File:Steel sleepers at Dovey Junction - geograph.org.uk - 1085368.jpg
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Steel_sleepers_at_Dovey_Junction_-_geograph.org.uk_-_1085368.jpg (640 × 480 pixels, file size: 320 KB, MIME type: image/jpeg)
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[edit]DescriptionSteel sleepers at Dovey Junction - geograph.org.uk - 1085368.jpg |
English: Steel sleepers at Dovey Junction. During track renewals on the Cambrian lines, the rails of ordinary track are now mostly laid on steel sleepers (except for point-work - see 1083540). That also applies to the new passing loop at Dovey Junction, as seen here. There was once an issue with steel sleepers in that they were unable to be used where speeds exceeded 60 mph because they provided no damping and all forces were transmitted to the underlying ballast. Improvements in the design of the sleepers themselves, the track fixings and the insulation pads between the rails and the sleepers appear to have overcome these problems. It is now suggested that their use could provide track maintenance economies on even the most heavily used and fastest routes in the UK. The maximum speed on the Cambrian routes is 90 mph. The track in the picture has not yet been fully ballasted, that will be done once the loop is complete. The ballast will then be level with the top of the sleeper. |
Date | |
Source | From geograph.org.uk |
Author | OLU |
Camera location | 52° 33′ 53″ N, 3° 55′ 27″ W | View this and other nearby images on: OpenStreetMap | 52.564670; -3.924100 |
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Object location | 52° 33′ 53″ N, 3° 55′ 25″ W | View this and other nearby images on: OpenStreetMap | 52.564680; -3.923500 |
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Licensing
[edit]This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by OLU and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: OLU
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:59, 24 February 2011 | 640 × 480 (320 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=Steel sleepers at Dovey Junction During track renewals on the Cambrian lines, the rails of ordinary track are now mostly laid on steel sleepers (except for point-work - see 1083540). That also a |
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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 | SONY |
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Camera model | DSC-H1 |
Exposure time | 1/20 sec (0.05) |
F-number | f/3.2 |
ISO speed rating | 64 |
Date and time of data generation | 09:01, 17 December 2008 |
Lens focal length | 7.7 mm |
Orientation | 0 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Picasa 3.0 |
File change date and time | 09:01, 17 December 2008 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 09:01, 17 December 2008 |
Image compression mode | 8 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | Uncalibrated |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Unique image ID | 0028b4a80d666fccad85ea9e05303fe4 |
Structured data
Items portrayed in this file
depicts
52°33'52.81"N, 3°55'26.76"W
17 December 2008
52°33'52.85"N, 3°55'24.60"W
0.05 second
3.2
7.7 millimetre
image/jpeg
Hidden categories:
- Files with coordinates missing SDC location of creation (52° N, 4° W)
- CC-BY-SA-2.0
- Images from Geograph Britain and Ireland
- Images from Geograph Britain and Ireland missing SDC depicts
- Images from Geograph Britain and Ireland missing SDC location of creation
- Images from Geograph Britain and Ireland missing SDC geograph.org.uk image ID
- Taken with Sony DSC-H1
- United Kingdom photographs taken on 2008-12-17
- Photographs by John Lucas