Evaluation of Ramp Metering Impacts on Travel Time Reliability and Traffic Operations through Simulation

Table 3

Mean, median, percentile, percentile travel time, buffer time, and buffer index for the no control, ALINEA, and HERO ramp control for the facility.

	No control	ALINEA	HERO	ALINEA (%)	HERO (%)
	553 sec	549 sec	552 sec	-0.8%	-0.3%
	499 sec	497 sec	497 sec	-0.4%	-0.4%
TT85	655sec	639 sec	648 sec	-2.5%	-1.1%
TT95	795 sec	789 sec	805 sec	-0.8%	1.3%
Buffer Time	242 sec	240 sec	254 sec	-0.8%	5.0%
Buffer Index	43.7%	43.7%	46.0%	0.0%	0.05%