Vehicles crowd roadways during the morning rush hour in North Raleigh.
Vehicles crowd roadways during the morning rush hour in North Raleigh. Staff News& Observer file photo
Vehicles crowd roadways during the morning rush hour in North Raleigh. Staff News& Observer file photo

Data on pollution from traffic can help plan mass transit

May 09, 2017 01:24 PM

UPDATED May 10, 2017 03:16 PM

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