CAJ | 학술논문

为解决现有模糊智能控制方法仅适用于单交叉口非饱和状态,满足区域交通过饱和多交叉口信号协同联动控制的需要,提出了高峰时期主通道优化控制策略. 在粗糙集知识推理基础上,构建了以多交叉口状态信息为条件属性,以绿灯延长方式、绿灯延长相位和绿灯延长时间3个参数为决策属性的多决策属性模糊控制模型. 运用可辨识矩阵与属性频度的属性约简方法对模型进行约简,提取决策规则. 实例分析表明:多交叉口主通道绿灯时间延长3~8s能够有效提高区域交通整体通行效能,同时延长时间不仅与过饱和状态车辆最大排队长度有关,还与绿灯延长方式、绿灯延长相位存在关联,这与交警经验总结的控制规律一致.
위해결현유모호지능공제방법부괄용우단교차구비포화상태,만족구역교통과포화다교차구신호협동련동공제적수요,제출료고봉시기주통도우화공제책략. 재조조집지식추리기출상,구건료이다교차구상태신식위조건속성,이록등연장방식、록등연장상위화록등연장시간3개삼수위결책속성적다결책속성모호공제모형. 운용가변식구진여속성빈도적속성약간방법대모형진행약간,제취결책규칙. 실례분석표명:다교차구주통도록등시간연장3~8s능구유효제고구역교통정체통행효능,동시연장시간불부여과포화상태차량최대배대장도유관,환여록등연장방식、록등연장상위존재관련,저여교경경험총결적공제규률일치.
To solve the defect that the existing fuzzy intelligent control method is only suitable for a single intersec-tion under unsaturated state, and to meet the need of coordination control of regional traffic for oversaturated multi-ple intersections, an optimization control strategy for main channel at peak time was proposed. The fuzzy control model with multiple decision attributes was established on the basis of knowledge reasoning in rough sets theory. It took multiple intersections state information as condition attributes, and the elongation mode, phase, and green light timing, as decision attributes. The methods of attribute reduction of the discernibility matrix and the frequency of attribute were used in the model, then some decision rules were extracted. The results show that the efficiency of regional traffic was improved via 3-8 more seconds of green light signal at the main channel. In addition, the exten-sion time is not only related to the maximum queue length of vehicles under oversaturated vehicle conditions, but also the extension mode and phase of green light, which is consistent with the experience of traffic police.