For driving, unless you are parking in the Timon lot, don't forget to plan on at least one extra hour round trip for the tram (we have timed it out, from leaving the park to reentering the park is approximately one hour) time to leave & return the parking structure is approximately another 45 minutes on top of that (may varry depending on how fast you walk and where you are parked). We calculate out the time at an hourly rate of 1.5x of the equivalent of what I get paid per hour at work per hour to determine if we are saving money or not, as this is at least what my free time is worth, if not more than that.