The design standard is classified into seven groups (R6,R5, R4,R3,R2,:R1 & R1a) for rural areas and into seven groups (U6,U5,U4,it3,U'2,U1,& Uta) for urban areas. These are in descending order of hierarchy. (a) Standard. R6/U6 : Provides the highest geometric design standard for rural or urbanareas. They usuallyserve long trips with high speed of travelling, comfort and safety.It is always designed with divided carriage way and with full access control. The Rural and Urban Expressway falls under this standard. (b) Standard. R5/U5: Provides also high geometric standard and usually serve long to intermediate trip lengths with high to median travelling speeds. It is usually with partial access control, The Highway, Piimary Road and Arterial falls under this standard. (c) Standard R4/U4: Provides medium geometric standard and serve intermediate trip lengths with medium travelling speeds. It is also usually with partial access control. The Primary Road,Secondary Road, Minor Arte...