The earth space information technology is the current world within
the scope of one of the fastest growing three important high technology
and new technology, with its constant development and improvement of
the basic theory and technical method has been increasingly mature, and is
from planning, land, mapping, military and other professional application to
the social life of many industries and fields penetration and expansion, The
application of 3S technology in the field of transportation has become a hotspot
of research and application at home and abroad. Introduces the earth space
information technology applications in the field of road traffic, this paper
expounds the 3 s technology and road traffic in combination with theoretical
support and technical methods, and then introduces its in traffic management,
logistics management, intelligent navigation, traffic information service, and
typical application of traffic safety, etc, and prospects the development prospect
in the field of 3 s technology in the modern traffic.