Traffic control system gets the all-clear signal
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 Pittsburgh Tribune-December 3th 2004
Pittsburgh’s traffic signals are inching into the modern ages.
Wiring installed in 1997 is only now being complemented with a modern computer system to run the signals so they ease the flow of traffic.
The city is years behind others nationwide, yet at the forefront of a regional push to spend federal transportation money to upgrade thousands of old traffic signals across Southwestern Pennsylvania.
“You can’t build your way out of congestion” with more roads, said Chuck DiPietro, the transportation planning director for the Southwestern Pennsylvania Commission, the agency that budgets transportation spending for the 10-county region. “What’s …
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