The Metro Consortium, which includes Admiral insurance, British Gas and Cardiff Business School, says the transport system is an opportunity to rethink the role of towns and communities across the Valleys.
The report's author, Mark Barry, said the metro would simply connect connect the region, and "give the region the opportunity to be more economically effective."
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The First Minister is in Doha this weekend following the announcement earlier this week of a new route linking Wales to the Middle East.
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Dry and clear overnight setting us up for a beautiful start to the Bank Holiday weekend!