Center manager gave me a three day ride my last year in package. The numbers are a joke because time studies were done 30-40 years ago. Different conditions.
Seems like they don't consider the fact that traffic density has probably doubled in that time in most areas. Traffic is among the biggest time killers. Then there's the issue of Orion which demands more left turns than right so you sit and wait all day.
On that note I wonder everyday why, based on traffic all day, everyday, that it seems 90% of the population is unemployed and is going for a ride while we're working. I get the different work schedules but that doesn't explain the out of control traffic at 10:45 am on a Wednesday.