. >> paul rivera, his wife and 2-year-old girl live on the busy corridor in enrichment. >> constantlywe are watching cars because we are scared we are going to get hit. >> a few blocks away from them, a speeding car fatally struck a 72-year-old in january. residents say near misses are too common. >> my wife and i were crossing the street and i had to jump in front of a car so we would not get hit. >> safety advocates witnessed three previous attempts to pass legislation bail at the state level. mark and lindsay have walked san francisco and often checked speeding cars. >> every mile a driver goes above 25 miles per hour, the risk for pedestrians just goes up so much. >> unlike the 13 red light cameras in san francisco, which can take photos of drivers, the new speed cameras will only be able to identify license plates in a 30 miles per hour zone like on fulton. cameras could initiate fines for only cars going 11 miles per hour over the limit. >> 40 miles per hour, a person gets hit, we are so vulnerable. 75% chance you will not survive that crash or be very severely injured. >> the s