Problems around public transport during Rugby World Cup matches in Cardiff are to be examined by a National Assembly committee.
Passengers reported "significant delays caused by overcrowding," a spokesperson for the Assembly said, with many taking to social media to express their frustration.
The Enterprise and Business committee will be asking transport providers, Cardiff Council and event organisers what the impact was and what lessons have been learned.
The committee chair said he feared people might be "put off" visiting the Welsh capital as a result of the problems.
Most transport providers did not want to comment ahead of the committee meeting on November 5.
However, one told ITV News that the city had seen "record numbers of fans" travelling through, and that travel was "improved and refined" as the tournament progressed.
Estimates put the economic value of Cardiff’s involvement in the World Cup as a host city at £316 million pounds.