Traffic risk behavior and perceptions of Thai motorcyclists: A case study

This study aimed to investigate Thai motorcyclists' traffic risk behavior and their perceptions of it, information of value in the design and implementation of public health policies and campaigns for the reduction of road injuries. Data was collected by a self-administered questionnaire completed by 399 motorcyclists in Muang Krabi district, Krabi province, Thailand. The questionnaire focused on the respondents' perceptions of general traffic risks and the specific risks at 3 identified hazardous sites. The results of the survey indicated that the correct fastening of helmet straps had a relationship with responsible traffic risk perceptions.     

京津冀一体化轨道交通协调发展研究和展望

京津冀协同发展上升为国家战略,需要区域轨道交通协调发展来支撑和服务于区域一体化发展。从京津冀协同发展空间布局及产业转移的角度出发,提出各种轨道交通的层次及服务功能,在此基础上对轨道交通协调发展研究提出应抓住规划,处理好既有轨道交通与新增轨道交通、客货运主要通道与交通引导(TOD)、各种轨道交通间协调衔接等方面关系;加快投融资改革,实施同步建设;创新体制,实现管理协调发展;加大政策扶持,达到轨道交通可持续发展等方面进行研究,同时对区域轨道交通进行展望,对京津冀一体化轨道交通协调发展研究方向、研究领域和空间进行了浅议。     

基于视频图像的车辆灯光状态鉴定方法研究

违法使用车辆远光灯是导致夜间道路交通事故的重要原因之一,针对当前道路交通事故中车辆灯光状态鉴定方法存在的不足,本文基于视频图像,从车载监控视频和道路监控视频两个角度分析视频图像中目标车辆前照灯光斑特征、目标车辆前照灯灯光在道路环境参照物上的投影光斑特征等信息,比对分析视频图像中远光灯、近光灯反馈信息的异同点,总结基于视频图像的车辆灯光状态鉴定方法,为道路交通事故处理过程中充分应用视频物证提供技术保障。     

阿拉山口口岸站货运安全问题的分析及对策

针对阿拉山口站货运作业中存在散堆装货物超载、成件小包装货物超载、集装箱偏载等问题,提出严格执行作业流程,约束和规范装载机械司机的操作行为,消除监控盲区,建立抽检制度、建立超偏载检测装置故障停用应急机制,建立装车前对货件标重检斤的制度,约束国外发货人的行为,保证货物装箱质量等保障货物运输安全的对策。     

关于山区水域船舶风灾事故的防范

山区水域气候多变且易发突风，对内河小型船舶安全构成严重的威胁。笔者通过对几起船舶风灾事故成因进行分析，就如何提高船舶抗突风能力，增加船舶倾覆不沉能力提出了见解。     

An analysis of alcohol and drug intake in forensic autopsy cases of traffic fatalities

The numbers of traffic accidents and its associated mortalities are decreasing every year in Japan. However, there continue to be cases of deaths and injuries caused by malicious driving including drunk driving. The forensic autopsy of traffic accident victims is important to determine the cause of death as well as the responsibility of traffic accidents. In this study, we investigated the cases of forensic autopsies related to traffic accidents, reported between 2013 and 2017, at the Department of Legal Medicine of Tokyo Women's Medical University. In this period, 22 autopsies were performed for traffic accidents; however, only 6 of them were associated with alcohol consumption. Most traffic accidents occurred during the night, and in one case, the victim was found lying on the road. Furthermore, there were 4 cases in which drugs in the blood or urine of the victim were detected; however, the actual relationship with the cause of death and traffic accident was not identified. It was also found necessary to take measures against pedestrian drinking. Moreover, only a few drugs led to a decrease in driving ability, highlighting the necessity of further data is necessary to provide insights into the type of drug consumed and the cause of accident.     

近期典型桥梁事故回顾、分析与启示

对1813~2018年期间的584起桥梁事故进行分析，将桥梁倒塌原因分为施工、自然灾害、设计、意外荷载、耐久性等5类。各原因在倒塌事故中所占比例分别为42.1%、30.0%、11.6%、12.7%、3.6%。除自然灾害外，设计施工不合理为主要原因，而事故发生大多是多种原因综合的结果。以近几年9起典型桥梁倒塌事故为例，分析比较各种倒塌桥梁的主要破坏模式，得到以下启示：①国内大部分梁桥上部结构的平面外位移约束构造不足，在任何一个平面内都不应该是可变体系是国内桥梁设计施工中需要注意的问题；②在应用新工艺、新结构和拆除旧桥时，应加强各种施工工况下的验算；③建议加强桥梁巡查，预防和禁止汽车超载以及桥梁附近大规模堆载；④应注重桥梁结构尤其是斜拉桥和悬索桥等特大桥梁的日常养护管理，当养护力量不足时，尽量选择养护要求较低的桥型。     

Fuzzy-logic-based incident detection for signalized diamond interchanges

This paper documents a fuzzy-logic-based incident detection algorithm for signalized urban diamond interchanges. The model is capable of detecting lane-blocking incidents whose effects are manifested by patterns of deterioration in traffic conditions that require adjustments in signal control strategies. As a component of a real-time traffic adaptive control system for signalized diamond interchanges, the algorithm feeds an incident report (i.e., the time, location, and severity of the incident) to the system's optimization manager, which uses that information to determine the appropriate signal control strategy.The performance of the model was studied using a simulation of an actual diamond interchange. The simulation study evaluated the model's performance in terms of detection rate, false alarm rate, and mean time to detect. The model's performance was encouraging, and the fuzzy-logic-based approach is considered promising.     

GSM-R中FAS话务量计算

介绍了GSM-R系统的结构,FAS系统及子系统在整个网络中的位置以及系统话务量的计算方法.分别按不同站型计算各站话务量,以此来确定网络的组网方式.     

基于混沌理论的高速公路网短时交通流量预测研究

随着高速公路网的建成及其交通流量的不断增大,对高速路网交通流实时控制和诱导服务的需求日益突出,而高速公路网短时交通流量的预测,不仅是交通流实时控制和诱导服务的基础和依据,而且预测结果的准确性对改善高速公路网的通行能力和服务水平有重要影响。基于混沌时间序列分析和预测的理论,建立了高速公路网短时交通流预测模型,计算给定区域高速公路网多断面短时交通流量预测值,结果表明利用多维混沌时间序列法预测高速公路网短时交通流量可行且具有较高的精度。