This specification is compiled based on the basic provisions and main technical indicators of highway classification, control elements, routes and route intersections stipulated in the "Highway Engineering Technical Standards" (JTG B01-2003). This specification applies to the design of routes and route intersections for new and reconstructed highways.
JTG D20-2006 history
2017JTG D20-2017 Design Specification for Highway Alignment
2006JTG D20-2006 Design Specification for Highway Alignment
1994JTJ 011-1994 Design Specification for Highway Route
JTG D20-2006 Design Specification for Highway Alignment has been changed from JTJ 011-1994 Design Specification for Highway Route.