The speakers demanded that a range of concerns be addressed in the environmental studies, with air and noise pollution along the 210 Freeway topping the list.
They also questioned the willingness of transportation officials to consider options beyond a miles-long tunnel under Alhambra and South Pasadena.
“What I see here is [the California Department of Transportation] has already decided what they want to do. They just want a rubber stamp,” said La Cañada resident Harvey Zirler to applause from the heavily anti-extension crowd.
Although MTA will make the final decision on which, if any, project to pursue, Caltrans will oversee consultants performing the environmental studies.
After the meeting, MTA spokesman Dave Sotero refuted charges that the agency was favoring the tunnel option.
“We fully respect the concerns of the La Cañada Flintridge community, but one fact bears repeating: We have not presumed an outcome for a tunnel alternative. No decisions have been made,” he said. “It's way too early in the process to presuppose or pick a winner.”
The environmental process is years in the making, and there will be at least two to three years of additional work before any decision is made, he added.
The meeting at the La Cañada High School cafeteria was the 19th in a series of public hearings since February as the MTA determines the scope of environmental studies examining potential impacts of a tunnel or other 710-related projects, such as new rail lines, public transportation or redesigned traffic flows.