| Dynamic induction and speed limit sign(dynamic sign)is important equipment offreeway, the freeway under the adverse circumstances, the scientific and reasonable controlof it can ensure the safety of freeway traffic, improve the road capacity. At present, theconfiguration of dynamic sign is relatively few on the freeway in our country, and in theconfiguration without explicit reference standard, which are result the allocation is not clear.The dynamic sign can not play its role fully, which is not only delays the efficiency of roadtraffic, but also results the waste of national resources. Therefore, how to configure dynamicscientific and reasonable mark to its full role in the induction and control is a seriousproblem.Based on the analysis of current research on the sign for the dynamic configuration ofthe system to do research, this paper do lots of research on configuration of dynamicsign,the paper first analyzes the attribute of regional freeway network for road section, andcarries on the research of fuzzy classification and quantization, using Analytical HierarchyProcess in the road network selection important sections need to configure dynamic sign;then according to the selected section, analysis special region in the section, selects theappropriate region in the section to configure, and spaces dynamic sign clearly by using themethod of software simulation; Finally, establishes perception of the driver and reactsdynamic mathematical model, at the same time looks up the relevant technical standardsand requirements of national configuration dynamic sign, solves the front distance ofdynamic sign. At the end of the paper clarifies the combining configuration of otherequipment and dynamic sign.This paper analysis and determine the configuration section, configuration area andconfiguration point for the dynamic sign on regional freeway network and formed from themacro to the concept, from concept to micro about the configuration of dynamic signs onfreeway network. |
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