Zbornik radova Koridor 10 - Kirilo Savić

3rd International Scientific and Professional Conference
CORRIDOR 10 - a sustainable way of integrations
transaction and clearing system. The standardized solution (Option 2) also requires an implementation
of a certification centre.
As evident from the table 4 the total implementation cost of Option 2 is app. 10% higher than of Option
1. Provided equal cost basis an analysis of operating and maintenance costs was also conducted. The
discrepancy of costs is not substantial. Difference in costs in favour of Option 1 is relatively small in
consideration of the long-term advantages positive cost impact it entails.
8. CONCLUSIONS
The project gave an answer to the question about the proposed technology: unified platform is based
on MIFARE DesFire technology while applied common data model of interoperable public transport
system in Slovenia should be compliant with the EN 15320 standard. Only having a unified technology
doesn’t itself guarantee to achieve ticketing interoperability. In the figure 6 a general scheme of
necessary components for interoperability of public transport in Europe are depicted. The same
scheme also applies for Slovenia.
Figure 6: Interoperability in public transport [24]
The unification of technology is a qualifying condition but it doesn’t make the actual problem since it is
covered by the standards. The core problem to be addressed are system organization and business
agreements that should include issues of unique tariff model, zone model vs. distance model, check in
vs. check-in/check-out system, product definition, validation rules, business and clearing model, data
exchange between different systems, organization, etc. These agreements should involve all entities
and stakeholders referred to in the previous topics (public bodies, operators...).
Speaking about interoperability the first step is decision how deep the integration of public transport in
Slovenia penetrates. There are two opposite implementation possibilities:
- multi-application environment: partners are obligated to use a unified technology while products,
tariff system, etc. remain in exclusive competence of each partner,
- integrated public transport: Along with the unified technology partners also define a unique tariff
system, common products, clearing, etc.
In the first case the user only benefits to use the same electronic card for all public transport. The card
is able to hold many tickets, but ticket in use is valid just for specific operator operating the purchased
service. Implementation of this system is primarily a technological project and can be realized in
relatively short time. The advantage of this approach is step by step implementation: generally less
problematic technological unification is implemented first while further integration depends on the
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