ISPRS, Vol.34, Part 2W2, “Dynamic and Multi-Dimensional GIS”, Bangkok, May 23-25, 2001 
398 
The difference between highway virtual landscape real-time 
roaming system and 3DMAX is that virtual system represent 
the landscape by the actual earth image obtained by 
photogrammetry, have the function of random roam and 
attribute inquiring, insert and inquire the illuminating document 
somewhere you want. 
Highway virtual landscape real-time roaming system uses 3D 
entity data structure and manages sorts of complex data. It has 
overcome the shortage that the spatial entity can not be 
constructed by surface model, especially like the overpass 
bridge, pole etc. The structure earmarks of route, bridge and its 
appendicular are showed exquisitely. 
4 Conclusion 
The integrative technology of Photogrammetry and Remote 
Sensing and highway CAD has been formed by collection, 
management, modeling of mass data and landscape of road 
design with high-technology. Highway engineers design 
through vivid, realistic image of the earth surface. The quality of 
design and the harmonization between design and 
environment protecting can be ensured and evaluated by the 
new measures and tools. Highway design has been on the 
stage from 2D design to 3D design and from static design to 
dynamic design with the combination of rich experience of 
engineer and advanced technology. The automatization, 
visualization and integration highway survey and design has 
been achieved.