I-680 in Youngstown Ohio is a slow 50 mph due to curves. The local police are now just standing on overpasses hidden and out of view to drivers, and using camera technology to ticket you. You will not know you were caught speeding until 6 weeks later in mail. No signs on hway note this technology. Wazers should be able to report stretches of highway your are now entering are patrolled by hidden camera technology.