You wouldn’t know it from sitting in Manhattan traffic, but a lot of New York streets have a 30 mph speed limit. Under a bill currently making its way to a vote in the City Council, that would be reduced, though they’re still working out by how much. Councilman David Greenfield had sought to reduce the speed limit to 20 mph, but in order to comply with state law, they had to change it to 25 mph on “one-way streets that do not have more than one lane of traffic.” A bit like Mayor Bloomberg’s “slow zones,” but not as slow.