Young drivers and graduated licensing: The Ontario case

Despite improvements in road safety over the past several decades, accident rates remain high for young drivers. One accident countermeasure that is expected to improve the safety record of this group is graduated licensing. The philosophy behind this licensing system is that novice drivers, of whom the majority are young, should be restricted to relatively safe driving environments during the initial learning period. Graduated licensing was implemented in the Province of Ontario, Canada in 1994. The objective of this study is to estimate the potential benefits and costs for young drivers associated with two components of the Ontario graduated licensing package: the late-night driving curfew and the high-speed roadway restrictions. Based on accident and travel data for the year 1988, accident-involvement rates per kilometre driven were calculated for different driver groups for various combinations of time of day and roadway speed limit. These rates were then applied to the expected mobility profiles of young drivers affected by graduated licensing. The results of the study support the late-night curfew and suggest that this component of the licensing package should reduce total accident involvements for the affected group by up to 10 percent and fatal accident involvements by up to 24 percent, while reducing their total driving by only four percent. By contrast, the empirical evidence suggest that the high-speed roadway restrictions are likely to increase accident involvements, and thus it is strongly recommended that this component of Ontario's graduated licensing package be changed.     

Windows CE流接口驱动程序设计方法

开发嵌入式操作系统的设备驱动程序是应用嵌入式技术的重要基础。流接口驱动程序是Windows CE基本的驱动程序，是很多驱动程序的基础。分析Windows CE流接口驱动程序的基本结构，探讨流接口驱动程序的功能定义，认为流接口驱动程序应当能为应用程序提供查询输入和事件输入等两种输入方式，给出中断程序设计、I/O缓冲区设计的注意事项，总结一般的流接口驱动程序设计开发方法。     

论我国公路客运与客车的发展

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浅析南京地铁1号线与2号线列车网络

南京地铁1号线的列车总线采用的是FIP协议,并以此构建了列车信息监控系统（TIMS）。而2号线列车以MVB技术为基础构建了全新的列车控制网络（TCMS）。在1号线FIP的基础上,介绍了使用在2号线列车MVB总线的物理层、帧及其时序。     

基于SJA1000的CAN总线通信系统的设计

介绍CAN总线主要技术特性,简述基于SJA1000的CAN总线接口电路的软、硬件设计方法,给出CAN总线接口电路、SJA1000初始化程序、接收及发送数据的程序框图,满足CAN通信的各项要求。     

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针对汽车电子控制系统和车载多媒体系统，探讨了汽车总线系统通信协议的技术特点和发展趋势。在对各类汽车总线进行比较和探讨的基础上，对其应用现状进行了分析。综合汽车工业特点对汽车总线协议的统一问题作了探讨。     

我国道路客运业的现状及发展对客车制造业的影响

本文对我国道路客运业的现状和特点进行了分析介绍,指出道路客运业向集约化、规模化发展,客运经营主体的资质、经营管理水平等需要进一步的提高。道路客运业的发展对客车制造企业提出了更多要求,但二者又是相互融合、共同发展的。     

整体式与分体式工艺在前后围的应用对比

文章介绍了整体式玻璃钢前、后围及分体式玻璃钢前、后围工艺在客车上的应用,详述了采用整体式工艺和分体式工艺的不同制作过程及它们之间的优缺点。     

客车主要噪声源识别的试验研究

基于偏奇异值分析法识别噪声源的基本原理，采用了近场声压测量法，同步采集15个传感器的振动与声压信号，识别出客车车外噪声的主要噪声源，分析出各噪声源对车外噪声的贡献并做出降低车外噪声的预测分析。所采用的试验与分析方法具有计算量小、声源定位准确的特点，并且可以准确预测零部件的改进对车外噪声的影响。试验研究和实车应用表明，这种方法可以适用于复杂的工程实际。