Seatbelt use among drivers in an urban city in Nigeria: an observational study

Studies from parts of Nigeria reported low compliance with seatbelt. This study sought to establish driver seatbelt use in Enugu, Nigeria by gender, vehicle type/use and time of day. Observations were done day and night at randomly selected locations. Data were analysed with SPSS version 15. Differences in response were checked with chi-square for trend. Confidence interval was 95% and P value < 0.05 was regarded as significant. Average compliance was 37.6% for the 510 males (85%) and 90 females (15%) observed. It was 74.8% in the day and 0.3% at night. Among males, 218 (42.7%) wore seatbelt while 9 (10%) females did. For commercial drivers 159 (65.2%) complied while 68 (19.1%) private drivers did. Truck drivers had 100% compliance while sports utility vehicle drivers had the lowest (18.8%). There is poor seatbelt compliance in Enugu, Nigeria and need for educational campaigns and stricter enforcement.     

Good practices on cost – effective road infrastructure safety investments

The paper presents the findings of a research project aiming to quantify and subsequently classify several infrastructure-related road safety measures, based on the international experience attained through extensive and selected literature review and additionally on a full consultation process including questionnaire surveys addressed to experts and relevant workshops. Initially, a review of selected research reports was carried out and an exhaustive list of road safety infrastructure investments covering all types of infrastructure was compiled. Individual investments were classified according to the infrastructure investment area and the type of investment and were thereafter analysed on the basis of key safety components. These investments were subsequently ranked in relation to their safety effects and implementation costs and on the basis of this ranking, a set of five most promising investments was selected for an in-depth analysis. The results suggest that the overall cost effectiveness of a road safety infrastructure investment is not always in direct correlation with the safety effect and is recommended that cost–benefit ratios and safety effects are always examined in conjunction with each other in order to identify the optimum solution for a specific road safety problem in specific conditions and with specific objectives.     

浅析公路经营企业与现代企业制度

近年来,公路经营企业发展对于我国收费公路快速发展起了非常重要的作用。本文对公路经营企业特点及面临困境进行了简要分析,并结合现代企业制度,给出了现代企业制度求解,这对于公路经营企业的进一步发展具有重要意义。     

探讨无人值守自动发卡机在高速公路收费站的应用

目前,我国高速公路网络发展迅速,给人们带来交通便利的同时,也产生了许多问题。如何提高对高速公路各路段的综合管理水平,充分发挥路网中各高速公路之间快捷、畅通的通行优势,最大限度地降低人为干扰因素,已成为摆在高速公路管理者面前的一项新的研究课题。为此,尽快实现联网收费成为交通管理部门的重要工作目标之一。文章从工程应用的角度,对当前高速公路收费站应用无人值守自动发卡机工作流程的特点和通信过程中可能遇到的问题进行详细分析。     

浅析路桥施工过程产生的问题及其处理方案

文章针对路桥施工过程产生的预应力技术问题、体外加固问题、防水层质量问题等几个典型问题及其处理方案进行了分析和探究。     

论路基路面施工质量通病及控制措施

公路工程质量问题成为一个焦点问题,为切实控制好路基分层施工,对填方路基必须按路面平行线分层控制填土标高;为切实控制路基压实度,必须按试验路路基填土厚度的90%控制规模施工时的填土厚度。     

城市道路景观设计的几点意见

城市道路的景观设计既是城市的特色也是交通安全的重要影响因素,本文通过介绍山水东路以及金石南路两条道路的景观设计,就城市道路的交通组成研究了对景观设计的要求,城市道路景观对交通的影响,提出了城市道路景观设计与交通协调的内容与方法。结果表明,城市道路的景观设计能调节道路使用者的心理状态,对改善交通状况、减少交通事故的发生有重要作用。     

一种分层A~*路径搜索算法及性能

基于层次道路网提出了一种分层A*路径搜索算法,其特点是在同一层路网中采用A*算法,而在层次切换时采用一种启发式定向搜索入口节点的方法。既顾及了道路等级性和朝着目标行进等驾驶员的心理因素,又可以获得比传统算法更快的求解速度。实验表明,该算法是可行的、高效的。     

论财经专业研究生学位论文的选题

选题是指一定时代的科学认识主体在所处时代知识背景下所提出的科学认识和科学实践中需要解决而又未能解决或未能很好解决但通过努力可以解决的问题。选题的战略地位体现于四个方面:选题的价值决定研究成果的价值、选题的重要性决定研究成果的重要性、选题的高度决定科研成果创新的高度、选题的成败决定科研工作的成败。选题的原则主要有两条:理论价值与现实意义、研究者的心得体会。选题的来源有四个:从社会需求中寻找选题,从理论与实践之间的矛盾中析出选题,从理论内部的矛盾中推导选题,从实践内部的矛盾中挖掘选题。选题的艺术主要在于"大处着眼,小处着手"。