File:Metra Chicago (5994066093).jpg
Original file (2,571 × 1,688 pixels, file size: 956 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionMetra Chicago (5994066093).jpg |
Train wheels wear just as car tyres do and they need to be checked regularly. When the wear reaches certain limits, the treads either have to be reprofiled to the correct shape or the wheels replaced. Reprofiling wheels is a slow and expensive process but train and wheel design and maintenance has improved considerably over recent years, reducing the periods between visits for reprofiling. Even so, there are still persistent cases of railways running into unforeseen or unusual wheel wear problems and the wheel/rail interface still needs a lot more research before it is fully understood. I captured this scene at a BNSF / Metra maintenance yard in Chicago not to far from union station.. This Image also appears in 'Amtrak train Routes' |
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Author | Loco Steve from Orpington, UK | ||
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Camera location | 41° 51′ 56.51″ N, 87° 38′ 19.88″ W | View this and other nearby images on: OpenStreetMap | 41.865697; -87.638856 |
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Licensing
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- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image, originally posted to Flickr, was reviewed on 2 February 2014 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:39, 2 February 2014 | 2,571 × 1,688 (956 KB) | Mackensen (talk | contribs) | Cropped 3 % horizontally and 4 % vertically using CropTool with precise mode. | |
22:36, 2 February 2014 | 2,661 × 1,758 (796 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:Mackensen |
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File usage on Commons
The following 5 pages use this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D3000 |
Exposure time | 1/250 sec (0.004) |
F-number | f/8 |
ISO speed rating | 100 |
Date and time of data generation | 11:40, 26 July 2011 |
Lens focal length | 55 mm |
JPEG file comment | CREATOR: gd-jpeg v1.0 (using IJG JPEG v80), quality = 90 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | picnik.com |
File change date and time | 11:40, 26 July 2011 |
Y and C positioning | Centered |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 11:40, 26 July 2011 |
Meaning of each component |
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APEX exposure bias | 0 |
Maximum land aperture | 5.0219238147438 APEX (f/5.7) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 50 |
DateTimeOriginal subseconds | 50 |
DateTimeDigitized subseconds | 50 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 82 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Structured data
Items portrayed in this file
depicts
26 July 2011
41°51'56.509"N, 87°38'19.882"W
0.004 second
55 millimetre
100
image/jpeg
- 14th Street Yard (Metra)
- July 2011 in Chicago
- July 2011 in rail transport in the United States
- Chicago Board of Trade Building
- Aon Center (Chicago)
- Legacy at Millennium Park
- Two Prudential Plaza (Chicago)
- 235 West Van Buren
- Chase Tower (Chicago)
- Chicago skyline in 2011
- 425 South Financial Place
- Mid-Continental Plaza
- Blue Cross Blue Shield Tower
- 190 South LaSalle Street
- Harris Bank Addition II
- River City, Chicago
- Roosevelt Road over Union Station tracks (Chicago)
- 340 on the Park
- Rolling stock axles