Research on Planning and Design of Multi-Story Prefabricated Electric Bicycle Charging Parking Lot in Urban and Rural Areas

In recent years,disorderly parking and difficult charging of electric bicycles have been challenges in urban management.The rapid growth of electric bicycles is in contradiction with the lack of dedicated parking spaces and charging service facilities in towns and villages.To solve the issue of parking and charging electric bicycles in limited urban and rural spaces,prefabricated building technology is applied to the design of a multi-story electric bicycle parking lot.The multi-story prefabricated electric bicycle parking lot is utilized in urban and rural planning and design to upgrade parking facilities in old urban areas,land-constrained commercial areas,as well as counties,towns,and rural areas with inadequate municipal facilities.Multi-story prefabricated electric bicycle parking lots are the application exploration of industrial buildings,and promote the high-quality development planning and construction of towns and counties and villages.Compared with the single-story metal charging station,the multi-story assembled electric bicycle parking lot has the characteristics of integrating parking and charging,being more durable and safer in structure,accommodating a large number of vehicles,and improving the space utilization rate.

Reservation Based Optimal Parking Lot Recommendation Model in Internet of Vehicle Environment

In order to solve the problem that the drivers can't find the optimal parking lot timely,a reservation based optimal parking lot recommendation model in Internet of Vehicle(IoV) environment is designed.Based on the users oriented parking information recommendation system,the model considers subjective demands of drivers comprehensively,makes a deeply analysis of the evaluation indicators.This recommendation model uses a phased selection method to calculate the optimal objective parking lot.The first stage is screening which based on the users' subjective parking demands;the second stage is processing the candidate parking lots through multiple attribute decision making.Simulation experiments show that this model can effectively solve the problems encountered in the process of finding optimal parking lot,save the driver's parking time and parking costs and also improve the overall utilization of parking facilities to ease the traffic congestion caused by vehicles parked patrol.

Planning of Public Parking Lots in Xiajiang County

In order to solve the contradiction between the rapid growth of urban motor vehicles and the lack of road traffic resources to fundamentally improve the problem of "difficult driving and difficult parking", it is necessary to carry out scientific planning and design of urban parking lots. The study analyzed the main problems of urban parking, discussed the planning principles and countermeasures of parking lot planning, and briefly introduced the practical experience of the special parking lot planning of the central urban area in Xiajiang County, Ji’an City, Jiangxi Province. It is hoped that through parking lot planning, the contradiction between supply and demand of urban parking can be effectively alleviated and the urban traffic environment can be improved.

Quantifying Contribution of DER-Integrated EV Parking Lots to Reliability of Power Distribution Systems

In the future smart cities,parking lots(PLs)can accommodate hundreds of electric vehicles(EVs)at the same time.This trend creates an opportunity for PLs to serve as a potential flexibility resource,considering growing penetration of EVs and integration of distributed energy resources DER(such as photovoltaic and energy storages).Given this background,this paper proposes a comprehensive evaluation framework to investigate the potential role of DER-integrated PLs(DPL)with the capability of vehicle-to-grid(V2G)in improving the reliability of the distribution network.For this aim,first,an overview for the distribution system with DPLs is provided.Then,a generic model for the available generation capacity(AGC)of DPLs with consideration of EV scheduling strategy is developed.On the above basis,an iterative-based algorithm leveraging sequential Monte Carlo simulation is presented to quantify the contribution of DPLs to the reliability of the system.In order to verify the effectiveness of the proposed method,a series of numerical studies are carried out.The simulation results show that the integration of DPLs with the V2G capability could help to improve the reliability performance of distribution grid to a great extent and reduce the adverse impact incurred by EV accommodation,if utilized properly.

Hot Spot Analysis and Development Trend of Intelligent Roof Parking Lot:Bibliometric Analysis Based on CiteSpace Visualization Software

Using CiteSpace visualization software,literature research on roof parking lot in recent 20 years is analyzed,and the research direction and development of the relevant papers are integrated and induced.From utilization development,roof greening and technical practice,overall consideration and grasp of the feasibility of roof parking lot are conducted.Realization paths of two kinds of roof parking lots are provided:suspended PRT stereo parking lot and telescopic rail elevator,and it is committed to providing feasible suggestions and reference for future roof parking lot.

Area Classification of Surrounding Parking Facility Based on Land Use Functionality

The different land use surrounding parking facility has significant impact on parking behavior. This paper studies the functional classification of land use surrounding parking facility, which is fundamentally important for indepth research on parking behavior. 37 parking facilities located between the second and sixth ring roadway in Beijing were selected for this study. Based on the surveys conducted at these parking facilities, various parking behavior were analyzed, based on which the scope of the different parking was determined. The information on location, land use characteristics, public transport, the surrounding parking situations are collected for each investigated parking facility. Applying the SPSS clustering method, the threshold was developed for the classification. Totally, five categories are proposed for the land use functionality surrounding parking facility as the results of this study.

Determinants of COVID-19 Face Mask Litter in Coastal Urban Parking Lots: Implications for Source Modelling of Potential Microplastic Pollution

Despite cities being recognized as being potential sources of microplastic pollution to the wider environment, most surveys of COVID-19 plastic-based litter have been undertaken through linear transects of marine beaches. For the far fewer number of studies conducted on inland and urban locations, the site-specific focus has primarily been surveys along the length of streets. The present study is the first to specifically assess the standing stock (i.e., moment-in-time) of littered face masks for the entire surface area of urban parking lots. The density of face masks in 50 parking lots in a Canadian coastal town (0.00054 m2 ± 0.00051 m2) was found to be significantly greater than the background level of littering of town streets. Face mask density was significantly related to visitation “usage” of parking lots as gauged by the areal size of the lots and of their onsite buildings, as well as the number of vehicles present. Neither parking lot typology nor estimates of inferred export (various measures of wind exposure) and entrapment (various metrics of obstruction) of face masks had a significant influence on the extent of whole-lot littering. In consequence, modelling of the potential input of mask-derived microplastics to the marine environment from coastal communities can use the areal density of face masks found here in association with the total surface area of lots for individual municipalities as determined through GIS analysis.

基于改进ALARP风险矩阵的危货运输车辆专用停车场安全性评价研究

为评估危货运输车辆专用停车场安全水平,降低危货车辆停放环节风险,提出一种基于改进ALARP风险矩阵的危货运输车辆停车场安全性评价方法。首先,基于事故案例统计数据、在开展致因分析、故障树构建、指标初选、信效度检验的基础上,构建危货运输车辆专用停车场安全风险评级指标体系;其次,结合贝叶斯网络、层次分析法、模糊综合评价法和改进ALARP的风险矩阵法,提出危货运输车辆专用停车场安全风险评价模型;再次,在考虑已知风险可能性、风险损失量化结果的基础上,基于改进ALARP风险矩阵得到专用停车场风险总评价量化值及评价等级;最后,以重庆市某危险货物运输车辆专用停车场为例开展验证分析,验证结果表明,研究所得到的评价结果与实际情况具有较高的一致性。

智能室内停车场定位导航系统设计

如今,各大商场的地下停车场日趋普遍化和复杂化。随着汽车持有量的急剧增长,车主在庞大的地下停车场中泊车寻车成为了难题。为此,提出了一种实现智能导航和停车管理的解决方案。依据室内定位及导航技术的应用需求,利用光敏模块、环形线圈检测及红外循迹技术,对停车场地形进行红外扫描,通过STM32单片机将数据传输到接收端。用户只需按照主控制器返回给终端的信息,即可快速实现点对点的定位服务。这一方案旨在提高人们出行的便捷性,并为加强城市停车规范管理提供可行性方案。

城市轨道交通带上盖物业开发的停车场无线通信覆盖方案及关键技术

[目的]城市轨道交通带上盖物业开发的停车场设计非常复杂,需增加较多的柱网,且上盖物业开发后,综合楼楼顶架设全向天线将无法覆盖停车场地面区域。为了有效解决带上盖物业开发的停车场无线通信覆盖,需对带上盖物业开发停车场的无线通信覆盖方案及关键技术进行研究。[方法]以西安地铁6号线带上盖物业开发的纺织城停车场TETRA(泛欧集群无线电)通信系统工程设计为依托,鉴于无线通信覆盖工程的难点,提出了无线通信系统的频率规划分配方案;针对该停车场的运用库、道岔区、出入段线以及场内非盖下区域道路,提出了无线通信覆盖方案。[结果及结论]纺织城停车场采用FA频组进行无线覆盖时,保证了频率间隔,避免了同频干扰;纺织城停车场引入公安无线通信系统,采用与专用无线通信系统信号合路覆盖方案;盖下停车场区域采用定向天线替代楼顶全向天线覆盖方式,其中运用库采用天线对射,咽喉区采用天线补强,U型槽采用天线覆盖解决越区切换,周边道路利用建筑物侧墙或立柱采用定向天线进行覆盖。提出的带上盖物业开发的停车场无线通信覆盖方案,降低了系统干扰以及对既有运营的影响,有效解决了盖下停车场的无线通信覆盖,节约了工程投资。

基于动态步长梯度下降的EKF-SLAM改进算法

现代重型货物运输所处环境日益复杂,要求AGV-SLAM算法具备更高的鲁棒性和准确性以实现高精确装卸作业.因此,本文提出基于动态步长梯度下降的改进EKF-SLAM算法.首先对AGV行进过程建模分析,分别建立AGV的运动学模型和观测模型.考虑到EKF-SLAM算法在状态估计时可能引入的截断误差问题,本文针对AGV自身位姿和环境特征位置预测估计精确度较低的问题,提出了一种改进算法.该算法引入梯度下降算法,并结合动态步长策略,步长的取值与AGV系统的前进速度、采样时间正相关.仿真结果表明,该改进算法相较于标准EKF-SLAM算法,在停车场数据集下能够快速生成更优的估计路标和路径,从而在一定程度上提高了传统算法的鲁棒性和准确性,具有行业应用的参考价值.

轨道交通换乘停车场运营效果评价方法及其应用

换乘停车场作为城市交通体系中的重要节点,其运营效果影响城市交通环境,但目前对其评价研究较少。在对比换乘停车场与一般停车场的共性和特性,并分析换乘停车场运营效果影响因素的基础上,从停车效果、换乘效果和社会效果角度建立换乘停车场运营效果评价指标体系;依据《城市道路交通管理评价指标体系》及问卷调查结果,制定换乘停车场运营效果分级标准;并运用层次分析法建立换乘停车场运营效果评价模型,对苏州轨道交通龙道浜站换乘停车场进行评价,得出评价等级为C级,并提出运营管理建议。

基于区块链的校园智能停车能源交易平台的设计

提出一个基于区块链的智能校园停车场电动汽车能源交易平台。智能停车场是能够同时支持电动汽车停车和充电服务的智能场所,该系统架构由物理和网络基础设施层组成,区块链技术是促进参与者之间能源交易的有效途径。定义了参与者、资产、交易以及相互之间的智能链接,研究了两种场景,一个场景是电动汽车作为卖方和控制器作为买方之间的能源交易,第二个场景是电动汽车作为买方和控制器作为卖方之间的能源交易。这种平台既为参与者提供了利润,又平衡了大学校园高峰时期的能源负载需求。

已部分运营共址停车场整体上盖开发方案

[目的]为充分利用苏州日益紧张的城市土地资源,发挥其区位优势,以苏州轨道交通2号线和6号线桑田岛共址停车场为例,提出了对既有2号线停车场改造、与共址规划设计的6号线停车场同步进行整体上盖平台建设的已部分运营共址停车场整体上盖开发方案。[方法]对共址停车场上盖开发方案进行了必要性与可行性分析;介绍了停车场改造总平面及拆改技术方案和运营过渡技术方案,分析了桑田岛共址停车场上盖改造经济指标。[结果及结论]所提共址停车场整体上盖开发方案为:按预留上盖开发条件对2号线桑田岛停车场进行总图布置和设计,并为上盖开发预留落柱空间,新建2号线远期停车场后再拆除和改造既有停车场。所提共址停车场整体上盖开发方案能够有效提高既有线路运营过渡期与新建车场的共址车场工程匹配性,降低对既有线路运营的影响,实现建设过程中的先建后拆,减少废弃工程量,降低建设成本。

停车场出入场线暗挖区间施工技术

以某市环园中路停车场出入场线项目为背景,在停车场出入场线暗挖区间施工中,通过分析工程难点,采用杂填土层注浆加固、超前大管棚、暗挖区间矿山法、二次衬砌以及地基处理等关键技术,成功克服了杂填土段开挖和下穿商场等难题。工程实践结果表明,该施工方案高效、安全、可控。

中心城区停车场现状问题分析及对策建议——以黄冈市为例

当前,黄冈市中心城区停车位相对不足,停车难问题十分凸显,“停车难”“道路堵”已经成为妨碍城市整体环境提升、制约城区发展的难点与焦点问题。与此同时,随着城镇化建设进程的加快和国民生活水平的不断提高,机动车持续保持上升趋势,现有的停车设施存量无法适应该增长需求。面对上述停车问题的高压态势,缓解黄冈市中心城区停车供需矛盾,满足社会经济和停车发展的要求,促进黄冈市中心城区停车设施科学可持续发展需要引起高度重视。

市域(郊)铁路地下停车场上盖综合开发与实践

我国步入多层次轨道交通发展的新时期,四网融合中干线铁路、城际铁路、城市轨道交通发展较为成熟,而市域(郊)铁路的发展正处于兴起态势,围绕市域(郊)铁路场站的综合开发研究也在逐步推进。从设计层面提出项目选址、功能策划、停车场布局、盖上开发物业及一体化设计是影响地下停车场上盖综合开发的5个重要因素,以上海市域铁路申昆路地下停车场上盖综合开发进行实践验证,并建设成为国内首例市域铁路地下停车场上盖综合开发项目,希望能够为同类型项目提供借鉴与参考。

太阳能光伏在公交停保场中的应用

本文介绍了太阳能光伏系统的基本知识,如设备选型、孤岛效应等;并对如何计算光伏板安装面积和板间距以及逆变器所带组件数量等做了详细介绍;最后以一个公交停保场屋顶光伏系统设计项目为实例,论述了如何结合项目特点合理设计光伏系统和布置光伏组件。

基于LisFlood-SWMM耦合模型的城市停车场所积水风险评估

全球变暖气候变化导致特大暴雨频发,城市化水平提高下建成区面积不断增加,由此引发的洪涝灾害风险居高不下,城市内涝发生时市内车辆泡水现象频发。本文以深圳市福田区城市停车场为研究对象,利用POI(兴趣点)数据爬取方法构建了深圳市福田区的停车场数据库,根据LisFlood-SWMM模型模拟了不同降雨情景下的淹没情况。以此为基础,划分了内涝造成的积水风险等级,得到了不同降雨情景下城市停车场所积水风险评估,并提出了风险防范措施建议,对我国城市停车场积水风险评估具有一定参考意义。

车场规模与交通规划导向下的城市综合交通枢纽设计策略——以新乡东站西广场综合交通枢纽为例

随着近几年铁路交通快速发展,综合交通枢纽作为城市与国家铁路网线的重要节点,其规划建设的重要性与日俱增。面对逐年增长的铁路客运量,既有站房配套交通车场已经难以满足城市交通发展需求,面对新一轮更新改建,如何打造出立体、便捷、畅通的综合交通枢纽成为当下城市亟待解决的问题。本文结合新乡东站西广场综合交通枢纽规划设计实践,对既有客站交通现状痛点问题调研分析,通过客流量预测,科学定位车场规模与交通组织,提出新形势下“无风雨、零换乘”大型综合交通枢纽设计思路,为今后铁路交通枢纽实践设计提供参考。