(Also known as bulk or platoon metering) permit two or more vehicles to enter the freeway facility per green cycle. Typically two and in some cases three vehicles are permitted to pass the ramp meter per each green signal indication. Although this approach doubles or triples the throughput of vehicles per green indication, similar results cannot be expected for vehicle throughput as longer cycle lengths are required. Compared to the one vehicle per green approach, the multiple vehicle per green approach results, on average, in an increase in throughput of 200-400 veh/h