I heard that the roads were going to be packed and that taxis were going to be difficult to get but 6 days after the quake, taxis are available everywhere.
Will be heading to Akihabara for a meeting this evening so will update you more on the transport situation.
But my observation so far is that everything seems to be working albeit on a reduced service - even still - trains are so regular that it doesn't seem reduced at all.
I will however be taking my rollerblades out with me today in the event that the trains should stop for whatever reason.
Folks may want to follow
http://twitter.com/#!/JorudanLive for updates on what lines are in service.