Travel Time is a Mail App for Office that allows you to create travel time appointments in your calendar before and/or after any appointment you are creating or editing in Outlook, Outlook Web App, or your mobile device.
Note: Travel Time cannot be installed directly by users because it requires full mailbox access in order to be able to create appointments. An Exchange administrator must install this app from the Exchange 2013 or Exchange Online Admin Center.
See http://technet.microsoft.com/en-us/library/jj943752(v=exchg.150).aspx for more information.
For specific information about how to set up Travel Time on an Office 365 tenant you administer, see Travel Time Office 365 Setup.
For any other question on Travel Time: Send us an email!