New speed cameras on M4 near Port Talbot are catching 80 motorists a day . In two months 4,500 motorists were caught , generating £100 in fines . The 'average speed ' cameras stop drivers from deliberately slowing down . Measured over a set distance , drivers must continually check their speed .
New speed cameras on M4 near Port Talbot are catching 80 motorists a day . In two months 4,500 motorists were caught , generating £450,000 in fines . The 'average speed ' cameras stop drivers from deliberately slowing down . Measured over a set distance , drivers must continually check their speed .