交通运输系统工程与信息
交通運輸繫統工程與信息
교통운수계통공정여신식
JOURNAL OF COMMUNICATION AND TRANSPORTATION SYSTEMS ENGINEERING AND INFORMATION
2008年
1期
61-67
,共7页
高速公路交通事件管理%仿真%延误%路径变更%信号配时
高速公路交通事件管理%倣真%延誤%路徑變更%信號配時
고속공로교통사건관리%방진%연오%로경변경%신호배시
freeway incident management%simulation%delay%diversion routes%signal timing
基于CORSIM仿真方法评价美国佛罗里达州萨拉索塔市1-75州际高速公路及其备用线路上交通事件管理和信号配时变更对交通运行状况的影响.在萨拉索塔市的备用线路上建立全市范围的信号配时方案,当1-75高速公路上发生交通事件时,引导和指示车辆从适当的地点离开并返回高速公路.利用SYNCHRO信号配时软件建立6种交通事件情况下的信号配时方案.根据萨拉索塔市SYNCHRO数据,产生CORSIM数据集以评价路径变更方案的效果.通过CORSIM分析结果显示,从交通运行状况上看,萨拉索塔市的路径变更方案十分有效,使路网整体延误平均降低21%.另外,对其中一种交通事件情况下,转移的交通流量大小对交通运行状况的影响进行敏感性分析.结果表明,转移的交通量大小对于整个路网延误有显著影响.在本文的实例分析中,转移10%的交通量对整个路网的延误最小.
基于CORSIM倣真方法評價美國彿囉裏達州薩拉索塔市1-75州際高速公路及其備用線路上交通事件管理和信號配時變更對交通運行狀況的影響.在薩拉索塔市的備用線路上建立全市範圍的信號配時方案,噹1-75高速公路上髮生交通事件時,引導和指示車輛從適噹的地點離開併返迴高速公路.利用SYNCHRO信號配時軟件建立6種交通事件情況下的信號配時方案.根據薩拉索塔市SYNCHRO數據,產生CORSIM數據集以評價路徑變更方案的效果.通過CORSIM分析結果顯示,從交通運行狀況上看,薩拉索塔市的路徑變更方案十分有效,使路網整體延誤平均降低21%.另外,對其中一種交通事件情況下,轉移的交通流量大小對交通運行狀況的影響進行敏感性分析.結果錶明,轉移的交通量大小對于整箇路網延誤有顯著影響.在本文的實例分析中,轉移10%的交通量對整箇路網的延誤最小.
기우CORSIM방진방법평개미국불라리체주살랍색탑시1-75주제고속공로급기비용선로상교통사건관리화신호배시변경대교통운행상황적영향.재살랍색탑시적비용선로상건립전시범위적신호배시방안,당1-75고속공로상발생교통사건시,인도화지시차량종괄당적지점리개병반회고속공로.이용SYNCHRO신호배시연건건립6충교통사건정황하적신호배시방안.근거살랍색탑시SYNCHRO수거,산생CORSIM수거집이평개로경변경방안적효과.통과CORSIM분석결과현시,종교통운행상황상간,살랍색탑시적로경변경방안십분유효,사로망정체연오평균강저21%.령외,대기중일충교통사건정황하,전이적교통류량대소대교통운행상황적영향진행민감성분석.결과표명,전이적교통량대소대우정개로망연오유현저영향.재본문적실례분석중,전이10%적교통량대정개로망적연오최소.
This paper presents a CORSIM-based simulation approach to evaluating the effects of incident manage-ment and signal timing modification on traffic operations along I-75 and alternative routes in Sarasota County,Florida.U.S.A.The County has developed special eountywide signal timing plans on alternative routes to guide and direct motorists coming off the interstate(I-75)back onto the interstate at an appropriate location when a traffic incident happens on I-75.These special signal timing plans were developed fof six incident conditions us-ing the SYNCHRO signal timing software.Based on the SYNCRHO data provided by Sarasota County, a CORSIM data set was developed for the evaluation of the effectiveness of the route diversion plan.The findings from the CORSIM analysis indicate the route diversion pa=lans developed by the County are very effective in terms of traffic operations,reducing overall network delay by an average 21%.An additional sensitivity analysis was conducted for one of six incident conditions to examine the impact of diverted traffic volume on traffic operations.The results im-plied that the percentage of diverted traffic volume had a great impact on the total delay of the entire network.A 10% diverted traffic volume was found to give minimal total network delays based on the case study.
