In this regard, two surveys have been launched:

Survey on public transport in cross-border regions, aimed at collecting information on the supply, demand, obstacles and solutions for the development and implementation of cross-border public transport services.
DEADLINE: 9 March 2021 https://www.research.net/r/CBPT_EN
Survey on cross-border obstacles between EU Member States and Enlargement Countries, aimed at at collecting information on obstacles and solutions for cross-border cooperation between EU Member States and Enlargement Countries.
DEADLINE: 28 February 2021 https://survey.alchemer.eu/s3/90313163/DG-Regio-CBC
Your contributions are crucial to collect information on obstacles encountered and finding the best solutions to them.