کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6781989 533137 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distribution models for start-up lost time and effective departure flow rate
ترجمه فارسی عنوان
مدل های توزیع برای شروع زمان از دست رفته و نرخ جریان خروجی موثر است
کلمات کلیدی
پیشرفت خروج، راه اندازی زمان از دست رفته، نرخ جریان خروج، شبیه سازی ترافیک،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Due to its importance, lots of investigations had been carried out in the last four decades to study the relationship between phase duration and vehicle departure amount. In this paper, we aim to build appropriate distribution models for start-up lost time and effective departure flow rate, by considering their relations with the frequently mentioned departure headway distributions. The motivation behind is that distribution models could provide richer information than the conventional mean value models and thus better serve the need of traffic simulation and signal timing planning. To reach this goal, we first check empirical data collected in Beijing, China. Tests show that the departure headways at each position in a discharging queue are very weakly dependent or almost independent. Based on this new finding, two distribution models are proposed for start-up lost time and effective flow rate, respectively. We also examine the dependences of departure headways that are generated by three popular traffic simulation software: VISSIM, PARAMICS and TransModeler. Results suggest that in VISSIM, the departure headways at different positions are almost deterministically dependent and may not be in accordance with empirical observations. Finally, we discuss how the dependence of departure headways may influence traffic simulation and signal timing planning.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transportation Research Part A: Policy and Practice - Volume 51, May 2013, Pages 1-11
نویسندگان
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