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原文传递 COMPARISON OF FREEWAY SIMULATION WITH INTEGRATION, KRONOS, AND KWAVES.

题名：	COMPARISON OF FREEWAY SIMULATION WITH INTEGRATION, KRONOS, AND KWAVES.
作者：	Prevedouros-PD; Li-H
关键词：	Flow-speed-relationships; Freeways-; Highway-Capacity-Manual; Highway-capacity; INTEGRATION-Computer-model; KRONOS-Computer-model; KWaves-Computer-model; Level-of-service; Software-; Traffic-congestion; Traffic-density; Traffic-simulation; Traffic-speed
摘要：	The ability of three software models to simulate freeway operations was tested under moderate-to-heavy traffic with and without an incident, and heavy traffic. Sensitivity with respect to freeway mainline lanes, capacity and jam density also was inspected. Cross-sectional (spot) speeds obtained with AUTOSCOPE as well as segment average speeds obtained with instrumented vehicles were used for making objective comparisons. Overall, INTEGRATION and KRONOS gave better results than KWaves. INTEGRATION produced acceptable results for all traffic conditions but its lane-changing replication was not realistic, especially for on- and off-ramps connected with an auxiliary lane. KRONOS required the fewest modifications to achieve good results but it overestimated the benefits of adding a lane to the mainline freeway. KWaves98 is limited to the simulation of freeway operations under heavy traffic conditions. Its triangular modeling of the speed-flow relationship produces a delayed onset of and early relief from congestion. Outputs from these models can also provide estimates of level of service per the "Highway Capacity Manual.".
总页数：	Conference Title: Fourth International Symposium on Highway Capacity. Location: Maui, Hawaii. Sponsored by: Transportation Research Board. Held: 20000627-20000701. Transportation Research Circular. 2000/06. pp96-107 (2 Fig., 2 Tab., Refs.)
报告类型：	科技报告