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Basic shot info:
Focal Length6.0 mm; equivalent: 36 mm
Aperture ValueF3.6
FlashFlash did not fire
Metering ModeMulti-segment
Shutter Speed Value1/181 sec
ISO Speed Ratings125
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Exposure Bias Value0 EV
Max Aperture ValueF3.6
Brightness Value5.8
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Exif Version2.10
Exif Image Width550 pixels
Exif Image Height412 pixels
Color SpacesRGB
CompressionJPEG (old-style)

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Hines Bridge
We move forward, to Deer Island. (The Chain bridge is behind the camera location.) The bridge from the north side of the island to the mainland -- now called the Derek S. Hines Memorial Bridge -- includes a double-leaf bascule section (lift bridge) to allow boats to pass -- note traffic signals. There is a real hazard ahead in the roadway for bicyclists and motorcyclists: the bascule section has a steel grid deck. The usual engineering solution for bicyclists is to place a traction-surfaced metal plate on top of the grid deck. Instead, a "walk bike" sign has been posted at a location where it is inconvenient to leave the roadway -- no turnout, no curb cut. The sidewalk is much too narrow for safe bicycle travel, the apparent reason for ordering bicyclists to walk. The sign does not say whether to walk on the roadway or the sidewalk. Massachusetts law only allows bicyclists to be prohibited from using the roadway on limited-access and express state highways.
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Photos and captions by John S. Allen
unless otherwise indicated.