LED主动发光交通标志视认性试验研究

发布时间：2019-06-10 14:40

【摘要】：在技术快速发展,道路网密集度不断增加,社会服务高质要求的今天,道路交通安全成了各界人士重点关注的对象,交通界学者也一直奔赴在交通安全研究工作的前线,为提高其服务水平不懈努力。然而,如今的道路交通安全问题大多处于“先问题后方案”的模式,运营中的道路还存在许多尚待发现的安全隐患,严重威胁着道路使用者的人身财产安全。对于作为道路安全设施重要组成部分的道路交通标志,反光膜标志在低能见度条件下的低视认性带来滥用远光灯的问题也极易引发交通事故,在如此严峻的事态下,发展具较优视认性的LED主动发光交通标志刻不容缓。但如今国内外对LED主动发光交通标志视认性的相关研究成果还较少,相应技术指标的研究数据尚欠缺,这些都成了该类标志推广与普及的阻碍。本论文以太原市中环路主路试设的LED主动发光指路标志及同规格的反光膜标志为研究对象,凭借徕卡S910手持激光测距仪,分别在昼夜条件下展开驾驶员对交通标志视认性的试验研究。然后通过有效试验数据的处理研究,结合邓氏灰色关联模型,分析各因素对驾驶员视认交通标志的影响情况及各因素影响性的关联度大小,并根据价值工程理论、经济性评价指标及方法,借助实例,对LED主动发光交通标志的经济性进行评价与分析。结果表明:驾驶员自身特性及环境条件与驾驶员认读标志信息的效率有着密切关系;LED主动发光交通标志在白天和夜间时的视认性差异甚微,但其在夜间的视认性明显优于反光膜标志;LED主动发光交通标志所创造的价值要远大于其成本,经济效益优越,值得进一步的研究与探讨。本论文的研究成果能有效降低道路交通安全事故率,具有一定的发展与推广价值,还能为今后在这方面的研究提供相应的理论依据,具有一定的参考价值。
[Abstract]:With the rapid development of technology, the increasing density of road network and the high quality requirements of social services, road traffic safety has become the focus of attention of people from all walks of life, and scholars in the traffic sector have also been on the front line of traffic safety research. Make unremitting efforts to improve its service level. However, most of the road traffic safety problems are in the mode of "first problem and then plan". There are still many hidden dangers to be found in the operation of the road, which seriously threatens the personal and property safety of the road users. For road traffic signs, which are an important part of road safety facilities, the low visual recognition of reflective film signs under the condition of low visibility can also easily lead to traffic accidents. Under such a serious situation, It is urgent to develop LED active luminous traffic signs with better visual recognition. However, there are few research results on the visualization of LED active luminous traffic signs at home and abroad, and the research data of the corresponding technical indicators are still lacking, which have become an obstacle to the promotion and popularization of this kind of signs. In this paper, the LED active luminous guide sign and the reflective film mark of the same specification are tested on the main road of Taiyuan Central Ring Road as the research object, with Leica S910 handheld laser rangefinder. The experimental study on the driver's perception of traffic signs was carried out under the condition of day and night. Then, through the processing of effective test data, combined with Deng's grey correlation model, this paper analyzes the influence of each factor on the driver's perceived traffic sign and the correlation degree of each factor's influence, and according to the value engineering theory, The economic evaluation index and method are used to evaluate and analyze the economy of LED active luminous traffic signs with the help of an example. The results show that the driver's own characteristics and environmental conditions are closely related to the efficiency of driver reading sign information. There is little difference in the visual recognition of LED active luminous traffic signs between day and night, but its visual recognition at night is obviously better than that of reflective film signs. The value created by LED active luminous traffic signs is much greater than its cost, and its economic benefit is superior, which is worthy of further study and discussion. The research results of this paper can effectively reduce the accident rate of road traffic safety, have certain development and promotion value, but also provide the corresponding theoretical basis for future research in this field, and have certain reference value.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491.52

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