Type your answer here... transition curve is provided in roads to provide safty aginist over turnig of vichle when it passes in a curve path also to felt compart for passanger inside the vichel when it enter from a stright line to a curve path. also transition curve menimise the amount of super elevatioN ,combinely transition curve and circular curve is called composite or combine curve. for detailed FROM; SANA ULLAH SWAT POLYTECHENIC INSTITUTE MATTA SWAT (SURVEY INSTROCTOR ) please contact on E-MAIL ADRESS=SANASM1990@YAHOO.COM