page_title: Wigwag (railroad)
hierarchical_section_title: Wigwag (railroad)
caption_attribution_description: English: This Magnetic Flagman wigwag protects traffic crossing the CORP (Central Oregon &amp; Pacific) Railroad on Dole Road in Southwestern Oregon, adjacent to Interstate 5. Northbound motorists on I-5 can briefly see this wigwag from the right-hand lane.
context_page_description: Wigwag is the nickname given to a type of railroad grade crossing signal once common in North America, named for the pendulum-like motion it used to signal the approach of a train. It is generally credited to Albert Hunt, a mechanical engineer at Southern California's Pacific Electric interurban streetcar railroad, who invented it in 1909 for safer railroad grade crossings. The term should not be confused with its usage in Britain, where wigwag is generally used to refer to alternate flashing lights, such as those found at modern level crossings.
context_section_description: Wigwag is the nickname given to a type of railroad grade crossing signal once common in North America, named for the pendulum-like motion it used to signal the approach of a train. It is generally credited to Albert Hunt, a mechanical engineer at Southern California's Pacific Electric (PE) interurban streetcar railroad, who invented it in 1909 for safer railroad grade crossings. The term should not be confused with its usage in Britain, where wigwag is generally used to refer to alternate flashing lights, such as those found at modern level crossings.
caption: A Magnetic Flagman wigwag signal in use in southern Oregon in 2007.
exif: {"Image Make": "Canon", "Image Model": "Canon PowerShot SD600", "Image XResolution": "180", "Image YResolution": "180", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2007:05:20 12:45:11", "Image YCbCrPositioning": "Centered", "Image Tag 0x1001": "1600", "Image Tag 0x1002": "1200", "Image ExifOffset": "266", "Image CustomRendered": "Normal", "Image ExposureMode": "Auto Exposure", "Image WhiteBalance": "Auto", "Image DigitalZoomRatio": "1", "Image SceneCaptureType": "Standard", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "180", "Thumbnail YResolution": "180", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "2932", "Thumbnail JPEGInterchangeFormatLength": "4743", "EXIF ExposureTime": "1/400", "EXIF FNumber": "4", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2007:05:20 12:45:11", "EXIF DateTimeDigitized": "2007:05:20 12:45:11", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "5", "EXIF ShutterSpeedValue": "277/32", "EXIF ApertureValue": "4", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "4", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, auto mode", "EXIF FocalLength": "303/25", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "1200", "EXIF ExifImageLength": "1600", "EXIF FocalPlaneXResolution": "1200000/169", "EXIF FocalPlaneYResolution": "64000/9", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera"}