NEW YORK (AP) - A second strike in six weeks by New York City cabbies did little to slow the city Monday, as familiar fleets of yellow cabs lined up as usual outside transportation hubs.

The cabbies called their second walkout to protest new rules requiring installation of equipment that would let passengers watch TV, pay with credit cards and check their location using a global-positioning system.

The taxi drivers say the technology is a costly invasion of their privacy and works erratically at best. The Taxi and Limousine Commission has said its tests showed the technology worked more than 99 percent of the time.

It was not immediately clear how many drivers were honoring the 24-hour strike.

Bhairavi Desai, executive director of the Taxi Workers Alliance, said that 75 percent of all cabs were on strike, basing her estimate on scouts who report back to the alliance, the group leading the strike.

But the city said the vast majority of the city's 44,000 licensed taxi drivers were working.

Desai and other union leaders held a rally Monday afternoon outside the offices of the Taxi and Limousine Commission, where she told drivers their sacrifice was helping build a stronger union for cabbies.

“We have to believe in our unity, because in the long run, we will win,” she said.

Last month, the alliance, which claims to represent about a fifth of the city's cab drivers, called a two-day strike and deemed it a success. City officials said it had little effect.