My wife and I left San Jose a little
after 7 this evening, heading for Sacramento, where we are teaching
at an SCA event tomorrow. In planning the trip—including stops
going, coming, or both to visit my grandchildren in Berkeley and my
sister's in Davis—one important question was when traffic would be
heavy, what time rush hour starts and ends on the relevant highway on
a Friday in November.
My Android phone shows me current
traffic conditions, but the designers carelessly neglected to attach
a time machine, so I did not have the option of seeing today's
information yesterday or the day before. Someone should correct that
omission. There is no way of knowing for certain what traffic
will be like this Friday, but what traffic was like last Friday, and the
Friday before, and the same time of year last year and the year
before, are all public information. By combining information of that
sort with sophisticated statistical analysis, it should be possible
to make a pretty good prediction of future traffic a day, a week, even a year in advance.
What I am imagining is a web page that
looks very much like the Google Maps picture on my phone, with the
traffic layer selected. The only addition would be the ability to set
date and time.
Does it already exist somewhere?