PHILADELPHIA (WPVI) -- Philadelphia Mayor Jim Kenney signed the Roosevelt Boulevard speed camera legislation into law Wednesday."Today we are taking an important step to calm speeds on one of the most dangerous roads in our city," said Mayor Kenney. "At the beginning of my administration, I committed to taking action on Roosevelt Boulevard. Adding automated speed cameras on the Boulevard is one of the most effective steps that we can take towards eliminating traffic deaths."The signing of the legislation means the continued progress toward the City's Vision Zero goal of zero traffic deaths by 2030 by signing legislation to bring speed enforcement cameras along the 12 miles of Roosevelt Boulevard, between 9th Street and the city's boundary with Bucks County.Cameras will be installed along the High Injury Network corridor by the end of this year.This 11.75 mile stretch of roadway is considered one of the most dangerous roads in the state.Between 2013 and 2017, 139 people were killed or seriously injured on Roosevelt Boulevard, according to PennDOT, and nearly 2,700 crashes were reported.Philadelphia City Council voted in favor of the speed cameras last month Speeders would initially have a grace period where they would receive a warning in the mail. After that, the fines start at $100.Critics of the cameras are concerned about privacy and false readings, among other things. Some believe the speed camera program is just a money grab for the city.Officials believe speed cameras backed up by fines will improve driver behavior. Mike Carroll the Deputy Managing Director for Transportation said when the cameras were introduced to problem roads in New York City speeding went down 63 percent and fatal crashes were reduced by 55 percent.Proponents argue the speed cameras will make Roosevelt Boulevard safer.The hope is to have the speed camera system up and operating by late this year, maybe as early as the fall.If a camera detects a car traveling 11 miles over the posted 45 miles per hour speed limit the fine $100 dollars. If the vehicle exceeds the speed limit by 30 miles per hour, the fine bumps to $150.There will be a 60 day grace period where is a vehicle should be found speeding, its owner would receive a warning. After the grace period officials said the owner of a car found exceeding the speed limit would get a fine.