New Lane Lights Installed in Downtown Tunnels
One mystery solved, regarding this question that came in during my online discussion on Monday.
3rd Street Tunnel: This morning driving northbound I noticed new green/red lights in the tunnel. They appeared to be lights for each lane, though I'm not sure there was a one-to-one match. Any idea what they're for?
Answer: John Lisle, spokesman for the District Department of Transportation, says crews have been putting lane control signals in three tunnels: the 3rd Street Tunnel and the Air Rights Tunnel under Massachusetts Avenue on I-395 and the 9th Street Tunnel under the Mall.
It's one of those overhead setups where a light in each lane can be changed from green to red to show a lane ahead is closed, most likely for an accident or maintenance, Lisle said. The lights can be operated from a tunnel control room.
The safety lights, installed to comply with national standards, are still being tested, he said. DDOT also plans to install raised pavement markers and new lane striping in the tunnels.
Posted by: dkf747 | April 29, 2009 10:19 PM | Report abuse
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