UPDATE 1-Motorists log 0.9 pct more miles on U.S. roads in Sept vs year-ago -DOT

-DOT@ (Adds details)

NEW YORK, Nov 20 (Reuters) - Motorists logged 0.9 percent more miles on U.S. roads and highways in September than a year earlier on a seasonally adjusted basis, according to data released Monday by the U.S. Department of Transportation.

Motorists logged a seasonally adjusted 267.4 billion vehicle miles in September, up 2.3 billion vehicle miles over September 2016, DOT figures show. That was up 0.1 billion vehicle miles, or 0.04 percent, over August 2017.

Cumulative travel for 2017 increased by 1.3 percent, or 31.4 billion vehicle miles. The cumulative estimate for the year is 2,410.3 billion vehicle miles of travel, DOT said.

(Reporting by Scott DiSavino; Editing by Bernadette Baum)