PC Nigel Bird, who led the Trehafod BMX bike track initiative, said it had brought "a massive improvement to the area", with a 70 percent cut in anti-social behaviour locally.
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In the second of our special series Welsh education: Making the grade? we visited Bishop Hedley High in Merthyr Tydfil.
More wintry showers will continue overnight and a yellow warning of ice has been issued for central and eastern parts.
Swansea Dry Dock says it's missed out on a number of contracts to dismantle warships because they've gone elsewhere.