TCRP Research Report 213: Data Sharing Guidance for Public Transit Agencies – Now and in the Future

TCRP Synthesis 115 - Open Data: Challenges and Opportunities for Transit Agencies

(2015) - A comprehensive report looking at the benefits and challenges of open transit data

APTA Policy Development and Research - Public Transportation Embracing Open Data

APTA's discussion of the benefits and challenges of open transit data (a short summary of the below TCRP report)

TCRP G-16 Development of Transactional Data Specifications for Demand-Responsive Transportation (In progress)

The objective of this research is to develop technical specifications for transactional data for entities involved in the provision of demand-responsive transportation. Expected completion date is late 2018