If you have a set of point locations that you want to compute the OD distances/travel times and you are not
interested in the shape of the shortest paths, then use the OD Cost Matrix solver. For this you need a network
dataset that has a time attribute. If you do not have street data then I can suggest that you install the
free streetmap data that comes ont the Data and Maps DVD and use that.
Once you have the data installed, start ArcMap, add the street network to ArcMap, add you origin/destination
point feature class to ArcMap (if it is simply a table of Lat/Long's, then you can use the Add Data from XY
capabilities to turn that into feature class), create a new OD Cost Matrix layer, load the points as origins and
destinations and solve.
Regards,
Jay Sandhu