[postgis-users] Any example of Spatial Networks for PostGIS available

[Hisaji ONO]

Hello.

 Recently I bought Shekhar & Chawla's book, "Spatial Databases  a Tour",
Prentice Hall.

 This book's content is very interesting for me, especially dealing  with
Spatial Networks  & Data Mining on Spatial Databases.

 Does anyone know availability of examples or trials of Spatial Networks for
PostGIS?

Regards.