General info:
ModelCanon PowerShot A570 IS
MakeCanon
Basic shot info:
Focal Length23.2 mm; equivalent: 114 mm
Aperture ValueF5.5
White BalanceAuto white balance
FlashFlash did not fire, auto
Metering ModeCenter weighted average
Shutter Speed Value1/59 sec
ISO Speed Ratings1600
Advanced shot info:
Exposure Bias Value0 EV
Exposure Time1/60 sec
Exposure ModeAuto exposure
Max Aperture ValueF5.5
Exif-related info:
Exif Version2.20
Exif Image Width500 pixels
Exif Image Height474 pixels
Color SpacesRGB
CompressionJPEG (old-style)
User Comment
 Boston Bicycle Summit » Sidepath hazards. (image 14 of 24)


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Sidepath hazards.
Another of Jackson's slides indicating the risk of sidewalk riding. This is an "arc of vigilance" diagram of the type first introduced to the bicycling community by John Forester in the mid-1970s.
Generated by JAlbum 7.4 / PositionMap 5.7.9
Photos and captions by John S. Allen
unless otherwise indicated.