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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

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Direct energy rebound effect for road transportation in China

《工程管理前沿（英文）》页码 597-611 doi: 10.1007/s42524-023-0276-y

摘要： The enhancement of energy efficiency stands as the principal avenue for attaining energy conservation and emissions reduction objectives within the realm of road transportation. Nevertheless, it is imperative to acknowledge that these objectives may, in part or in entirety, be offset by the phenomenon known as the energy rebound effect (ERE). To quantify the long-term EREs and short-term EREs specific to China’s road transportation, this study employed panel cointegration and panel error correction models, accounting for asymmetric price effects. The findings reveal the following: The long-term EREs observed in road passenger transportation and road freight transportation range from 13% to 25% and 14% to 48%, respectively; in contrast, the short-term EREs in road passenger transportation and road freight transportation span from 36% to 41% and 3.9% to 32%, respectively. It is noteworthy that the EREs associated with road passenger transportation and road freight transportation represent a partial rebound effect, falling short of reaching the magnitude of a counterproductive backfire effect. This leads to the inference that the upsurge in energy consumption within the road transportation sector cannot be solely attributed to advancements in energy efficiency. Instead, various factors, including income levels, the scale of commodity trade, and industrial structure, exert more substantial facilitating influences. Furthermore, the escalation of fuel prices fails to dampen the demand for energy services, whether in the domain of road passenger transportation or road freight transportation. In light of these conclusions, recommendations are proffered for the formulation of energy efficiency policies pertinent to road transportation.

关键词： road transportation direct energy rebound effect asymmetric price effects panel data model

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Enhancing the terrain adaptability of a multirobot cooperative transportation system via novel connectors

《机械工程前沿（英文）》 2023年第18卷第3期 doi: 10.1007/s11465-023-0754-2

摘要： Given limited terrain adaptability, most existing multirobot cooperative transportation systems (MRCTSs) mainly work on flat pavements, restricting their outdoor applications. The connectors’ finite deformation capability and the control strategies’ limitations are primarily responsible for this phenomenon. This study proposes a novel MRCTS based on tracked mobile robots (TMRs) to improve terrain adaptability and expand the application scenarios of MRCTSs. In structure design, we develop a novel 6-degree-of-freedom passive adaptive connector to link multiple TMRs and the transported object (the communal payload). In addition, the connector is set with sensors to measure the position and orientation of the robot with respect to the object for feedback control. In the control strategy, we present a virtual leader–physical follower collaborative paradigm. The leader robot is imaginary to describe the movement of the entire system and manage the follower robots. All the TMRs in the system act as follower robots to transport the object cooperatively. Having divided the whole control structure into the leader robot level and the follower robot level, we convert the motion control of the two kinds of robots to trajectory tracking control problems and propose a novel double closed-loop kinematics control framework. Furthermore, a control law satisfying saturation constraints is derived to ensure transportation stability. An adaptive control algorithm processes the wheelbase uncertainty of the TMR. Finally, we develop a prototype of the TMR-based MRCTS for experiments. In the trajectory tracking experiment, the developed MRCTS with the proposed control scheme can converge to the reference trajectory in the presence of initial tracking errors in a finite time. In the outdoor experiment, the proposed MRCTS consisting of four TMRs can successfully transport a payload weighing 60 kg on an uneven road with the single TMR’s maximum load limited to 15 kg. The experimental results demonstrate the effectiveness of the structural design and control strategies of the TMR-based MRCTS.

关键词： multirobot system cooperative transportation terrain adaptability trajectory tracking collaborative paradigm uneven road

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Connecting the Belt and Road through sea-rail collaboration

Chenhao ZHOU, Haobin LI, Wencheng WANG, Loo Hay LEE, Ek Peng CHEW

《工程管理前沿（英文）》 2017年第4卷第3期页码 315-324 doi: 10.15302/J-FEM-2017031

摘要： As part of China’s “the Belt and Road” strategy, China Railway Express provides alternative shipping routes and transportation modes from Asia to Europe and creates new opportunities for intermodal transportation in the shipping industry. A time–distance-based cost (time cost) function was proposed to compare China Railway Express with traditional transportation modes. Time cost was related to different types of cargoes, which exhibit distinct sensitivity to time. Using the proposed cost function as basis, we identified the cost indifference area where total costs are equal. Further analysis was performed for selecting the transportation mode and supply area for a specific cargo. This study provides various parties, such as business owners, the government, and the shipping industry, with many valuable insights.

关键词： China Railway Express the Belt and Road shipping industry combined transportation

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我国道路交通与能源融合发展战略研究

贾利民,师瑞峰,吉莉 ,武平

《中国工程科学》 2022年第24卷第3期页码 163-172 doi: 10.15302/J-SSCAE-2022.03.017

摘要：

能源与交通的交替进步承载了人类社会的繁衍发展与文明延续。面对资源紧缺、气候变化、环境污染带来的严峻挑战，利用交通资产能源化、交通用能绿色化途径可以有效实现交通领域“碳达峰、碳中和”目标已逐渐成为一种共识。本文系统回顾了道路交通能源融合的发展历史，调研并分析了源于国家能源安全、交通能源结构绿色化转型、交通资产能源化潜力开发，以及交通系统智能化等推动道路交通与清洁能源融合发展的需求与变化趋势。笔者在对我国道路交通风、光自然资源禀赋与用能需求自洽供给评估分析的基础上，给出了我国道路交通与能源融合发展的参考路径，并结合“碳达峰、碳中和”目标，提出了道路交通与能源融合发展的路线图。最后，提出了技术与政策两方面建议：在技术方面，建议强化科技研发、推进产业链发展，助力技术创新与融合；在政策方面，建议完善顶层设计与战略规划、支持探索市场新模式，进一步深化国际合作。

关键词：道路交通；交通能源融合；交通资产能源化；可再生清洁能源；碳达峰、碳中和；交通用能负荷

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城市虚拟交通系统与交通发展决策支持模式研究

王炜, 赵德,华雪东,周伟

《中国工程科学》 2021年第23卷第3期页码 163-172 doi: 10.15302/J-SSCAE-2021.03.020

摘要：

本土化的城市虚拟交通系统与交通发展决策支持模式，在解决由快速城镇化引发且趋于严重的城市交通问题、克服现阶段智能交通系统存在的瓶颈方面具有重要意义。本研究依托大数据、互联网等信息技术，建立了由基础数据库、分析模型库、软件模块库、备选预案库组成的城市虚拟交通系统，涵盖其理论框架、系统功能、技术体系，据此提出覆盖城市土地开发、交通设施建设、交通运行管控、公共交通运营、交通政策制定等应用场景的交通发展决策支持模式。以重庆市为例，阐述了城市虚拟交通系统构建过程，完成重庆市新型冠状病毒肺炎疫情期间居民出行、车辆通行错峰方案的政府决策论证。结果表明，基于城市虚拟交通系统的交通发展决策支持模式在实际交通方案论证过程中具有及时性和有效性。研究建议，未来我国城市交通规划管理可注重城市虚拟交通系统的建设和运用，及时纳入新型信息技术成果以优化应用效果。

关键词：城市交通系统道路网络交通分析模型虚拟交通系统决策支持模式

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Ancient road transport devices: Developments from the Bronze Age to the Roman Empire

Cesare ROSSI,Thomas G. CHONDROS,Kypros F. MILIDONIS,Sergio SAVINO,Flavio RUSSO

《机械工程前沿（英文）》 2016年第11卷第1期页码 12-25 doi: 10.1007/s11465-015-0358-6

摘要：

The development of transportation systems has significantly enhanced the welfare and modernization of society. Wooden vehicles pulled by animals have been used for land transportation since the early Bronze Age. Whole-body gharries with rigid wheels pulled by oxen appeared in Crete by 2000 BC or earlier. Horses originating from the East were depicted in early Cretan seal-rings of the same period. The two-wheeled horse-drawn chariot was one of the most important inventions in history. This vehicle provided humanity its first concept of personal transport and was the key technology of war for 2000 years. Chariots of Mycenaean and Archaic Greece with light and flexible four-spoked wheels acting as spring suspensions were depicted in vase paintings. The development of this vehicle incorporated the seeds of a primitive design activity and was important for engineering. The Trojan horse since 1194 BC and the helepolis since 700 BC were the first known machines on a wheeled base transported by horses or self-powered. Ancient engineers invented bearings lubricated with fat, and Romans introduced the ancestors of ball bearings for their wagons and carts. The historic evolution of wheeled transportation systems, along with early traction, suspension, and braking systems, is presented in this paper. Analytical and numerical methods are incorporated to analyze the most conceivable loading situations of typically reconstructed wheeled transportation systems in ancient times. Traction requirements both for horse-driven machines and the power for internal motors are also analyzed. This study can serve as a basis for further development of detailed reconstruction of transportation systems in antiquity.

关键词： transportation wheel spoke cart axle bearing

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基于虚拟节点道路网络模型的设计及实现

朱庄生,王庆,万德钧

《中国工程科学》 2009年第11卷第8期页码 83-87

摘要：

利用传统的基于节点连接的道路网络模型来表达真实世界中的道路网络，其存在的缺陷越来越突出，大大降低了导航系统的鲁棒性。为了消除这些缺陷，首次提出一个新的道路网络模型，即基于虚拟节点连接的道路网络模型，其虚拟节点是汇交路段的各个端点所围成的区域，具有真实道路路口的形状，与传统模型相比，该模型更能表达真实世界道路网络中的交通流，所以它能更好地满足地图匹配理论要求。另外，该模型能很好的表达真实道路路口参数，所以它在交通规划，交通管理和交通流模拟中都有着十分广阔的应用前景。

关键词：交通工程虚拟节点道路网络模型地图匹配交通规划

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节地节投资节油70%彻底不堵车城市新模式

董国良

《中国工程科学》 2006年第8卷第1期页码 11-17

摘要：

提出了“城市基因改造论”和“畅通城市新模式”。目前城市“有机体”中存在着致病基因——“空间错位”，正是这一致病基因，导致产生了影响城市可持续发展的十大问题：城市占地多、效率低、能耗高、污染重、停车难、治安差、不宜居，以及交通事故多、交通投资巨大等。城市交通问题应该从“城市交通-城市空间-经济-社会”四个层次综合研究，“跳出交通看交通”，铲除“空间错位”这个基因，才能一揽子解决城市交通和城市可持续发展的诸多问题。通过分别构筑车与人的空间，将一个混乱的城市空间变为两个自由空间，从而构建“畅通城市新模式”，既可实现《雅典宪章》所提出的寻找新的街道系统以适应汽车交通特性^［1］，又可实现建设“以人为本”节约宜人型城市的新目标。

关键词：城市交通可持续发展

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高精度道路导航地图的进展与思考

刘经南,吴杭彬,郭迟,张宏敏,左文炜,羊铖

《中国工程科学》 2018年第20卷第2期页码 99-105 doi: 10.15302/J-SSCAE-2018.02.015

摘要：

随着互联网时代的高速发展，更多基于位置的新型行业逐步发展起来，例如“互联网+”智能交通、无人系统等，但这些行业的发展都需要高精度的位置数据作为支撑，而传统导航地图5 m的精度无法满足需求，因此高精度道路导航地图概念被提出。高精度道路导航地图具有更加丰富细致的道路信息，可以更加精准地反映道路的真实情况。与传统地图相比，它的图层数量更多，图层内容更加精细，具有新的地图结构划分。正是因为高精度道路导航地图丰富的信息含量，使得它具有庞大的数据量，而传统的集中式大数据处理模式无法满足它的计算需求。因此，本文提出 “众包+边缘计算”的大数据处理模式来解决高精度道路导航地图的计算问题。目前，高精度道路导航地图已进入高速发展状态，但发展过程中仍面临着一些需要解决的问题。

关键词：高精度道路导航地图 “互联网+”智能交通无人系统众包边缘计算

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危险品运输选线的定量风险评价模型

任常兴,吴宗之,刘茂

《中国工程科学》 2007年第9卷第8期页码 72-76

摘要：

定量化风险评价是危险品道路运输选线的重要决策依据，但在如何定量其风险方面往往存在分歧。系统地总结了常见的危险品运输定量风险评价模型，将其划分为传统风险评价模型及其特例、感知风险模型、条件风险模型、侧重后果的避灾风险模型以及改进后的传统风险模型5类，分析了风险评价模型的性质和原则，对将来的研究发展提出了建议。

关键词：危险品选线定量风险评价道路运输

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Sustainable urban transportation development in China: A behavioral perspective

《工程管理前沿（英文）》 2022年第9卷第1期页码 16-30 doi: 10.1007/s42524-021-0162-4

摘要： The rapid development of economics requires highly efficient and environment-friendly urban transportation systems. Such requirement presents challenges in sustainable urban transportation. The analysis and understanding of transportation-related behaviors provide one approach to dealing with complicated transportation activities. In this study, the management of traffic systems is divided into four levels with a structural and systematic perspective. Then, several special cases from the perspective of behavior, including purchasing behaviors toward new energy vehicles, choice behaviors toward green travel, and behavioral reactions toward transportation demand management policies, are investigated. Several management suggestions are proposed for transportation authorities to improve sustainable traffic management.

关键词： sustainable urban transportation transportation behaviors

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Future urban transport management

《工程管理前沿（英文）》页码 534-539 doi: 10.1007/s42524-023-0255-3

摘要： The incorporation of disruptive innovations into the transportation industry will inevitably cause major upheavals in the transportation sector. However, existing research lacks systematic theories and methodologies to represent the underlying characteristics of future urban transport systems. Furthermore, emerging modes in urban mobility have not been sufficiently studied. The National Natural Science Foundation of China (NSFC) officially approved the Basic Science Center project titled “Future Urban Transport Management” in 2022. The project members include leading scientists and engineers from Beijing Jiaotong University, Beihang University, and Beijing Transport Institute. Based on a wide range of previous projects by the consortium on urban mobility and sustainable cities, this project will encompass transdisciplinary and interdisciplinary research to explore critical issues affecting future urban traffic management. It aims to develop fundamental theories and methods based on social and technological developments in the near future and explores innovative solutions to implement alongside these emerging developments in urban mobility.

关键词： future urban transport management travel behavior characteristics transportation operations transportation emergency management transportation decision intelligence

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Characteristics and application of road absorbing solar energy

Zhihua ZHOU, Shan HU, Xiaoyan ZHANG, Jian ZUO

《能源前沿（英文）》 2013年第7卷第4期页码 525-534 doi: 10.1007/s11708-013-0278-2

摘要： If the heat of road surface can be stored in summer, the road surface temperature will be decreased to prevent permanent deformation of pavement. Besides, if the heat stored is released, it can supply heat for buildings or raise the road surface temperature for snow melting in winter. A road-solar energy system was built in this study, and the heat transfer mechanism and effect of the system were analyzed according to the monitored solar radiant heat, the solar energy absorbed by road and the heat stored by soil. The results showed that the road surface temperature was mainly affected by solar radiation, but the effect is hysteretic in nature. The temperature of the solar road surface was 3°C–6°C lower than that of the ordinary road surface. The temperature of the solar road along the vertical direction was 2°C–5°C lower than that of the ordinary road. The temperature difference increased as the distance to the heat transfer tubes decreased. The average solar collector efficiency of the system was 14.4%, and the average solar absorptivity of road surface was 36%.

关键词： solar energy road-solar energy system road surface temperature solar absorptivity of road surface solar collector efficiency of system

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Development and road performance of clear asphalt with high transparency and adhesion

《结构与土木工程前沿（英文）》 2023年第17卷第2期页码 238-255 doi: 10.1007/s11709-022-0898-x

摘要： Clear asphalt (CA) currently used in light-colored asphalt mixtures (LCAM) exhibits poor transparency and adhesion. Therefore, a highly transparent CA (HCA) modified using a silane coupling agent (KH550) was prepared. Furthermore, LCAM was prepared by mixing CA and limestone aggregates. The properties of the HCA and ordinary CA (OCA) were characterized using conventional asphalt tests, optical tests, pull-off tests, ultraviolet aging tests, dynamic shear rheometry, Fourier-transform infrared spectroscopy, differential scanning calorimetry, and scanning electron microscopy. Whereas Marshall, moisture resistance, wheel tracking, trabecular bending, and British pendulum tests were employed for the LCAM. The transmittance and spectral reflectance of the HCA were 123.30 and 3.74 times greater than those of the OCA, respectively. The complex modulus and viscosity-aging index of the HCA were 48% and 53% less than those of the OCA, respectively. After modification with KH550, the Marshall stability ratio, tensile strength ratio, and flexural strain of the HCA-prepared LCAM increased by 12.92%, 25.06%, and 23.90%, respectively. However, the rutting resistance of the HCA-prepared LCAM was 14.3% less than that of the OCA-prepared LCAM. The comprehensive performances of the HCA and HCA-prepared LCAM were 49.2% and 10.3% greater than those of the OCA and OCA-prepared LCAM, respectively, indicating a high application value in the future.

关键词： light-colored asphalt pavement orthogonal test road performance spectral reflectance silane-coupling agent