According to European Transport Commissioner from Slovenia, Violeta Bulc, the conference is an excellent opportunity to develop good relations with neighbouring countries.

Bulc said she was happy that the conference will be held in Ljubljana, the 2016 Green Capital of Europe "which demonstrates all main guidelines of the EU transport on every step".

This year, the conference will for the first time last for three days and focus on clean, sustainable, inclusive and safe mobility. Investments in transport connectivity, especially in multi-modality will be highlighted, Bulc said.

According to her, the bloc is preparing to lay the foundations for integrated services such as integrated tickets and integrated logistics services.

All 28 EU member states will be represented at the conference along with innovative companies, including startups, the European Investment Bank, other public financial institutions, private investors and the civil society.

Several representatives of the Commission will be there, including Vice-President Maroš Šefčovič, Commissioner for Budget and Human Resources Günther Oettinger and Commissioner for Regional Policy Corina Cretu.

The main political event of the first day of the conference will be a ministerial featuring the countries of the Western Balkans and Turkey, South Mediterranean and the countries of the Eastern Partnership.

Bulc says the goal of the meeting will be to encourage coordinated transport connections between the EU and its neighbouring countries and standardise the documents needed at border crossings.

The other topic will be Vision O, the EU's policy on transport safety.

More than 100 entrepreneurs will present their vision of mobility on the first day of the conference.

Thursday will be all about intercultural cooperation and European institutions. "We will discuss further strategies between transport, energy and digital connectivity. Investments in this field will be a priority in the next financial period," Bulc said.

The most burning issue, investments in transport infrastructure and mobility, will be discussed on Friday, with Commissioner Oettinger explaining the basic concept of financing that will be officially presented on 2 May.

Officials in Brussels are counting on closing investments in all nine main corridors in the 2012-2030 period, for which additional EUR 500bn will be required, according to Bulc.

Among the main projects that need to be carried out are a tunnel between Turin and Lyon, the Brenner tunnel, a bridge connecting Denmark and Germany, a railway connection among all Baltic countries and the second Koper-Divača railway track in Slovenia.

Commenting on the latter, Bulc said that the link to the Adriatic Sea was important for entire Europe. If Slovenia's project fails, than Croatia, Austria or Italy will need to step in to meet the needs of Central Europe, she said.