Prophet of the Way wrote:

> Major service disruptions are scheduled for JR East Lines that go
> through Shinjuku due to construction of new facilities.  Trips downtown
> best avoided this day.
> 
> Date:  April 15th, Saturday
> Hours: Whole day.

A new "Southern Terrace Exit" will start service the next day (April 
16th.)  The new exit will be on the south side of Koshu-kaido, southwest 
of the current South Exit.

Five rail companies and two subways serve Shinjuku, the world's busiest 
railway station.  There are dozens of exits.  When given directions, 
make sure to use the right exit.  15 minutes inside the station 
corriders saves you an hour on the unmarked streets.