How to rediret to specific page depends upon user roles
This is possible with rules
You can try the following


Create a rule with event as "User has logged in".
Add condition "User has role(s)" and configure it as in screenshot
Then save the condition. 
Now add action to you rule and select "page redirect" under system in the select the action to add dropdown. 
This will open a form which will allow you to set the redirection path, simply in the value field give the internal page path you want the user to be redirected to and then save it.Check the screenshot for better understanding

This way you can set redirect for one role and similarly you can create one more rule in a similar way for the other user role, if you want the other role to redirect to some other page.