When a man on a motorcycle crashed into a truck carrying a traffic sign last week, the incident raised questions about whether motorists were being given enough notice.
It led to an overhaul in traffic signs and some questions about the ability of drivers to read them.
The accident occurred at a crosswalk on Interstate 5 near Interstate 4, in northwest New Jersey.
The driver of the truck, Christopher V. Kucinich, 40, of New York, has been charged with driving under the influence of drugs and leaving the scene of a crash.
He was released on a $50,000 bond on Thursday.
His attorney did not immediately return a message seeking comment.
It took a little more than two hours for traffic cameras to spot the crash.
A traffic camera at the Belt Parkway in New Jersey showed a white, two-door sedan traveling eastbound on Interstate 95 near the New York-New Jersey state line.
It crossed the double yellow line and crashed into another car in the right lane.
A sign at the scene said the crash occurred at the intersection of Belt Parkway and I-95.
The traffic camera then showed the car’s license plate and registration plate, as well as a traffic light.
As traffic cameras grew in popularity, some cities installed them as a way to keep the public informed about the speed of traffic in their communities.
In New York City, traffic cameras are posted in the street at the beginning of each intersection, with a yellow light flashing to indicate that a car is coming.
They also can be used in a yellow zone near the intersection to help drivers speed.
The system is designed to help people speed and to deter drivers from speeding, but some drivers say it’s not always clear when a light will change to a red light.
It’s also unclear whether it’s enough notice for a driver to stop.
After the crash, the man’s lawyer, David A. Smith, said in an interview that he believes the incident was caught on video.
“We’re not going to stop, and we’re not stopping, until we know where the problem is,” Smith said.
He said the signs had a red flashing light that was turned on automatically at the time of the crash to give motorists a chance to see if the sign was flashing when the crash happened.
There is no evidence that the man violated any traffic laws or was speeding.
But Smith said it would have been easier for the man to stop and wait for a light to change if the speed limit had been raised.