详情

原文传递 MODELS FOR RIGHT-TURN-ON-RED AND THEIR EFFECTS ON INTERSECTION DELAY.

题名：	MODELS FOR RIGHT-TURN-ON-RED AND THEIR EFFECTS ON INTERSECTION DELAY.
作者：	Abu-Lebdeh-G; Benekohal-RF; Al-Omari-B
关键词：	TRAFFIC-MODELS; ESTIMATING-; RIGHT-TURN-ON-RED; TRAFFIC-VOLUME; TURNING-LANES; TRAFFIC-DELAY; SIGNALIZED-INTERSECTIONS; HIGHWAY-CAPACITY-MANUAL
摘要：	Models to estimate right-turn-on-red (RTOR) volumes at intersections with exclusive right-turn (RT) lanes are developed, and the effects of RTOR volumes on computed delay are assessed. The important variables in these models are the RT volume, followed by green-time-to-cycle (G/C) ratio, volume of conflicting traffic, and whether there is a protected phase for opposing left-turning vehicles. The estimated RTOR increased as the RTs increased. However, it decreased as G/C and the volume of conflicting traffic increased. Results show that not accounting for RTOR volumes can lead to a significant difference in delay estimates for RT lanes and, to a lesser extent, on the corresponding approaches. For RT lanes, in one-half of the cases the difference was greater than 5%, in more than one-quarter of the cases the difference was greater than 10%, and in at least one of eight cases the difference was greater than 20%. Differences for individual cases ranged between 0 and 130%, with an average of 12%. For approaches, the average delay difference was 4%, and for individual cases the difference ranged between -2% and 78%. As recommended by the "Highway Capacity Manual", actual field counts of RTOR volume should be used whenever available. However, in the absence of such counts, the models developed here can be used and hence should be considered in capacity analysis procedures.
总页数：	Transportation Research Record. 1997. (1572) pp131-139 (7 Fig., 2 Tab., 10 Ref.)
报告类型：	科技报告