The city will roll out today the first municipal buses here equipped with security cameras, and plans to eventually install them in all 525 buses in TheBus fleet.

The system has been installed on six buses so far, but only two or three of the camera-equipped buses will be running today, Oahu Transit Services said.

The city said the intent is to increase safety for bus riders and drivers.

The surveillance system, which comprises four internal and two external cameras on standard 40-foot buses and an additional two internal cameras on 60-foot buses, will initially be installed on 158 buses once the kinks are worked out of the system, said Roger Morton, president and general manager of OTS, which operates buses for the city.

Eighty percent of the $1.03 million project cost for the first 158 buses is being funded by Federal Transit Administration, with the city paying the rest ($205,114), the city Department of Transportation Services said in a news release.

Images will be stored in a central high-definition digital recording system, the city said. Video will be viewed only when necessary to conduct a review of an event on a bus, the city said.

An official 30-day acceptance test period of video systems on 10 buses begins Tuesday. The test period will allow officials to adjust camera angles and monitor the system’s ability to download the information to large servers, Morton said.