The core of highway construction is plan, profile, cross section design datas. But the traditional
management systems ignored these aspects, the management of design data is in a state of
confusion, in progress querying of route original design data, as well as project change is very
difficulty. To solve this problem, at the same time, programme to establish the electronic map
of individual project, we will introduce the content of route CAD that usually applied in design
into the management of highway construction project.