SAN FRANCISCO (KCBS)— On Monday, San Francisco Mayor Ed Lee was at Yorba and Sunset Boulevard where a new pedestrian countdown signal was just installed. Sunset, a major thoroughfare, is among the six percent of city streets where 60 percent of the worst accidents occur, according to city officials.

The city’s Vision Zero policy seeks to eliminate fatal pedestrian and bicycle collisions in the city by 2024. Officials joined the mayor in yet another step towards this goal. The countdown signal is the latest in a $3.3 million effort to make city streets safer.

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“It is not a freeway,” Mayor Lee said. “It is a major pedestrian and traffic thoroughfare that must be respected for all the modes of transportation.”

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There have been two injury accidents and one fatality at this intersection this year and Supervisor Katy Tang hopes this will make a difference.

“We do need these additional traffic and pedestrian safety measures here. Not just at Yorba here, but along Sunset Blvd. so that all of our intersections have signals,” Tang said.

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The speed along Sunset Blvd has been reduced from 35 to 30 miles an hour to slow traffic on the road where 34 accidents occurred during a recent five-year period.