Chris Sutton, a chartered surveyor with Jones Lang LaSalle, said the metro would provide benefits to Cardiff, but could also transform the economic fortunes of towns like Pontypridd.
"If we can improve the infrastructure to a town like Pontypridd, then we can help regenerate it."
A conference on 'Making the Metro Happen', organised by the Metro Consortium is due to take place next Monday.
More top news
A Wales-based company is partnering with job centres to roll out an initiative to get people with mental health problems back into work.
A cut in tourism VAT could create almost 6,000 new jobs and generate an extra £160m a year for the Welsh economy, it has been claimed.
A wet start to the week with rain for most of us this morning. Things should brighten up this afternoon.