各种土地用途反映了整个里约热内卢的城市结构。分析不仅指出了当前地籍基础存在的不一致之处,还提出了克服这些不一致之处的任务和政策建议,为城市提供合适的反映城市土壤现实的地籍基础。
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引用次数: 0
Accessibility as the determinant of attending educational opportunities in rural India 无障碍是印度农村教育机会的决定因素
4区 工程技术 Q2 Engineering Pub Date : 2023-06-01 DOI: 10.1680/jmuen.22.00024
Shivendu Shekhar Singh, Basudatta Sarkar
Physical access to education is a major issue of deliberation among governments, transport planners and policymakers. The status of physical access to educational institutes in the region is determined by the collective characteristics of the area, such as proximity and the level of services available. Transport accessibility in rural areas is challenging and affects the physical access to education in developing countries. Subsequently, a research enquiry is posed: does transport accessibility in the region affects access to educational opportunities in the rural context? If yes, what transport-related determinants influence access to educational opportunities? Census data is used for analysis, employing a multivariate regression approach using ordinary least squares estimation. The key revelations of the research are (a) proximity to the educational institute and transit are the critical determinants of attending the educational institute in rural India, (b) bicycle ownership improves attendance at educational institutes in the study region and (c) a considerable gender differential and the rural–urban gap in attending the higher educational institutes exist, signifying the accessibility poverty in the region. This study contributes a framework for analysing the transport accessibility determinants of attending educational opportunities in data-scarce conditions in the global south.
实际获得教育是各国政府、交通规划者和政策制定者审议的一个主要问题。该地区实际进入教育机构的状况是由该地区的集体特征决定的,例如邻近程度和可用服务水平。农村地区的交通可达性具有挑战性,并影响发展中国家的实际受教育机会。随后,提出了一项研究调查:该地区的交通可达性是否影响农村地区获得教育机会的机会?如果是,哪些交通相关的决定因素影响教育机会的获得?人口普查数据用于分析,采用多元回归方法,使用普通最小二乘估计。研究的主要启示是:(a)距离教育机构和交通是印度农村教育机构入学的关键决定因素;(b)自行车拥有量提高了研究地区教育机构的入学率;(c)在高等教育机构入学方面存在相当大的性别差异和城乡差距,表明该地区存在可达性贫困。本研究提供了一个框架,用于分析在南半球数据匮乏的情况下,交通可达性对受教育机会的决定因素。
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引用次数: 0
Ranking barriers & optimum solutions for public bicycle sharing system: an MCDM approach 基于MCDM的公共自行车共享系统障碍排序与优化解决方案
IF 1.3 4区 工程技术 Q2 Engineering Pub Date : 2023-04-24 DOI: 10.1680/jmuen.23.00002
S. J. Patel, C. Patel, Bhavesh N. Dhonde
Decision-makers around the world adopted Public Bicycle Sharing System (PBSS) due to its easy access at major strategic locations and its user-friendly operations. The documented studies identify various barriers and solutions for PBSS but study on identification of optimum solution for varied conditions is limited. Therefore, the purpose of this study is to rank the barriers and solutions for PBSS implementation for Indian urban areas. As the framework is robust so methodology can apply globally. Initially, 31 PBSS barriers and 14 solutions were identified after reviewing literature and assessment from professionals. Finally, two Multi-Criteria Decision-Making methods (MCDM) were integrated to rank barriers and solutions for Indian cities using an expert opinion survey. The result shows that infrastructure barriers of the city, social barrier for cycling and travel characteristics barriers have more impact in the main criteria whereas presence of exclusive bicycle lane, government policies and provision of modified and e-bicycle are found to be the most optimum solutions and have potential to overcome the influence of barriers. The outcome of this research will help various stakeholders to develop pro-cycling policies, decision on financial resource allocation, understanding on the existing barriers and solutions to develop future policy to increase PBSS usage.
世界各地的决策者都采用了公共自行车共享系统(PBSS),因为它在主要战略地点方便访问,而且操作方便。文献研究确定了PBSS的各种障碍和解决方案,但在不同条件下确定最佳解决方案的研究有限。因此,本研究的目的是对印度城市地区实施PBSS的障碍和解决方案进行排名。由于框架是健壮的,因此方法可以在全球范围内应用。最初,在回顾文献和专业人士的评估后,确定了31个PBSS障碍和14个解决方案。最后,结合两种多标准决策方法(MCDM),利用专家意见调查对印度城市的障碍和解决方案进行排名。结果表明,城市基础设施障碍、社会骑行障碍和出行特征障碍在主要标准中影响较大,而设置专用自行车道、政府政策和提供改装自行车和电动自行车是最优解决方案,具有克服障碍影响的潜力。本研究的结果将有助于各利益相关方制定支持自行车骑行的政策、财政资源分配决策、了解现有障碍以及制定未来政策以提高PBSS使用率的解决方案。
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引用次数: 1
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Proceedings of the Institution of Civil Engineers-Municipal Engineer
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