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Traditional traffic analysis methods, such as those contained in the Highway Capacity Monuai, are relatively accurate for undersaturated traffic conditions on simple roadway design configurations. However, these methods are often inadequate when analyzing the interdependent complex components that characterize most of today's transportation systems. For example, when analyzed in isolation, an intersection may appear to operate acceptably, when in reality, the intersection may be subject to severe congestion due to queues that spill back from an adjacent intersection or freeway ramp meter. Many other causes of congestion, such as weaving on arterial streets or an overflowing turn pocket, are also overlooked by traditional methods of analysis. For these reasons, detailed traffic operations analyses and traffic simulation are frequently necessary. Hexagon staff has experience using many traffic simulation methods to answer questions that are more complex than traditional traffic analysis methods. Example questions include: u c • How would the addition of a new signalized intersection located near an existing signal affect ,~~, the signal progression along a major arterial street? • Should a bus stop be located on the near or far side of an intersection? • Will light rail transit signal preemption cause queues to overflow turn pockets and block c adjacent through traffic? How often? • How would the addition of freeway ramp metering affect travel speeds on the freeway o mainline? ~' • How will the proposed freeway ramp meters affect local street operations? c ~ • Will a planned freeway improvement project to add an auxiliary lane alleviate congestion in a ~ major weaving area? 0 These questions and many more can be addressed applying the latest state-of-the-art simulation software = including TRAF-CORSIM (NETSIM and FRESIM), TRAF-CORFLO, FREQ10, TRANSYT-7F, PASSER-II, and ~~ Transportation Operations Analysis