Yes you will be sued as this information is some sort of
government info i think. By publishing the routes of the buses and
maps etc, other people can have free access to it and who knows
some itchy fellow might plant a bomb along that road? 
I think you can show the table that they provide but it'd
be advisable not to show to route info i.e
Toa Payoh Lor 6 - Toa Payoh Int
Toa Payoh Lor 6 - Opp TP Swimming Complex .... etc.
their e-guides are not 100% accurate. It might sometimes be
outdated as well..
