Mobile Application for Acquiring Geodata on Public Transport Network - Geoinformatics for Intelligent Transportation - page 254

5 Data Warehouse Lids

The practical solution of the data model of transport network static elements is
based on the LIDS geographic information system of BERIT, Brno division of
Asseco [ 10 ], which offers wide functionality for registering spatial data (especially
those related to networks), their maintenance, processing, analyses and evaluation.
The GIS software solution of LIDS uses a three-layer architecture utilizing the
XML standard. The ground is the Oracle spatial geodatabase where the geometry,
semantics and topology of individual network elements are stored. LIDS allows for
very effective graphic and non-graphic data management and their storing
in a unique central database in compliance with standards of the OpenGIS con-
sortium [ 11 ]. The graphic interface is formulated by means of the CAD Micro-
Station software (or the PowerMap Bentley Systems); the core of the system is the
well scalable LIDS data server which supports long-term transactions and repli-
cations of the database data [ 12 ]. The interconnection with users and third parties

'
products is provided by the intranet LIDS application server (LAS). The LIDS
system is designed as a general system and its speci c behaviour is controlled by

the data model in the form of system con guration tables unique for the actual

application [ 13 ]. In this case, the application was based on the newly designed data
model for KIDSOK public transport geodata management.
The disadvantage of the GIS solution of LIDS is the pre-de ned con guration

for a speci cult to adapt or extend; the great advantage is

the effective management of code lists (set of values may be acquired by the
attributes) by means of so-called Codelist Manager (Fig. 3 ). It is a user-friendly
interface where all code lists and their values, which occur in the data model, may
be managed. Apart from erasing, other values may be added or the existing values
may be modi

c data model which is dif

ed. The LIDS Codelist Manager for the geodata management data
model of the PT network comprises nearly 40 different code lists. Some were

Fig. 3 The Codelist Manager for the management of data model codelists (Source internal)