The article proposed the urban road inquiry system based on the MapObjects module of ComGIS development.

Building of Inquiry Subsystem of City Roads of Harbin General Inquiry Information System of Infrastructure;

The development aim of the route query system of self-drive journey in city is to provide the trav- eling route query,to create the individual traveling route and to constitute the detailed traveling plan for self- drivers.

Secondly,we present a distributed architecture that uses the technology of query routing.

This paper proposes a NSPSLN model to specify and manage semantic relationships between peers data schema so as to achieve a similar node-based measurement for efficient routing query and the mapping algorithms for query reformulation and heterogeneous data integration.

Design and implementation of a chinese speech road inquiry system based on HTK;