San Francisco’s Bay Area Rapid Transit (BART) met its July 1 goal to install security cameras on its entire train car fleet.

The new cameras bolster BART’s existing security infrastructure network, which includes cameras on platforms and inside and outside stations, as well as on police officers themselves. The cameras and digital recording devices provide high quality images from onboard BART trains, with four cameras installed on each train.

“The installation of new digital cameras demonstrates our commitment to public safety,” said BART Police Chief Carlos Rojas. “These cameras will be an effective tool for solving crimes that occur on the BART system by helping investigators to identify suspects. The devices will also serve as a deterrent to prevent some crimes from ever occurring in the first place.”

The cameras have a useful life of six to seven years. That coincides with the time it will take for the aging train cars to be retired from service as BART welcomes the “Fleet of the Future.” The incoming fleet has been designed with built-in cameras.

The BART Board of Directors approved the contracts to purchase the cameras, DVRs, and box housing units for $463,749 in August, 2016 after testing various models. The full cost of the project including labor and other materials was $1.42 million with the money coming from BART’s operating budget.

The original in-train camera deployment included a mix of real and decoy cameras that were installed in the late 1990s and early 2000s as a deterrent against vandalism.