ce 515 railroad engineering track source: armstrong ch 3, arema ch. 3, rees module 2...
TRANSCRIPT
- Slide 1
- CE 515 Railroad Engineering Track Source: Armstrong Ch 3, AREMA Ch. 3, REES Module 2 Transportation exists to conquer space and time -
- Slide 2
- Track Alignment How is Alignment Measured in Tangent Track?
- Slide 3
- Track Alignment How is Alignment Measured in Curved Track? Mid-Ordinate Offset (in)=Degree of Curvature
- Slide 4
- Horizontal Curve Elements
- Slide 5
- http://zierke.com/shasta_route/picpages/atsf120williamsjct.html
- Slide 6
- Horizontal Curve Elements http://thomascranelibrary.org/jpg/legacy/fig50.jpg
- Slide 7
- Gage Measuring Gage
- Slide 8
- Gage Max Gage allowance 1-3/4 wider Class 4 Operation, 1 max http://img.photobucket.com/albums/v329/Trainman-2/SCRM%20West%20End/IMGP4575.jpg
- Slide 9
- Turnouts 3 Groups of Turnouts Lateral Turnouts Equilateral Turnouts Lap Turnouts http://s145079212.onlinehome.us/rr/howto/faq/faq_turnouts.htm#lapturnout
- Slide 10
- Turnouts Bingmaps.com
- Slide 11
- Turnout Terminology Also See AREMA pp. 89-90 Fig 3-13 from Armstrong
- Slide 12
- The Switch Device deflecting wheels of train from track they are running Switch is portion of turnout from Point of Switch (PS) to Heel of Switch (HS) Video (model): http://www.youtube.com/watch?v=FF8YIH160hA http://www.youtube.com/watch?v=FF8YIH160hA
- Slide 13
- The Switching Mechanism Hand operated (switch stand) Power operated (machine)
- Slide 14
- Frog Permits flange of wheel to cross the other rail http://static.panoramio.com/photos/original/6940512.jpg
- Slide 15
- Frog Types Rail Bound Manganese (RBM) Spring Frog Solid Manganese Self-guarded Frog Bolted Rigid Frogs Movable Point Frogs
- Slide 16
- Guard Rails
- Slide 17
- Railway Crossovers and Crossings Crossovers can be considered as two turnouts Crossing consists of 4 frogs (2 intersecting tracks)
- Slide 18
- Railway Crossovers and Crossings Slip Switch: combination of small angle crossing with pair of connecting tracks within limits of crossing
- Slide 19
- Railway Crossovers and Crossings Information needed to design crossings See AREMA pp. 105-6 Specialty manufactures design these features Train Crossing Frog: http://www.youtube.com/watch?v=jeWxWkTlsUE http://www.youtube.com/watch?v=jeWxWkTlsUE How they work: http://video.google.com/videoplay?docid=2853660703765713140&ei=xnFeS- 28K5jqqwKsyI3oCg&q=Railroad+Frog&hl=en&client=firefox-a# http://video.google.com/videoplay?docid=2853660703765713140&ei=xnFeS- 28K5jqqwKsyI3oCg&q=Railroad+Frog&hl=en&client=firefox-a#
- Slide 20
- Highway Crossings Renewal of Crossings are Expensive Public Safety is Serious Concern
- Slide 21
- Highway Crossings