“Commute trips” include those traveling between home and work. There is a broad literature of studies concerning the valuation and treatment of time savings for commute trips, which is discussed in Forkenbrock and Weisbrod (2001) and Litman (2008). There is also a line of research (Madden, 1985 and Zax, 1991) which shows that businesses ultimately end up paying a premium to attract and maintain workers in parts of urban areas where transportation costs to employees are higher. This premium is typically placed at half or more of the incremental value of time delay, and can be treated as.