Search | Engineering

订阅投稿

首页工程期刊工程焦点工程成就工程前沿关于我们 English

资源类型

期刊论文 60

会议视频 3

年份

2023 3

2022 3

2021 12

2020 4

2019 1

2018 3

2017 7

2016 3

2015 3

2013 1

2012 1

2011 4

2010 2

2009 2

2008 4

2007 1

2006 2

2003 2

2002 1

2001 2

展开︾

关键词

交通 3

交通工程 2

发展 2

可持续发展 2

空中交通管理 2

轨道交通 2

Car-to-X 通信系统 1

IEEE 802-16e 1

PPP模式 1

QoS 1

TWW函数 1

agent迁移协议 1

agent通信语言 1

“一带一路”，公路，工程科技，基础设施 1

“五维”拥堵指数 1

交通信号控制；交通预测；交通世界模型；强化学习 1

交通信号灯协同控制 1

交通分析模型 1

交通基础设施 1

展开︾

检索范围：

排序：展示方式：

Multi-class dynamic network traffic flow propagation model with physical queues

Yanfeng LI, Jun LI

《工程管理前沿（英文）》 2017年第4卷第4期页码 399-407 doi: 10.15302/J-FEM-2017041

摘要： This paper proposes an improved multi-class dynamic network traffic flow propagation model with a consideration of physical queues. Each link is divided into two areas: Free flow area and queue area. The vehicles of the same class are assumed to satisfy the first-in-first-out (FIFO) principle on the whole link, and the vehicles of the different classes also follow FIFO in the queue area but not in the free flow area. To characterize this phenomenon by numerical methods, the improved model is directly formulated in discrete time space. Numerical examples are developed to illustrate the unrealistic flows of the existing model and the performance of the improved model. This analysis can more realistically capture the traffic flow propagation, such as interactions between multi-class traffic flows, and the dynamic traffic interactions across multiple links.

关键词： first-in-first-out (FIFO) multi-class traffic physical queues traffic flow modeling

HTML PDF 收藏

Traffic services for vehicles: the process from receiving raw probe data to space-time diagrams and theresulting traffic service

Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER

《工程管理前沿（英文）》 2017年第4卷第4期页码 490-497 doi: 10.15302/J-FEM-2017008

摘要： Today, large quantities of vehicle data (FCD: floating car data) are widely used by traffic service providers to create and broadcast traffic states in road networks. As a first processing step, all raw position data received from Global Positioning Systems (GPS) have to be map matched in a digital road map. The technical aspects of such a matching process for GPS data are described in this report. After the matching process, space-time-diagrams are created of the probe data showing traffic situation details over space and time. Various examples illustrate how traffic service quality depends on the number of matched GPS raw data; it will be stated that when 2% of connected vehicles in the total traffic flow are sending their GPS data in shorter time intervals, a high quality and precise reconstruction of the current traffic phases is achieved. Traffic reconstruction is followed by a translation into traffic information messages, which can be sent and used in vehicle navigation systems for driver information and dynamic route guidance.

关键词： floating car data map matching three phase traffic theory traffic reconstruction traffic service quality navigation systems

HTML PDF 收藏

Integrating storm surge modeling with traffic data analysis to evaluate the effectiveness of hurricane

《结构与土木工程前沿（英文）》 2021年第15卷第6期页码 1301-1316 doi: 10.1007/s11709-021-0765-1

摘要： An integrated storm surge modeling and traffic analysis were conducted in this study to assess the effectiveness of hurricane evacuations through a case study of Hurricane Irma. The Category 5 hurricane in 2017 caused a record evacuation with an estimated 6.8 million people relocating statewide in Florida. The Advanced Circulation (ADCIRC) model was applied to simulate storm tides during the hurricane event. Model validations indicated that simulated pressures, winds, and storm surge compared well with observations. Model simulated storm tides and winds were used to estimate the area affected by Hurricane Irma. Results showed that the storm surge and strong wind mainly affected coastal counties in south-west Florida. Only moderate storm tides (maximum about 2.5 m) and maximum wind speed about 115 mph were shown in both model simulations and Federal Emergency Management Agency (FEMA) post-hurricane assessment near the area of hurricane landfall. Storm surges did not rise to the 100-year flood elevation level. The maximum wind was much below the design wind speed of 150–170 mph (Category 5) as defined in Florida Building Code (FBC) for south Florida coastal areas. Compared with the total population of about 2.25 million in the six coastal counties affected by storm surge and Category 1–3 wind, the statewide evacuation of approximately 6.8 million people was found to be an over-evacuation due mainly to the uncertainty of hurricane path, which shifted from south-east to south-west Florida. The uncertainty of hurricane tracks made it difficult to predict the appropriate storm surge inundation zone for evacuation. Traffic data were used to analyze the evacuation traffic patterns. In south-east Florida, evacuation traffic started 4 days before the hurricane’s arrival. However, the hurricane path shifted and eventually landed in south-west Florida, which caused a high level of evacuation traffic in south-west Florida. Over-evacuation caused Evacuation Traffic Index (ETI) to increase to 200% above normal conditions in some sections of highways, which reduced the effectiveness of evacuation. Results from this study show that evacuation efficiency can be improved in the future by more accurate hurricane forecasting, better public awareness of real-time storm surge and wind as well as integrated storm surge and evacuation modeling for quick response to the uncertainty of hurricane forecasting.

关键词： storm surge modeling traffic evacuation Hurricane Irma

HTML PDF 收藏

Percolation-based health management of complex traffic systems

《工程管理前沿（英文）》 2021年第8卷第4期页码 557-571 doi: 10.1007/s42524-021-0174-0

摘要： System health management, which aims to ensure the safe and efficient operation of systems by reducing uncertain risks and cascading failures during their lifetime, is proposed for complex transportation systems and other critical infrastructures, especially under the background of the New Infrastructure Projects launched in China. Previous studies proposed numerous approaches to evaluate or improve traffic reliability or efficiency. Nevertheless, most existing studies neglected the core failure mechanism (i.e., spatio–temporal propagation of traffic congestion). In this article, we review existing studies on traffic reliability management and propose a health management framework covering the entire traffic congestion lifetime, from emergence, evolution to dissipation, based on the study of core failure modes with percolation theory. Aiming to be “reliable, invulnerable, resilient, potential, and active”, our proposed traffic health management framework includes modeling, evaluation, diagnosis, and improvement. Our proposed framework may shed light on traffic management for megacities and urban agglomerations around the world. This new approach may offer innovative insights for systems science and engineering in future intelligent infrastructure management.

关键词： traffic health health management critical infrastructure systems science and engineering

HTML PDF 收藏

Semantic Consistency and Correctness Verification of Digital Traffic Rules

Lei Wan,Changjun Wang,Daxin Luo,Hang Liu,Sha Ma,Weichao Hu,

《工程（英文）》 doi: 10.1016/j.eng.2023.04.016

摘要： The consensus of the automotive industry and traffic management authorities is that autonomous vehicles must follow the same traffic laws as human drivers. Using formal or digital methods, natural language traffic rules can be translated into machine language and used by autonomous vehicles. In this paper, a translation flow is designed. Beyond the translation, a deeper examination is required, because the semantics of natural languages are rich and complex, and frequently contain hidden assumptions. The issue of how to ensure that digital rules are accurate and consistent with the original intent of the traffic rules they represent is both significant and unresolved. In response, we propose a method of formal verification that combines equivalence verification with model checking. Reasonable and reassuring digital traffic rules can be obtained by utilizing the proposed traffic rule digitization flow and verification method. In addition, we offer a number of simulation applications that employ digital traffic rules to assess vehicle violations. The experimental findings indicate that our digital rules utilizing metric temporal logic (MTL) can be easily incorporated into simulation platforms and autonomous driving systems (ADS).

关键词： Autonomous driving Traffic rules Digitization Formalization Verification

HTML PDF 收藏

Fine-grained P2P traffic classification by simply counting flows

Jie HE,Yue-xiang YANG,Yong QIAO,Wen-ping DENG

《信息与电子工程前沿（英文）》 2015年第16卷第5期页码 391-403 doi: 10.1631/FITEE.1400267

摘要： The continuous emerging of peer-to-peer (P2P) applications enriches resource sharing by networks, but it also brings about many challenges to network management. Therefore, P2P applications monitoring, in particular, P2P traffic classification, is becoming increasingly important. In this paper, we propose a novel approach for accurate P2P traffic classification at a fine-grained level. Our approach relies only on counting some special flows that are appearing frequently and steadily in the traffic generated by specific P2P applications. In contrast to existing methods, the main contribution of our approach can be summarized as the following two aspects. Firstly, it can achieve a high classification accuracy by exploiting only several generic properties of flows rather than complicated features and sophisticated techniques. Secondly, it can work well even if the classification target is running with other high bandwidth-consuming applications, outperforming most existing host-based approaches, which are incapable of dealing with this situation. We evaluated the performance of our approach on a real-world trace. Experimental results show that P2P applications can be classified with a true positive rate higher than 97.22% and a false positive rate lower than 2.78%.

关键词： Traffic classification Peer-to-peer (P2P) Fine-grained Host-based

HTML PDF 收藏

Evaluating the short-term effect of ambient temperature on non-fatal outdoor falls and road traffic injuries

《环境科学与工程前沿（英文）》 2023年第17卷第9期 doi: 10.1007/s11783-023-1705-1

摘要：

● A study assessing the temperature-injury relationship was conducted among students.

关键词： Ambient temperature Fall Road traffic injury Student China

HTML PDF 收藏

Special issue: Management of road and railway traffic and transportation engineering

Yongfu SUN, Ziyou GAO

《工程管理前沿（英文）》 2017年第4卷第4期页码 385-387 doi: 10.15302/J-FEM-2017110

HTML PDF 收藏

Simulation model based on Monte Carlo method for traffic assignment in local area road network

Yuchuan DU, Yuanjing GENG, Lijun SUN

《结构与土木工程前沿（英文）》 2009年第3卷第2期页码 195-203 doi: 10.1007/s11709-009-0032-3

摘要： For a local area road network, the available traffic data of traveling are the flow volumes in the key intersections, not the complete OD matrix. Considering the circumstance characteristic and the data availability of a local area road network, a new model for traffic assignment based on Monte Carlo simulation of intersection turning movement is provided in this paper. For good stability in temporal sequence, turning ratio is adopted as the important parameter of this model. The formulation for local area road network assignment problems is proposed on the assumption of random turning behavior. The traffic assignment model based on the Monte Carlo method has been used in traffic analysis for an actual urban road network. The results comparing surveying traffic flow data and determining flow data by the previous model verify the applicability and validity of the proposed methodology.

关键词： traffic assignment local area road network turning ratio Monte Carlo method

HTML PDF 收藏

交通流诱导系统实时方法研究

崔建明,叶怀珍

《中国工程科学》 2008年第10卷第10期页码 64-66

摘要：

交通流的实时诱导系统多为建立在单位时间的信息重构，一旦在周期时间内事故发生，则造成行驶车辆正常诱导无法进行。通过对实际交通状况的分析，提出一个新的并且简单可行的解决方案。方案在原有系统中增加了对实时事件突发诱导系统的修正，减少系统应变时间。此方案是建立在现有的诱导基础之上的改进技术，可以在交通流诱导系统中大范围推广应用。

关键词：交通流诱导系统仿真突发事件实时诱导

HTML PDF 收藏

车路协同环境下的交通工程

王云鹏,鲁光泉,于海洋

《中国工程科学》 2018年第20卷第2期页码 106-110 doi: 10.15302/J-SSCAE-2018.02.016

摘要：

交通工程的产生与发展始终围绕着交通系统中的人车路耦合关系，来实现高效、安全、绿色的目标。载运工具智能化和车路/车车互联推动了车路协同技术的发展，将使交通系统逐渐从车路协调走向车路协同，并进一步提升交通系统的效能与安全。在车路协同环境下，传统交通系统中人为因素弱化，人车路耦合性增强，系统可控可测，随机性减弱，系统的感知、决策及控制主体逐渐从驾驶人转向机器，这给传统交通工程的基础理论方法带来了诸多变化与挑战。本文主要从人车路耦合的角度重点探讨车路协同系统对交通工程的影响，并提出未来发展过程中亟需解决的科学问题。

关键词：交通工程车路协同发展趋势

HTML PDF 收藏

基于世界模型与图像表示的交通信号控制 Research Article

戴星原1,2,赵宸1,2,王晓3,吕宜生1,2,林懿伦4,王飞跃1,2

《信息与电子工程前沿（英文）》 2022年第23卷第12期页码 1795-1813 doi: 10.1631/FITEE.2200323

摘要：交通信号控制正从被动控制过渡到主动控制，以引导当前交通流按预期状态运行。一个有效的预测模型对主动交通信号控制至关重要；其中预测什么交通状态，如何高精度预测，以及如何利用预测优化控制策略是主动交通信号控制研究的关键问题。本文使用车辆位置图像描述路口交通状态，同时受基于模型的强化学习方法DreamerV2的启发，引入基于学习的交通世界模型。该世界模型以图像序列描述交通动态，并作为交通环境的抽象替代以生成多步预测样本用于控制策略优化。在执行阶段，优化后的交通信号控制器根据交通状态的抽象表示直接实时输出控制指令，同时世界模型能够预测不同控制行为对未来交通状态的影响。实验结果表明，基于交通世界模型优化的控制策略的性能优于一般基准，并且世界模型实现了基于图像的高精度预测；这些结果显示了世界模型在未来交通信号控制中的应用前景。

关键词：交通信号控制；交通预测；交通世界模型；强化学习

HTML PDF 收藏

论电力牵引轨道交通的技术发展

刘友梅

《中国工程科学》 2000年第2卷第10期页码 51-55

摘要：

交通是社会经济运行的大动脉，轨道交通又一直是我国交通运输业的主体，而电力牵引已经成为轨道交通牵引动力的发展方向。文章从电力牵引轨道交通的技术优势出发，综述了国外电力牵引轨道交通的发展趋势和我国电力牵引轨道交通的发展历程，展望了我国电力牵引轨道交通的发展前景。

关键词：电力牵引轨道交通发展展望

HTML PDF 收藏

采用车载通信的自适应绿色交通信号控制 Article

Erfan SHAGHAGHI,Mohammad Reza JABBARPOUR,Rafidah MD NOOR,Hwasoo YEO,Jason J. JUNG

《信息与电子工程前沿（英文）》 2017年第18卷第3期页码 373-393 doi: 10.1631/FITEE.1500355

摘要：作为智能交通系统（intelligent transportation systems, ITSs）的一个组成部分，一种能够取代传统仪器为自适应交通信号控制系统（traffic signal controlling

关键词：车载局域网；智能交通系统；集群；自适应交通信号控制；交通控制器；燃料消耗量

HTML PDF 收藏

基于灰色模糊数的公交线网优化研究

邓卫,胡启洲

《中国工程科学》 2007年第9卷第11期页码 21-25

摘要：

在考虑信息不完全的情况下，用灰色模糊数对公交线网优化问题进行了研究。在给出了公交线网优化的约束条件与优化目标的基础上，利用灰色模糊数建立了公交线网优化的决策模型。灰色模糊数是用三参数区间参与优化过程，在允许参数在一定范围内变化的情况下，计算后得到的结果是一个区间向量，其中向量值最大的为所求结果，适用于城市公交线网的优化问题。实例应用分析表明，优化后的公交线网效率提高，可达性良好，可满足城市公交可持续发展的要求。

关键词：公交线网优化灰色模糊数