The coalition had been urging the city to speed up construction of protected lanes, which are barriers between where cars park and bikers ride. The barriers could be made of concrete or even be planters, said Brian Wiedenmeier, the coalition’s executive director.

“Paint and posts don't cut it anymore. If somebody can park somewhere, they will,” he said Wednesday.

“What we're focused on is physically protected and separated bike lanes throughout our city,” he added, noting that cyclist Tess Rothstein was fatally struck by a truck after dodging the open door of a parked car while traveling in an unprotected lane on Howard Street in March.

Breed also asked the SFMTA to increase traffic citations for blocked bike lanes by 10% over the next six months — starting immediately — to help keep them clear. In the last half of 2018, the agency said it issued 27,000 citations for infractions related to blocking bike lanes.

“Mayor Breed had been absolutely clear with us: She's expecting us to get safe streets built fast. We're trying to rise to that challenge,” said Tom Maguire, SFMTA's sustainable streets director.