. >> reporter: pedtrian advocate, nicole snider, says these streets were designed for cars, not peolen mind. they hope this will send a message. >> collisions are preventful. they are not accidents. they e preventful things. >> reporter: she supports the vision 0 plan to eliminate pederian deaths in the next ten years through enforcement and redesign ofrafficot spots. >> a b truck just barely ssed me, and it is scary. >> reporter: he says pedestrian deaths will keep happening as long as cars keep rolling. >> there's absolutely nothing they can do about it. it's a car culture. people are going to die, simple as that. > reporter: police know the crosswalk clock is ticking to save live, but they will try. >> when we travel, we are distracted or hurrying to get to an appointment, but we all have to take responsibility when an accident occurred. joining me now is ed risk, irector of transportation for the san francisco municipal transportaon agency. you have a huge responsibility. >> yeah, we have a lot we are responsible for. the snmpa is responsible for the transportation in the city inc