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原文传递 CALIBRATING AND VALIDATING TRAFFIC SIMULATION MODELS FOR UNCONVENTIONAL ARTERIAL INTERSECTION DESIGNS.

题名：	CALIBRATING AND VALIDATING TRAFFIC SIMULATION MODELS FOR UNCONVENTIONAL ARTERIAL INTERSECTION DESIGNS.
作者：	Boone-JL; Hummer-JE
关键词：	TRAFFIC-SIMULATION-MODELS; CALIBRATIONS-; VALIDATION-; CONTINUOUS-GREEN-T-INTERSECTIONS; TRAFFIC-CIRCLES; U-TURN-INTERSECTIONS; COMPARISONS-; FIELD-MEASUREMENTS
摘要：	Computer simulation has become an important tool for evaluating transportation strategies quickly and efficiently. Simulation is especially critical in assessing the potential of innovative traffic control alternatives. The calibration and validation of simulation models characterized by unconventional design and operation strategies is presented. This effort was part of a project to investigate unconventional traffic control alternatives for the North Carolina Department of Transportation. Three alternatives were selected for in-depth investigation: the Florida continuous green T-intersection, an application of the modern roundabout, and the Michigan median U-turn intersection. These strategies were examined using Traf-Netsim 4.0 and the macroscopic analysis package SIDRA 4.07. Models for each of the three alternatives were developed and efforts were made to calibrate and, in two cases, validate them with field data collected in Florida, Maryland, and Michigan. The highlights of the calibration included (a) updated critical gap distributions for the six-lane median U-turn and the roundabout, (b) a larger saturation flow rate for the median U-turn, (c) an average roundabout speed, and (d) a distribution of traffic into the free flow lane(s) for the continuous green T-intersection. The validation effort showed that the Traf-Netsim and SIDRA results compared reasonably well to field measurements.
总页数：	Transportation Research Record. 1995. (1500) pp184-192 (10 Fig., 3 Tab., 7 Ref.)
报告类型：	科技报告