AASHTO Celebrates Transportation History

This year, the American Association of State Highway and Transportation Officials (AASHTO) is putting out a monthly newsletter to celebrate important moments in transportation history.

You can see this month’s issue — or subscribe to the series here.

Among this month’s news items is a piece on the beginning of a very simple yet powerful safety tool:

White Line

The machine that painted the solid white line at the right edge of the road

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