半自动闭塞事故问题探讨

介绍了包兰线青铜峡至青分区间半自动闭塞故障的发生及处理过程,分析了引发这起事故的原因和导因,总结提出了相关的故障处理经验及安全预防措施。     

浅谈交通事故中的紧急救援体系

我国目前交通事故的死亡率、致残率居高不下,很大的一个原因是紧急救援体系还很不完善.建立和健全紧急救援体系,使事故救援走上规范化、程序化的道路,可大大减少事故的死亡率和致残率,对于提高道路交通安全水平具有很重要的意义.     

宁波港海域船舶突发性溢油风险估算及防治对策

根据宁波海事局对近几年进出宁波港船舶的统计资料，运用概率论和数理统计及环境风险分析的有关知识，对宁波港海域未来几年中船舶发生突发性溢油事故的概率作了估算，然后提出加强宁波港船舶突发性溢油的防治对策。     

Accident severity analysis using ordered probit model

To reduce injuries in road crashes, better understanding is needed between the relationship of injury severity and risk factors. This study seeks to identify the contributing factors affecting crash severity with broad considerations of driver characteristics, roadway features, vehicle types, pedestrian characteristics and crash characteristics using an ordered probit model. It also explores how the interaction of these factors will affect accident severity risk. Three types of accidents were investigated: two-vehicle crashes, single vehicle crashes and pedestrian accidents. The reported crash data in Singapore from 1992 to 2001 were used to illustrate the process of parameter estimation. Several factors such as vehicle type, road type, collision type, location type, pedestrian age, time of day of accident occurrence were found to be significantly associated with injury severity. It was also found that injury severity decreases over time for the three types of accident investigated.     

浅析车用柴油发动机四种常见故障诊断

笔者在几年的管理与实践中对车用柴油机的故障诊断进行探讨、研究，总结归纳出四种常见故障现象：异响噪声、起动困难，油路堵塞、周期性游车，分析引起这些故障的原因。介绍这些故障的诊断和排除方法。     

人为失误与船舶引航事故的预防

船舶引航事故中的主要原因是人为失误,在分析该原因及其相关的失误链与事件链和不同种类失误的基础上,全面认识人为因素与引航事故的关系,注意调节引航员生理与心理状态和及时识别并破断引航中的失误链与事故链的角度,就预防船舶引航事故的发生进行了论述,并提出了一些设想与建议。     

A line-based skid mark segmentation system using image-processing methods

We developed a line-based skid mark segmentation and measurement system to solve issues related to randomness from pavement texture and measurement subjectivity at car accident scenes. The system was designed to operate along the longer straight lines that exist in boundaries between skid marks and pavement at the scene of an accident. The operational system consists of two processes: preprocessing and feature extraction. Preprocessing steps include skid mark positioning, slope angle detection, and segmentation, whereas feature extraction involves detecting light striations, striation segmentation, and calculating the widths of striations from images. Experimental validation and objective measurements illustrate that this system saves operation time and cost while performing with accuracy similar to that of manual methods.     

公路隧道运营期风险定量分析模型研究

文章借鉴风险评估理论,建立了一套适用于公路隧道运营期风险分析的定量风险分析模型,对隧道事故场景、发生概率、后果等进行评估。同时建立了事故疏散模型和FED人员逃生条件模型,为公路隧道运营期风险分析提供了方法依据。     

低速新能源电动轿车充电插座盖的研究与应用

文章主要介绍一种新的低速新能源电动轿车充电插座盖结构,摒弃现有充电插座盖的一些缺点打开时占用空间大,在停车狭窄的空间内无法打开;车辆在行驶过程中,因道路颠簸晃动而造成的充电盖间隙增大,密封性能差,雨水及其它液体容易进入充电插座,从而导致充电机损坏或出现漏电安全事故,通过本研究,在技术层面和部件结构上克服并解决了上述问题。