Traffic Engineering is a unique branch of civil engineering that characterizes McMahon’s foundation since 1976. Unique in that it focuses on enhancement of transportation modes through various means directed at vehicle operators. On roads, traffic engineers focus on improved signing, pavement marking, and signalization to provide guidance to drivers. Drivers who understand how to get to their destination, in an orderly manner, produce the most “throughput” or “capacity” along the roadway. Other travel modes may be optimized similarly. For example, bicyclists can benefit from designated bicycle lanes denoted by pavement markings, buses can benefit from signal preemption systems, and pedestrians can experience safer roadway crossings with the addition of pedestrian signals and crosswalks. In these examples, McMahon’s traffic engineers provide the research, planning, and design capabilities to justify and implement these improvements.