4 ms·Why not have traffic lights with cameras to catch offendersby walshemj 8y agoWhy not have traffic lights with cameras to catch offendersrunarberg 8y agoThe same problem. Drivers would just speed up between them. Plus I think there are better ways to get drivers to slow down then catch and punish all offenders.walshemj 8y agoThere are average speed cameras now to get round that issue.