Creating Network Data

Network Data includes two parts: road network layer in feature class format(vector layers) and the corresponding network dataset.

Users can create the road network layer in feature class using desktop GIS software, like SuperGIS Desktop. What should be noted is that the network layer must be line layer; the different lines represent the corresponding roads. In respect of layer attributes, we need to create all the required attribute fields for performing network analysis, including road name, way type, one-way/two-way, weight, road speed limit, etc. We will introduce the meaning of each field in the following topics.

After the road layer is created, you need to convert the road network layer in feature class as well as its attributes into network dataset by using the built-in converter tool in Network Analyst. Through the conversion, the connection and connectivity of the roads can be created. Besides, the basic data of the segments contained in the network layer will be recorded in network dataset, such as road name, weight, speed, turn restriction, etc. Through the data, the connectivity of segments, which way is one-way/two-way road, the time cost of road can be used to calculate by Network Analyst Extension; furthermore, the optimal route meeting users' needs can be found. In the following, we will introduce the built-in converter tool in SuperGIS Network Analyst.