Seattle, like ADOT, also uses a system that mixes the latest technology and automation with the trained eye of traffic operators.
2.
The system will control 639 traffic lights and more than 2, 300 street sensors, along with 44 video cameras designed to let traffic operators remotely check on the cause of a slowdown.
3.
Even if Monday's commute went swimmingly, legions of traffic operators and public safety officials filled the Massachusetts Turnpike Authority's operations control center at the mouth of the Ted Williams Tunnel, waiting for the worst.
4.
"' TOPS "'- "'Traffic Operator Position System "'is a computerized operator telephone switchboard designed by Bell-Northern Research Labs for the SP-1 4 Wire Switch in the early 1970s and still widely used today by toll and directory-assistance operators.
मोबाइल