We have documented the flat out abuse of the the motorist at the hands of municipalities which employ stop light cameras. Often there is a revenue sharing deal with a company which gets as much as 50% of all tickets issued by the cameras. There is real incentive for cities and towns to abuse the system.
But shortening yellow lights to increase revenue is just disgusting. This is happening in Florida (and likely other places.) At least one death is blamed on the department of transportation policy.
They are a cash cow. But a “for-profit business between cities and camera companies” that incentivizes making the roads more dangerous for citizens doesn’t sound like a particularly ethical undertaking for the government. As it turns out, “ethical” is not a word often associated with how the traffic cameras are operated. As Holman Jenkins recently explained in the Wall Street Journal, the cameras have become a sleazy new form of taxation, and “When governments are engaged in sleazy new forms of taxation, sleaze happens.”