Re: In reality
Google maps currently say 27 minutes for the 1.3 miles - so time must be time of day dependent.
However, to do 1.3 miles in 16 minutes you need to be walking at a average of 4.875 mph, which not only is well above the average for men or women for all age groups.
So suspect that "16-min" is like the broadband speeds: possible but unlikely to be achieved.
I think El Reg should be asking some questions...