"Most of the upsurge is occurring outside the city’s Central Business District (Manhattan below 60th Street), Schaller reports."

Also, the overall increase was 3 to 4% according to the report. In NYC we keep hearing how subway ridership has been increasing every year. At any rate, a decrease of 10 million trips per year out of 1.7 billion is hardly significant.

Also, this simply states that perhaps we should be regulating private vehicular traffic in these areas, not restrict traffic that helps the public (and provides employment for low-skilled people).